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- Path: bloom-beacon.mit.edu!senator-bedfellow.mit.edu!faqserv
- From: flash@lopez.marquette.mi.us
- Newsgroups: rec.video.satellite,rec.answers,news.answers
- Subject: Satellite TV Frequently Asked Questions List
- Supersedes: <Satellite-TV/FAQ_761584275@rtfm.mit.edu>
- Followup-To: rec.video.satellite
- Date: 21 Mar 1994 10:51:57 GMT
- Organization: Great White North Uplink, Inc.
- Lines: 1651
- Approved: news-answers-request@MIT.Edu
- Expires: 4 May 1994 10:51:47 GMT
- Message-ID: <Satellite-TV/FAQ_764247107@rtfm.mit.edu>
- Reply-To: flash@lopez.marquette.mi.us
- NNTP-Posting-Host: bloom-picayune.mit.edu
- Summary: This posting contains a list of Frequently Asked
- Questions (and their answers) about TVRO (Television Receive
- only) Home satellite systems, and should be read by anyone
- interested in knowing more about Satellite systems.
- X-Last-Updated: 1994/03/17
- Originator: faqserv@bloom-picayune.MIT.EDU
- Xref: bloom-beacon.mit.edu rec.video.satellite:16226 rec.answers:4513 news.answers:16642
-
- Archive-name: Satellite-TV/FAQ
- Last-modified: 1994/3/17
-
- Copyright 1992, 1993, 1994, Gary Bourgois
-
-
-
-
- USENET SATELLITE FAQ LIST
- Frequently Asked Questions in rec.video.satellite / HOMESAT-L
-
- Compiled and Edited by Gary Bourgois, WB8EOH
- Send additions/further questions to flash@lopez.marquette.MI.US
-
- May be posted to other networks and individual systems provided it is not
- edited or modified in any form.
-
-
- New this issue: Table of Contents Added, many additions and revisions
- including handy phone number reference.
-
- DESTROY ALL PREVIOUS EDITIONS
-
- Gary Bourgois, FAQ Author
-
- ---------------------------------------------------------------------------
-
- Contents:
-
- What do I need to receive Satellite TV?
-
- Who should own a Satellite Receiver?
-
- What types of things can I see with a satellite system that I might not
- find on Cable or Broadcast TV?
-
- How much will a satellite system cost me?
-
- Where can I get a list of all the satellites and satellite channels?
-
- In reference to a satellite communications system, what does a backhaul mean,
- and what does it physically represent?
-
- What about scrambling, isn't it all scrambled these days?
-
- How much does it cost to "descramble" the scrambled channels?
-
- Are the networks scrambled?
-
- What channels will never be scrambled?
-
- How do descramblers work?
-
- Where can i get the plans to build a descrambler so I can watch for free
-
- How small a dish can i use, and what is this DBS thing?
-
- How can i know which NBA and NHL games are on the birds?
-
- Can you watch more than one TV at the same time?
-
- Can I receive international satellites on my dish?
-
- What about this mysterious KU band?
-
- What does it cost to add KU to my system?
-
- How long does a satellite "last" and why do they get regularly replaced?
-
- It is early Spring (Fall) and I was watching my satellite dish and the
- picture got fuzzy and vanished. What happened?
-
- What is SCPC?
-
- What are DATS and SEDATS Audio, and how can I receive them.
-
- What digital information is available on satellite and how do I get it?
-
- What is the best satellite system for me?
-
- Isn't it difficult to install a satellite system?
-
- My community has restrictive covenants and dishes are not allowed.
- Is there anything I can do to install a dish?
-
- I live on a wooded lot with lots of trees. Is this a problem?
-
- I have a question that was not on this list. How do I get an answer?
-
- Reference Section
-
- ---------------------------------------------------------------------------
-
- WHAT EQUIPMENT DO I NEED TO RECEIVE SATELLITE TV?
-
- A TVRO (TeleVision Receive Only) System consists of the following components:
-
- THE DISH
-
- This is the most visible component, a parabolic reflector which may
- consist of Solid Aluminum, Perforated Aluminum or WIRE MESH. Dish
- sizes vary from small (3-4 feet KU BAND, EUROPE) all the way to
- 16-20 Ft (USA Commercial C-BAND) with the average falling between
- 7-12 ft, 10 ft being most common. This device focuses the microwave
- signals coming from the satellites much as the mirror in a reflecting
- telescope concentrates the light from distant galaxies.
-
-
- THE MOUNT
-
- The most common type of dish mount is called a POLAR MOUNT, so named
- because it is oriented to coincide with the earth's axis, enabling
- it to "track" the satellites, which are spread out in geostationary
- orbit in a band of the sky called the "Clarke Belt", named after
- Arthur C. Clarke, who dreamed up the concept of geostationary
- communications satellites back in 1945.
-
-
- The mount is installed on a 3 inch pipe, which is sunk in concrete.
- Most (but not all) mounts require a 3.5" OD pole. In most (but not all)
- cases this is a 3" ID pipe. Schedule 40 works well, so does used "drill
- stem". In many areas, this is available from salvage dealers at very
- reasonable prices. (* OD refers to OUTER DIAMETER, ID refers to
- INNER DIAMETER)
-
-
-
-
-
-
- THE POSITIONER ARM (Actuator)
-
- A device containing a motor that is used to swing the satellite dish
- to allow it to focus on individual satellites, which may be as close
- to one another as 2 degrees of arc. Actuator arms are most commonly found in
- 18- and 24-inch lengths (the longer the arm, the wider the arc that
- the dish can "see".) In addition, a more expensive aiming mechanism,
- called a "horizon-to-horizon" actuator, is capable of more precise aiming
- (important on Ku band and closely-spaced satellites), as well as being
- able to see the entire satellite arc from your location.
-
-
- THE LNB
-
- This is the Little gizmo that amplifies the very weak signals from
- the dish, and also converts them to a more suitable band of
- frequencies. LNB means LOW NOISE BLOCKCONVERTOR. Older systems
- consisted of separate components: LNA (Low Noise Amplifier) and a
- downconvertor which changed the received signals (3-4 GHz, or
- GIGAherz ....A GIGAHerz is one thousand megaHz....) to 70 Mhz.
-
- The "standard block" used today is 950 to 1450 Mhz. Both C and
- KU band (while they input on vastly different frequencies) output
- on the 950 to 1450 Mhz block. HOWEVER there are special consider-
- ations when dealing with KU (explained later)
-
- THE FEED ASSEMBLY
-
- The feedhorn acts as a microwave "funnel" if you want to think of
- it that way. This device places the LNB at the focus of the dish,
- and is usually just called "the feed". There are several different
- types of feeds.
-
- Single C band feed: Contains ONE C band LNB. A device called
- a POLAROTOR is located inside, which allows the reception of
- both vertically polarized and horizontally polarized channels.
- In general practice, the EVEN channels are on ONE polarity and
- the ODD channels are on the opposite polarity. The actual
- polarity scheme depends on the satellite in question.
-
- Dual C band feed: Allows the use of Two C band LNB's one for
- horizontal polarization and one for vertical.
-
- Dual Band Feed (C and KU): Has two separate LNB's, one for C
- band and one for KU band.
-
- DUAL C band and single KU band feed: (There is at least one
- version of this type of feed.
-
- The most popular Dual Band feedhorns are the Chaparral CO-ROTOR II
- Gardiner and ADL, though there are others on the market. While these
- are actually a compromise system, with some minor losses, in
- practice they work pretty well.
-
-
- SATELLITE CABLES
-
- This is a bundle of various wires and cables that run from the dish
- to the receiver, and consist of cables for the C and/or KU LNB's,
- Power to the LNB (Usually sent over the same COAXIAL CABLE) as well
- as power for the positioner arm, return signals for position readout,
- and control voltage for the polarotor.
-
- Power to actuator Arm (Two conductors)
- Return position readout from actuator (Two conductors)
-
- The position readout cable from the actuator to the actuator controller
- should have THREE conductors for the position sensor. For pot sensors, one
- is for the tap, the other two are for the resistor. For pulse sensors, one
- is ground, one is +5V, and the other is pulse input. Not all arms require
- all three connections, but my scrounged Saginaw special has some nifty
- hall-effect gizmo that does require power to generate pulses.
-
-
- Power to polarotor (Two conductors)
-
- Polarotors come in two different varieties. The "old style" just used a 12V
- motor to rotate the probe. Apply power, it moves. Reverse polarity, it
- changes direction. The new ones use a three wire connection. One for +5V,
- one for ground, and one for "pulse".
-
-
- RG-6U cable (rather than the often-seen RG-59U) is the cable of choice
- for the higher frequencies of satellite TV.
-
-
-
-
-
- RECEIVER
-
- There are many receivers available by a number of manufacturers,
- both new and used. The receiver takes the signal from the LNB
- and produces a TV picture from the wideband FM video, and also
- allows you to tune SUBCARRIER audio, which can provide many
- different audio only services such as MUSIC and TALK shows and
- even DATA TEXT reception. Newer receivers work with the standard
- 950-1450 mhz block that comes out of a standard LNB. Older ones
- use a direct 70 MHZ feed and have an LNA (low noise amplifier) and
- downconvertor at the dish. If you are on a budget, one of these
- older type receivers might be a good place to start, though most
- folks today use the more modern technology.
-
- Your receiver may also have a descrambler built in for decoding
- PAY services. This type of receiver is called an IRD or
- Integrated Receiver Descrambler. You need a descrambler for
- services like HBO and regular CABLE-TV type services (to be
- discussed later)
-
- DESCRAMBLER
-
- The DE-FACTO consumer descrambler is the VIDEOCIPHER system which
- is manufactured by General Instruments (G.I) in the USA. There
- are stand-alone decoders still available. However a major consider-
- ation is that at the present time, Descrambler technology is changing
- and older descramblers will not work under the new standards. Beware
- when buying an IRD (INTEGRATED, RECEIVER DESCRAMBLER) that the
- unit can be upgraded to the new VC-II+
- and forthcoming VC-II+ RS (Renewable Security) if you plan on watching
- scrambled (Mostly Cable) services or Pay Per View movies and sports
- events.
-
- In Canada, the OAK-ORION system is another popular scrambling system,
- which is used by TELESAT CANADA on the ANIK (Canadian) satellites.
- These programs may NOT be subscribed to in the US Legally. There ARE
- some USA programs transmitted with the OAK-ORION system, primarily
- Horse Racing and Hospital programming. While it is LEGAL to own a
- OAK-ORION decoder, there are not enough services available in this
- format to warrant doing so. Unless a person is a REAL horse racing
- nut, and even then, getting the decoder AUTHORIZED to descramble
- the horse races is questionable.
-
- There are other scrambling systems in use in Europe.
-
- In the USA, there has been a serious market for "pirate" or "chipped"
- decoders, which receive scrambled services without the payment of
- subscription fees. This situation has lead to the change to the
- revised VC-II+ and forthcoming VC-II+ RS systems, which hope to
- thwart this piracy through the use of a renewable "credit card" type
- of chip system. Of course, this technology costs the consumer
- additional money, on top of subscription fees that for the most part
- are higher than comparable cable prices. Since the majority of the
- scrambled channels are owned by the cable TV conglomerates, who
- would prefer people subscribe to cable rather than view by satellite,
- the reasoning here is obvious. For this reason, satellite TV
- popularity in the USA has declined.
-
- More about scrambling later in this FAQ list.
-
-
-
- WHO SHOULD OWN A SATELLITE SYSTEM:
-
- Most owners of Satellite TV systems these days fall into the following
- categories:
-
- 1. Those who can not get cable due to isolated location.
- 2. Those who wish to receive programs not available on their
- local cable system.
- 3. People who desire the sharpest "blow you away" video picture
- possible (Studio Quality, far better than cable or over air)
- Or those who want DISCRETE stereo sound from channels or
- networks that are not carried in stereo in their local
- area.
- 4. News Junkies who want to see unedited news coverage from the
- source location, before it gets chopped up and packaged.
- 5. Experimenters and techy hobby types who enjoy tinkering.
- 6. Audiophiles who want to hear HUNDREDS of music services in
- superior quality.
- 7. Digital Information Junkies desiring info-text services.
- 8. Those who desire foreign Language programming.
- 9. Individuals who like to see certain TV shows BEFORE they
- are aired over the networks, often without commercials.
- 10. Those in search of additional programming, including pay per
- view movies.
- 11. SPORTS NUTS... There is more sports on satellite than any
- human being can STAND. Virtually EVERY game of EVERY team
- is up there SOMEWHERE.... Much of it as "Backhauls" which
- are not scrambled, and often do not have commercials.
- 12. Those who want to watch programs earlier or later than seen on
- their local stations. For example, on the West Coast you can
- watch David Letterman at 9:30 PM PST (or watch it at 3:30
- AM Eastern time on the Pacific feed). If you see a music video
- you *really like* on the MTV Eastern feed, you can tape it 3
- hours later on the MTV Western feed.
- 13. Those who want to watch Gene Scott 24 hours a day.
- 14. RADIO NUTS. With the proper additional equipment there are
- hundreds of additional audio services receivable, including
- AM and FM stations from major cities, TALK SHOWS, every
- kind of music imaginable, and very SPECIALIZED formats. Some
- Satellite owners actually spend more time LISTENING to the
- signals on their dish than WATCHING. (See the SCPC Paragraph
- further down this FAQ list for more info)
-
- Just about everyone could find themselves in ONE of the above categories.
-
-
- WHAT TYPES OF THINGS CAN I SEE WITH A SATELLITE SYSTEM THAT I MIGHT NOT
- FIND ON CABLE OR BROADCAST TV?
-
- Live uncensored coverage of news feeds, with no anchor man or reporter,
- just see the news as it happens before live cameras. Major events like
- the WACO debacle and the L.A. riots from multiple feed points, YOU select
- the angle and shot you want to watch.
-
- Teleconferences and meetings of various businesses and organizations, while
- many of these are scrambled, quite a few are not.
-
- Specialty and narrowcast shows, some examples include a 24 hour gold
- prospecting channel, a channel for long haul truckers, etc.
-
- College lectures and advanced courses, not just the simple brain dead stuff
- of the Mind extension University, but REAL graduate level stuff, watch for
- knowledge, or take the course for credit.
-
- A full time channel from NASA, including complete 24 hour coverage of all
- space missions, not just the launch and selected tidbits. See space
- experiments being performed, and just look out the window at the earth
- revolving below.
-
- Several channels of Canadian TV which is superior to American TV, also
- Mexican TV, which includes first run movies in English with spanish
- subtitles. Unscrambled.
-
- BBC TV Breakfast News, ITN news, News from Moscow TV, Paris TV (in French),
- TV Madrid, German TV 24 hours a day, Italian TV, a channel of TV from the
- Asian subcontinent which runs popular Indian and Pakistani films with no
- commercial interruptions (Subscription required). Portuguese TV, Japan TV, A
- Greek Channel, Chinese TV, A channel for Eskimos (Inuit), Arab TV, and many
- other international broadcasts.
-
- 1000 or so AUDIO channels, including every conceivable music format, 24 hour
- BBC world service Radio in FM studio quality. Talk shows, and relays of
- local radio stations in many cities all across the USA. Several channels of
- reading services for the blind, with newspapers, magazines and books read
- aloud.
-
- More sports than a human could stand. Every game in every sport is available
- on at least one satellite channel. Some sports like Baseball scramble games,
- but the NHL does not scramble. Pro and College sports, minor leagues,
- Australian Football, World Cup Soccer, Stanley Cup Hockey. Many games with
- NO COMMERCIALS. All the Auto Racing that a Car Nut could STAND...
-
- Narrowcast Religious programming from smaller and minority faiths, including
- Hindu, 7th Day Adventist (Three Channels), Scientology, and unusual sects of
- Christian and non Christian beliefs.
-
- Alternate Political views, even Nazi Programming, since FCC rules do not
- apply to satellite broadcasting. Right Wing, Left Wing, Wacky or wonderful,
- Satellite TV is the only free thinking broadcasting outlet on the planet.
-
- A talk network devoted to high tech electronics and communications.
-
- New product rollouts and demonstrations designed for distributors and the
- press.
-
- Newsworthy and not so newsworthy Press Conferences in their entirety.
-
- Court trials.
-
- Horse and Dog Racing.
-
- Every Lottery drawing in the country LIVE.
-
- Previews of TV shows that may or may not make it to the networks. Regular
- Syndicated and network shows feed from the studios without the commercials,
- up to a week before the official broadcast, sometimes the final broadcast
- gets edited, Satellite viewers see the shows UNCUT.
-
- Six separate channels of PBS programming.
-
- "Other" not too common shows in the British and/or PBS arena can be found.
- Shows like Eastenders, Upstairs/Downstairs, and the Bravo Channels "Six
- Wives of Henry VIII". Or is it 8 wives of Henry 6th :)
-
- A behind the scenes look at newsroom operations, listen to the reporters
- discussing news stories BEFORE they start talking to the regular viewers.
- See well known newscasters have tantrums live. During the Russian Coup
- Attempt, satellite owners had a 24 hour camera and microphone running on the
- roof of a hotel in moscow, and we listened to the scuttlebutt, watched them
- track down rumors, and saw them eating their lunch.
-
- Crystal clean uplinks of special events (such as the recent CMA awards)
- direct from the event, before commercials are added by the network.
-
- Most of the programming mentioned is unscrambled (Free) and can be picked up
- with any satellite system, including one you can put together yourself for
- less than $500.
-
-
- HOW MUCH WILL A SATELLITE SYSTEM COST ME?
-
- You can pay upwards of $2,000 to $3,000 for a top of the line system
- completely installed. A brand new do it yourself system will run between
- $800 and $1500, with $1200 about average. HOWEVER, if you are
- resourceful, you can set up a system for $200-$500 which will provide
- decent pictures and hours of entertainment. Several members of the net
- have put together systems for less than $100, even FREE. My own first
- system cost $40 complete. It was primitive but was a start, and got me
- hooked pretty quickly.
-
- I have written an article called: THE SCROUNGER'S GUIDE TO SATELLITE TV
- Which details how to go about putting together a low budget (Under $500)
- system that would include stereo audio and SCPC. The article gives hints,
- sources for used equipment, and recommended texts to help you assemble and
- track the system. If you want this article, just ask for it by writing to
- flash@lopez.marquette.mi.us and requesting the SCROUNGER'S GUIDE.
-
-
-
- WHERE CAN I GET A LIST OF ALL THE SATELLITES AND SATELLITE CHANNELS?
-
- There are Satellite TV guides available that have a partial listing of
- what is in the sky, and these also include program listings for the
- various regular program services. You should be able to find at least
- ONE of them at any news stand. ORBIT and ONSAT are the two most widely
- available guides. ORBIT is a huge monthly book, and onsat is a weekly.
- Satellite TV week also is a weekly in a tabloid format.
-
- If you are just interested in knowing WHAT is up there, and desire a
- comprehensive listing of ALL the satellites and Channels, there is no
- finer list than the SOUTHSCANNER CHART, which is available here in
- Homesat/rec.video.satellite every month. If you can't wait, write for
- your copy (It is huge, about 100 pages long if you PRINT it) and has
- full information about every occupied transponder in the arc.
-
- Write to Robert Smathers, the list author at:
-
- roberts@triton.unm.edu
-
-
-
- IN REFERENCE TO A SATELLITE COMMUNICATIONS SYSTEM, WHAT DOES A BACKHAUL MEAN,
- AND WHAT DOES IT PHYSICALLY REPRESENT??
-
- Backhauls are signals sent from a remote location back to a network operating
- center. Usually, but not always on KU band, these are special events and
- sports. Since the commercials are usually added by the network, the backhaul
- has no commercials, and you get to hear the announcers talk and see them play
- with the video effects when the signal is not being broadcast to the world
- (before, after the event and during commercial breaks).
-
- What is needed at the backhaul site are cameras, microphones, audio and video
- mixing and effects equipment, and an uplink transmitter and small dish to
- send the signal to the satellite.
-
- At the network operating center, there is a downlink (receive) dish, and
- a receiver to pick up the signal, and pipe it into the audio and video chain
- of the network so that it can be sent to those unlucky people who don't have
- satellite dishes and have to watch these broadcasts on regular TV or Cable
-
-
- WHAT ABOUT SCRAMBLING, ISN'T IT ALL SCRAMBLED THESE DAYS?
-
- This is a common misconception. While it is true that most of the CABLE
- services are scrambled, many of us see this as a feature. If you DO
- desire HBO, THE DISCOVERY CHANNEL, ETC, you WILL need a[ descrambler, AND
- a subscription to these services. However, there are over 150 channels of
- programming "In the clear" that is NOT scrambled, and many of these
- provide a lot of entertainment and information. It all depends on your
- personal taste. Most of the sporting events are not scrambled. PBS is
- not scrambled (Four separate feeds) and many other services are also
- available free for the taking. NOT to mention HUNDREDS of audio services.
- There is more on satellite that you can get for FREE than you would ever
- have time to watch.
-
-
- HOW MUCH DOES IT COST TO "DESCRAMBLE" THE SCRAMBLED CHANNELS?
-
- First you need a descrambler. If you get a new system, most likely you
- will get an IRD, which comes with the descrambler built in. Just make
- sure it WILL upgrade to the VC-II RS, and understand that this upgrade
- may cost you additional money when this system is implemented. The
- descrambler will add around $400 to the cost of your satellite system.
- Next you need a subscription. Movie channels will run you around $7 a
- month or so, actually less than cable, but you do get taken for a bit of a
- ride on the "generic" cable channels such as DISCOVERY, CNN, etc. You can
- not generally by one channel, certainly not at a reasonable cost. Most
- subscriptions to the "generic" cable channels (which does not include
- premium/movie channels) will cost between $150-$300 a year above and
- beyond the cost of the descrambler itself. Some say this is why piracy
- has flourished. Piracy is illegal. If caught with a pirate decoder, you
- can be fined or jailed. Certainly if you sell such equipment, you can
- count on heavy fines, and jail time. Piracy is not good for anyone. Pay
- for your subscription, or do like many of us on the net and watch ONLY
- programming that is NOT scrambled.
-
-
- WHAT IS THE BOTTOM LINE HERE?
-
- You can buy channels in packages like cable TV, or ala carte. The packages
- are not necessarily a better deal. If you don't ever watch 25% of the
- channels in the package, you are probably better off buying ala carte.
- You can also buy most channels on a monthly or annual basis. You save 5
- to 10% through annual purchases.
-
- Price ranges for various channels:
-
- Low rent cable channels (A&E, BRAVO, etc.) $0.79 - 1.00/month
- Network packages (Denver 5 or Primetime 24) $4.00 - 5.00/month
- Premium Channels (Disney, HBO, TMC, etc.) $7.00 -10.00/month
-
-
- ARE THE NETWORKS SCRAMBLED?
-
- ABC is almost entirely scrambled, with some feeds in the clear. NBC is
- Presently totally unscrambled, as is FOX. CBS is usually scrambled, but
- they still have quite a bit in the clear. The scrambling used
- by the networks is such that you can not receive it with a home decoder.
- Totally different methods are used. CBS uses VIDEOCIPHER _ONE_ (completely
- different than the VCII used in home systems). ABC uses LEITCH for its
- scrambled feeds. Networks are scrambled to protect the affiliates. Your
- local station does not want you watching the network shows direct from
- the birds with 400+ lines of resolution and discrete stereo sound, which
- anyone would do given half a chance. They want you to watch the LOCAL
- commercials, so convinced the nets to scramble their feeds. For those
- who can not receive the networks over the air, the only choice is to
- subscribe to NETLINK's DENVER FIVE package or PRIME TIME 24.
-
- Interestingly, network NEWS feeds are usually in the clear! If you are a
- news hound, this will be GOOD news for YOU.
-
- The PRIME TIME ENTERTAINMENT NETWORK (PTEN) backhauls its programs
- several days before they are broadcast on the over the air TV channels.
- These transmissions are in the clear, as are most SYNDICATED feeds.
-
-
-
- WHAT CHANNELS WILL NEVER BE SCRAMBLED?
-
- For the foreseeable future, there should always be SOMETHING in the
- clear, though with the conversion to digital transmission, a new
- definition may be needed for "unencrypted digital transmission" which would be
- available free, but would require a digital decoder. Digital TV will be
- the future, not only for satellite, but for cable and YES even broadcast
- TV by the year 2000 or so. Raw feeds, backhauls, audio, etc. may never be
- scrambled. Gene Scott will probably never scramble. The non cigar smoking
- religion channels also won't. And those few channels AIMED at home dish
- owners won't scramble. Usually when a new channel comes along, like the
- SCI FI channel, it does not scramble right away, and some like the LEARNING
- CHANNEL, COURT TV and CSPAN, though designed for cable have managed to
- remain in the clear for years. Shopping Channels will never scramble.
-
- Some channels, NOT entrenched in cable, will not scramble. There are
- several channels which program for the "LOW POWER TV" market (Channel
- America, Main Street TV, etc) and these are in the clear, and do have
- some interesting programs. CBC from Canada is not scrambled. PBS will
- always have at least ONE channel in the clear. NASA SELECT does not
- scramble their main channel, though, unfortunately, the "mission video"
- contract channel began scrambling in the summer of 1992.
-
- Audio feeds are not scrambled (Subcarrier, FM Squared, SCPC), though there
- is more and more of a move to DATS (Digital Audio Transmission Service) which
- can not be received by the home dish owner. Yet.
-
-
- HOW DO DESCRAMBLERS WORK?
-
- Each VC-II+ has a unique ID number, which you give to programming services
- to subscribe to a channel or package. The programming service broadcasts
- your ID number, and a special code that instructs your descrambler to work
- when tuned to a subscribed channel.
-
-
- I AM AN ELECTRONIC TECHNICIAN, WHERE CAN I GET THE PLANS TO BUILD A
- DESCRAMBLER SO I DON'T HAVE TO PAY TO WATCH SCRAMBLED CHANNELS?
-
- or
-
- WHERE CAN I BUY A DECODER SO I CAN WATCH ALL THE PAY CHANNELS FOR FREE?
-
- You would be amazed at how many times we receive this question,
- usually in EMAIL. Most people who are not familiar with how
- scrambling works, wrongly assume it is some kind of a hardware
- circuit that can be constructed with components from the local
- Radio Shack. BZZZZZZZZT wrong answer.
-
- The present system used in the USA, and by most of the more secure
- video channels in Europe and elsewhere on the planet use a far more
- sophisticated system, one that is "addressable". The current system
- employs what is called "sound in sync". The audio portion of the
- program is encoded as little winky dots hidden in the sync pulses (the
- bars on the top or side of the screen that you do not normally see
- except when your set is misadjusted. This digital encoding also allows
- them to say "DIGITAL SOUND" a nice buzzword. The audio is a compandered
- 15 bit system. Some with "golden ears" find the sound raspy, but most
- folks can not tell the difference.
-
- The real reason the sound is digital is NOT to provide sound quality, but
- rather to insure that unauthorized reception is not all that easy, and
- a decoder can not be built from scratch.
-
- The scrambling system uses a dual decryption key system, and is based
- on the USA DES encryption standard (this is a military sensitive system,
- making export of VCII type decoders illegal).
-
- The scrambling method consists of:
-
- 1. The authorization center (in California) which creates the
- master datastream. This datastream contains a digitally derived
- key based upon the serial number of EACH authorized decoder and
- a "Tier bit" for EACH channel it is authorized to receive
- (determined by PAYING for the service)
-
- 2. "SEED KEYS" in the receiver itself which are COMBINED with
- the other half of the key (transmitted by the authorization
- center) to then create the master key used to decode the audio
- and turn on the video descrambling circuit (The VIDEO is a
- simple matter to decode, as it is only video inversion and
- sync suppression).
-
- But WAIT! What about these pirated decoders that one can buy for about
- $1000 that claim to give you all the channels free? Didn't some electronic
- genius BUILD them?
-
- No. What the pirates did was to create "clones" of the chips in one legal
- decoder that they paid to have authorized. They then removed the chips from
- other legally purchased decoder boards, and put their "pirate chips" in their
- place. The result is that whatever the master parent box sees, so does all
- it's clone child boxes.
-
- The rub here is that:
-
- 1. The pirates, after making a few million dollars in sales from their
- clones, moved to the Caribbean, out of USA law. At this time they
- also stopped paying for the subscription on their ONE legal decoder
- from whence all the clones are derived. POOF. All the clones go
- dead.
-
- 2. Other pirates, not as smart get caught by the FBI. The FBI turns
- the serial numbers over to the authorization center. POOF. Same
- scenario. All the clones go dead.
-
- 3. Some pirates were not caught. Some clones still live. HOWEVER,
- G.I. (the company who makes the decoders) CHANGES the scrambling
- system this fall to a totally new method. POOF. Etc.
-
- Cloning is the main method of pirating the signals. No one has EVER built a
- VIDEOCIPHER descrambler from scratch. The very technology employed requires
- that the system co operate with the authorization codes transmitted along
- with the TV signal. There is no hardware way around this. It is a software
- scramble, requiring TWO halves of the code.
-
- There is a second method of descrambling, which involves entering the other
- half of the key MANUALLY with the keyboard. This is called "WIZARD"
- Technology. However since the code changes every month, a new WIZARD Code
- must be entered. To obtain these codes, some pirates set up 900 type phone
- numbers. The FBI then gets a printout of everyone who calls. POOF.
-
- Recently, the programmers have taken to a new tactic to foil the
- wizard code users. Instead of monthly changes, they started changing the
- codes every three days or so. There was an unhappy side effect of some
- LEGAL users and Cable Companies also losing their authorization, but we
- can expect these tactics, called ECM, or Electronic Counter Measures to
- continue. We understand that this methodology HAS been successful in
- discouraging some of the die hard pirates, finally convincing them to
- get legal boxes.
-
- With HBO and Showtime finally dumping the VC2 commercial Datastream in
- October of 1993, pirate boxes just plain no longer work.
-
- An older hack that no longer works was called the THREE MUSKETEER HACK. (All
- for one and one for all). If a person subscribed to ONE channel, the
- modified decoder chip then descrambled them ALL. This one died a LONG time
- ago.
-
- The VCII Decoders will ALL stop working soon. Then to continue to receive
- programming, you need a VCII+. All LEGAL subscribers were supposed to
- receive free upgrades. Those with pirated decoders could not upgrade, and
- lost their investment. The VCII+ RS (Renewable Security) decoders have
- already been delivered, one step of security above the VCII+. The RS has a
- little slot for a "smartcard" which will be sent to legal subscribers when
- the pirates break the VCII+ code. And DIGICIPHER decoders are already coming
- on the market, which will be the NEXT kind of decoder on the market AFTER the
- VCII+ RS. You can't keep up with it if you don't have a legal subscription.
-
- Scrambling is a fact of life. It is not going to go away. There are three
- ways to play:
-
- 1. Pay for your subscription. In the end this is the cheapest way to
- go if you MUST watch the couch potato type programming offered on
- scrambled channels. Your $1000 pirate decoder can (and will) go
- dead on you, with NO recourse.
-
- 2. Just say NO to descrambling and watch the HUNDREDS of free and more
- interesting signals available. Listen to the free audio services.
- Save LOTS of money.
-
- 3. Don't listen to what I have said and find a pirate decoder. Enjoy
- it while it lasts, and hope that the FBI does not visit you.
-
- PIRACY is a crime in the USA and in other countries. Pirates are caught,
- fined and in some cases jailed. The justification for this is that the
- scrambled signals are the property of the PROGRAMMERS. If you watch without
- paying you are stealing. Some people try and justify piracy by saying the
- signal comes on their property uninvited. This argument, while it sounds
- good does not hold up in court.
-
- Scrambling remains a HOT issue in the industry. Publications exist in the US
- and elsewhere with news of various methods pirates use to steal programming.
- You can join this underground if you want to. Or you can purchase a legal
- decoder, and hope that they continue to provide free upgrades with EACH change
- in the scrambling technology (there are THREE more changes already known to be
- coming to the USA scrambling scene).
-
- However now at least you know. You can't go to Radio Shack and get the parts
- to make a descrambler for $15. It is NOT that kind of a system.
-
-
-
- OK I UNDERSTAND ALL THAT VCII+RS+BS+LSMFT STUFF... BUT WHAT THE HECK IS
- D I G I C I P H E R AND WILL THIS CAUSE THE SKIES TO GO DARK?????????
-
- There are alarmist types with agendas of their own who are jumping all over
- the satellite talk programs preaching the gloom and doom of DIGICIPHER. As
- with all technology, there is forward motion, and satellite scrambling is no
- exception. There have now been THREE "Last Decoders You Will Ever Need" and
- DIGICIPHER will be the next. You can't stop it, it is already here. At this
- writing of the FAQ, HBO is already testing the technology, and PBS will be
- using it on their KU feeds on T-401 by early 1995.
-
- The skies are NOT going to go dark. The programmers are NOT going to stop
- offering their programming to subscribers.
-
- Basically this new system is a video compression scheme, which can allow up
- to 5 channels to occupy ONE transponder. Is it an accident that there are
- now 5 HBO services? I don't think so, since HBO is already testing with ALL
- their services on ONE DC Datastream. There is already a receiver being
- manufactured with the new decoder in place.
-
- DIGICIPHER-2 uses MPEG2 video compression, which has been extensively tested,
- and will become the industry standard, not only for satellite, but for CABLE
- as well. G.I. and AT&T are behind the hardware, and PBS and HBO have already
- committed to it. PBS has placed an order for 10,000 units to be placed at
- schools, and T401 will have NUMEROUS educational feeds using the technology.
-
- Those who bemoan the new technology have the same mind set that would have us
- all listening to shellac phonograph records being played with steel needles.
- Rather than cry about it, the smart thing to do is to accept it. And buy
- STOCK in G.I. instead of calling them the ENEMY.
-
- Send EMAIL for transcripts of the interviews with Jim Shelton and Peter
- Knowles regarding the future of digital TV.
-
-
- WHAT DOES THE NEW DIGICIPHER TECHNOLOGY MEAN TO ME... BOTTOM LINE.
-
-
- If you now subscribe to HBO or any of the other scrambled services and just
- got your new VCII+ RS unit, you can count on being able to enjoy it through to
- the end of the warranty period (three years). They won't turn off the VCII+
- datastream next year REGARDLESS of what the DOOMSAYERS are saying. They
- can't. The cable companies won't let them, and they would be in legal hot
- water from many other entities if they did.
-
- If you do not have a descrambler yet, and can live for the moment WITHOUT pay
- services, WAITING is an option. We will have a much better view of the
- future by early 1995. If you DO want to enjoy scrambled services NOW, a VCII+
- can be a worthy investment, especially with the reductions in subscription
- prices that are FINALLY starting to take place. A VCII+ board can be had for
- $399 or so.
-
- Programmers also have bundled packages that include the
- VCII+ RS descrambler. Go for it if you want to be a REAL couch potato. All
- the VCII+ signals are now on ONE end of the arc, and jumping from bird to
- bird is VERY FAST now, almost as fast as CABLE channel flipping.
-
- SOMETHING TO KNOW: DIGICIPHER uses a completely different modulation scheme.
- As we understand it, there will be no such thing as a Digicipher "Module", as
- in Videocipher. You will have to buy a completely new receiver, called an
- IRT or Integrated receiver Transcoder. While there was initially some talk
- of a possible stand alone front end receiver, I would not hold my breath. I
- would begin saving. Figure that a DIGICIPHER receiver will be a High End
- device, priced around $1,500 to $2,000.
-
-
- In any case, you can't fight it. So instead, LOOK FORWARD to DIGICIPHER.
- It will bring MANY NEW CHANNELS to us, and in the long run will be a good
- thing.
-
- Something else to know: There are at Two different kinds of
- DIGICIPHER, PBS will use Digicipher ONE initially but will go to Digicipher
- TWO when it becomes available. Digicipher TWO receivers will receive BOTH
- formats, as well as the older VIDEOCIPHER, which is good news. This new
- receiver will thus bring you ALL the available subscription programming.
-
- Eventually it will all shake
- down. PBS tells us they will eventually go to the standard Digicipher II,
- by 1995, and the feeds will be available free to home dish owners with the
- proper equipment. These feeds are on the KU band, but PBS also maintains
- a channel on Telstar 401 called Schedule X, which is totally unscrambled
- and is transmitted JUST for the home dish owners.
-
-
- HOW SMALL A DISH CAN I USE, AND WHAT IS THIS DBS THING?
-
- While many of us dream of the BIGGEST dish possible, for some reason I can
- not fully comprehend (except that it has to do with Wives and Neighbors) some
- folks want a teensy tiny dish. Obviously a small dish will not bring you the
- joys of the chase, or the WIDE variety of things those of us with full
- capability systems enjoy, but as they say, different strokes for different
- folks.
-
- For C band, a 7 foot dish will give very useful performance these days. If
- you are primarily interested in just cable type stuff, a 4 or 5 foot dish
- will bring you reasonable reception on some of the more powerful C band
- satellites (Like G5, home of the SCI FI CHANNEL) and a 3 footer will bring in
- some of the more powerful KU satellites. A caller to my Friday Night Live
- Satellite Talk Show said he was listening on a 2 foot dish.
-
- BUT even smaller dishes are on the horizon. In April '94a new venture featuring
- 120 watt transponders from a fixed location will start operation. This new
- service called DirectTV is backed by Hughes-Thompson-RCA, and will probably
- succeed where SKYPIX did not. The system will employ an 18 inch dish, and a
- special addressable receiver. This receiver will NOT receive other
- satellites, ONLY the one fixed system it is designed for. It will be fully
- addressable, AND basically DirectTV will be nothing more than a CABLE COMPANY
- IN THE SKY. Your receiver won't work if you don't pay the monthly bill,
- which will be about $30 for basic, and $10 for each premium channel you want.
- Pay Per View movies will also be available, probably for $4 each or there-
- abouts.
-
- For some people, this system will be just the thing they have been waiting
- for, especially those who can not get cable and WANT cable. These folks will
- see the costs as justified, and won't mind dealing with only ONE source.
- However, one thing to bear in mind. DirectTV will be a monopoly. It will not
- be compatible with any other system, including all the millions of dishes and
- receivers already in place.
-
- Remember, if you can tolerate a larger dish, you can receive over 200 video
- and HUNDREDS of audio channels for FREE, no monthly charge. We personally
- feel this is a greater value, and if you DO want premium or pay programming
- it is ALL available already NOW with a conventional satellite system, which
- can be had for very little money when you come right down to it.
-
- Still, we do believe that DirectTV will probably be a big hit. In Europe, the
- ASTRA satellite system has revolutionized the distribution of TV shows.
- Cable did not have a very strong foothold there in most countries, and there
- are thousands of ASTRA systems being sold every month. We expect this will
- happen in the USA as well. What it means to the present satellite industry
- remains to be seen, but we know this much: Nothing stays the same especially
- when it comes to SATELLITE TV.
-
-
- For more information about DBS, get the DBS FAQ. It is available from:
-
- Rich Peterson <NCS.COM!rich>
-
- It is also regularly posted to rec.video.satellite/HOMESAT-L
-
- This FAQ discusses the new and forthcoming DBS systems, primarily DirectTV.
- You will find it very informative.
-
-
-
-
- HOW CAN I KNOW WHICH NBA AND NHL GAMES ARE ON THE BIRDS?
-
- There is a schedule, put out by
-
- Sports Scheduling
- P.O. Box 5756
- Fargo, ND 58105
-
- When a local station or sports network has a game there is usually a
- "Backhaul" (direct feed from the event back to the studio, if the game is
- out of town from the originating station. (Otherwise they don't need a
- bird). Now some of these satellite channels are known in advance, for
- example the games broadcast on the superstations like WTBS or the various
- SportsChannels. This is *not* the case, however, for the "feeds" from the
- arenas back to the local broadcast station. These feeds are paid for by
- the hour, and (usually) the cheapest or most convenient satellite and
- transponder are utilized, so it's not generally possible to predict in
- advance exactly what satellite "channel" will be used for a given game.
- Mike Northam regularly posts the games that he sees in Oregon, AFTER the
- fact. Some wonder what value there is in this.
-
- Mike says:
-
- >My listings, taken over time, however, do show patterns. For example, I
- >know from experience that if I want to see a Blazer game, the *most
- >likely* location for a feed is on G6. So far this season, all the Blazer
- >Cable games have been on G6-14, so that's going to be the first place I
- >look for a game. Most of the Utah Jazz games have been on G6 or T1. The
- >Bulls tend to be on G2, etc. When Portland plays at Utah, I'll look on
- >G6, since a lot of Bonneville (Salt Lake uplink) transmissions are found
- >there. Most NBA cities similarly have "preferred" locations, either due
- >to limitations/preferences of the transmitting uplink or the downlink
- >(for example, KSTU in Salt Lake City may have only one fixed dish
- >available for such purposes).
-
- NOTE: In 1994, the NFL announced that it will scramble. Feeds for FOX and
- NBC will likely no longer be available, and of course CBS lost the NFL, so
- FOOTBALL is up in the air at the moment. When we know more, this section
- will be revised. There is rumor that a "Season Ticket" will be available to
- subscribers.
-
-
-
- CAN YOU WATCH MORE THAN ONE TV AT THE SAME TIME?
-
- In a single LNB, single receiver system, you can watch a single channel
- on multiple Tvs, if you have cabled from your receiver to each TV. It
- is not possible to watch different channels with this system. To watch
- different channels you need DUAL LNB's for C and DUAL LNB's for KU.
- You will also need a separate receiver for each location, and a fairly
- complex means of splitting and distributing the incoming cables. It
- can be done, cable companies do it all the time, but it is probably not
- worth the effort, especially if you want to view subscription channels
- because the bad news is you will need to pay another subscription for
- EACH LOCATION. That can be expensive. However, having at least two
- receivers is not a bad idea, and fairly easy to do. However, you can
- only watch signals on ONE satellite at a time doing this. One alternative
- is to RECORD programs ahead of time for viewing by others in the family.
- In this case having a couple of receivers, a couple VCR's and splitting
- subscription channels between the two will let you build up a nice
- collection of tapes in no time. Once the family is really sold on the
- dish, it will not be hard to convince them you need ANOTHER one. Or two or
- three.
-
-
- CAN I RECEIVE INTERNATIONAL SATELLITES ON MY DISH?
-
- This depends on where you live, what size dish you have, and how low you can
- "aim" your dish to the horizon. Playing with the Intelsats, Panamsat, and
- the Russian Statsionar birds is something that folks on the East coast of the
- USA do all the time. You should have a LARGE dish though, 16 to 20 feet to
- really do the job, though people HAVE picked up signals with dishes as small
- as 7 1/2 feet from as far west as Minnesota. With the average 10 to 12 foot
- dish you may do just fine. To receive the signals, you will need a few
- modifications to your system. You will need a circular feed, as unlike
- Domestic USA birds that are Horizontally or Vertically polarized,
- International satellites use Right Hand, or Left Hand Circular Polarization.
- If you have a monster dish, you can get by without the proper feed, but you
- will loose at least 3 to 5 db of signal. Chaparral makes a special feed for
- international satellites, at a cost of around $325. As an alternative, there
- is a plastic insert you can obtain that will convert your feed to circular.
- This item is quite cheap, about $20.
-
- International birds have a LOW look angle, very close to the horizon, so a
- horizon to horizon mount is recommended if you are serious about receiving
- foreign programming. The AJAX H/H mount is a worthy investment. You will
- also need a multistandard TV, or some means of viewing PAL and SECAM signals,
- which are different from the NTSC system used in the USA. If you don't mind
- black and white, though, a B&W TV is easily adjusted to pick up the European
- signals, and is suitable for the experimenter and tinkerer. The Panasonic
- AG-W1 VCR has a built in standards convertor, which will allow you not only
- to view these international channels, but also to record them (you can not
- use your USA VCR to record PAL or SECAM signals). Much of the international
- stuff is on KU band, and the European KU band is different than the American
- band, so you need a frequency agile receiver, and the ability to store and
- program the various frequencies. Even the C band signals are not quite the
- same channels as a domestic satellite receiver expects, so you may have to
- adjust your video fine tune to receive them. This aspect of the hobby is
- exciting, and if you are interested in NEWS events LIVE, or cultural variety
- the cost is minimal. While the east coast is the place to be for the best
- international reception, good signals can be picked up on intelsats in the
- midwest using a 10 foot dish. There is limited access to Pacific Satellites
- on the west coast.
-
-
- WHAT ABOUT THIS MYSTERIOUS KU BAND?
-
- Ku band satellites don't require as large a dish to receive, some have 32
- transponders instead of the 24 on C band. The true satellite junkie will
- want KU because "it is there". In addition, there is talk of more and
- more transmissions on this band. SBS6, for example is one busy bird, with
- MANY sports and newsfeeds. KU offers a LOT to those who want to
- experiment and explore. G4 and G7 have beautiful KU signals, and if you
- live in the Northern USA, there is some very interesting stuff on the ANIK
- satellites on KU band.
-
- Ku band satellites are harder to tune than C band, often requiring extensive
- manual adjustments. Ku is also more weather sensitive. Ku programming
- services are not as well documented as C band. On a larger dish (like a 10
- footer) the KU signals are as narrow as a laser beam. One brief touch of the
- actuator and the signal is gone. GETTING it in the first place (tracking) is
- not a job for the faint of heart. HOWEVER if you have your dish tracked for
- the KU band, it will be DEAD ON for C band.
-
- PBS is now on KU, and ABC also has feeds there, both on the
- T-401 Satellite. This could be the push that gets many folks to upgrade
- to KU.
-
- NBC feeds all its programming on K2, a KU satellite. The NBC programming is
- all in the clear, though there are rumors they may scramble.
-
- With the loss of the ANIK E2 satellite (To be restored in mid 1994 they
- tell us) MANY Canadian services have moved to KU band on the E1 bird.
-
- KU is also the place to look for NEWS and SPORTS feeds, and backhauls of all
- sorts. International type programming (Chinese, Russian, Japanese language)
- and many educational feeds are all up there. For the died in the wool dish
- head, KU is where it is at.
-
-
- WHAT DOES IT COST TO ADD KU TO MY SYSTEM?
-
- If your dish is KU compatible (some mesh dishes are not) all you need
- to add OUTSIDE is a DUAL BAND FEED, such as the COROTOR II, and an
- additional KU LNB. The cost for this will be between $200 and $300
- depending on where you buy, and how sensitive your KU LNB will be.
-
- To tell if your mesh dish will work on KU measure the size of the holes or
- openings in the mesh. If they are greater than 1/4 inch, you won't get good
- KU reception.
-
- KU LNB's are measured in DB, rather than degrees Kelvin (as C band LNB's
- are measured). .7 DB is considered good. 2.0 is considered junky, though
- you can probably find a 2.0 db KU LNB pretty cheap, and it CAN give
- acceptable signals on MOST birds, and might be a good place to start if
- you find one used.
-
- You obviously will ALSO need a receiver that can tune KU band. Most
- newer receivers can.
-
- There is also a device called the UST-55 KU convertor which was made
- by UNIDEN. These are sometimes still available from various dealers
- at a reasonable price. The convertor does two things. It INVERTS the
- video (KU video is inverted compared to C band) and it adds a fine
- tuning control to allow compressing 32 channels into 24 channels.
-
- There is no real standard for KU channel layout as there are in the C
- band. Various receivers number the channels differently.
-
- Tracking your dish for KU is more difficult. The beamwidth is much
- narrower, and everything is more critical. If you get your system to
- track well in the KU band, your C band reception will be perfect.
-
-
- HOW LONG DOES A SATELLITE "LAST" AND WHY DO THEY GET REGULARLY REPLACED?
-
- The average lifespan for a communications satellite is about 10 years. While
- the electronics inside the satellite can last many many years, the
- determining factor is the "station keeping fuel". Satellites only "appear to
- be stationary because of their location in the Clarke Belt, in reality they
- are whirring about the planet, and their orbits become eccentric if left
- alone. So each satellite has small rockets on board to regularly adjust
- the orbit of the bird. After 10 years this fuel runs out, and the satellite
- can no longer be adjusted with respect to its position. This causes the
- satellite to start to appear to "wobble" up and down in the orbital plane,
- and eventually become unusable. Before this happens, a replacement bird
- is launched, and the old satellite is unceremoniously "kicked" up into a
- higher "parking" orbit. While it is a nice thought that some day a
- space salvage company could go up there and refuel all those old birds,
- it is unlikely, and the rapid changes in technology make the older low
- power satellites nothing more than curious antiques.
-
-
- IT IS EARLY SPRING (FALL) AND I WAS WATCHING MY SATELLITE DISH AND
- THE PICTURE GOT WEAKER AND THEN VANISHED FOR 20 MINUTES. IS MY SYSTEM
- BROKEN?
-
- No. You have just experienced the twice yearly Solar Transit Event. This
- occurs when the sun, which emanates a very strong amount of microwave energy
- is in line with the Clarke Belt where the satellites live, and your dish.
- This is incorrectly called "SUNSPOTS" even by people who should know better
- (TV station engineers and the like). It only lasts a week or so, and affects
- EVERY satellite in the arc moving from east to west. It affects EVERYONE who
- uses satellites, including the Cable Companies, TV and radio stations. Cable
- channels will wink out, Radio programs will be replaced by music, and TV
- stations have to carefully record shows in the middle of the night to play
- back during the day so viewers won't know there is a problem.
-
- You CAN use this problem as a tool though. This is a great way to do a poor
- man's site survey. Just go to where you plan to install a satellite dish,
- and sit there all day and watch the sun. If it goes behind trees, you will
- know there won't be good reception of some of the satellites. If all day
- long the sun is unobscured, then you know there will be a great location for
- a dish.
-
-
-
- WHAT IS SCPC?
-
- SCPC (Single Channel Per Carrier) is a method of transmitting audio
- over satellite. Primarily this is a service for Radio Stations, and
- is not meant for the general public. This alone makes it fascinating
- to receive. There are hundreds of SCPC channels in use. Radio
- Networks, Sportscasts, Music services, talk shows, all are heard on
- SCPC, as well as major market radio stations. SCPC can be received
- with a special receiver, and there are a number of "tricks" that
- netters have used to pick up these signals, which can not normally
- be received on consumer satellite receivers. If one has a satellite
- receiver that has a "70 MHZ LOOP", a cheap TV band Radio can be used
- to tune SCPC. While it is also possible to use SOME scanners that
- tune the 70 mhz loop (such as the RADIO SHACK PRO-2006) the results
- are very poor. The TV radio actually sounds MUCH better. The reason
- for this is due to the "step" frequencies of the scanner. With SCPC
- the main problem encountered is one of BANDWIDTH. SCPC signals can
- be found as narrow as 50 KHz bandwidth to as wide as 150 or more.
- By comparison, The TV band radio receives approximately 75 KHz bandwidth
- and a normal scanner in narrow mode receives 5 KHz. For this reason,
- a standard scanner will not give a listenable signal, even if it is
- modified to tune the 70 MHZ loop.
-
- Some receivers, with VIDEO FINE TUNE can be used to shift the 70 MHz
- IF band UP to the low end of the REGULAR FM band. This can give
- fair results, though usually the entire SCPC spectrum can not be tuned
- this way.
-
- For satellite receivers that do NOT have a 70 mhz loop, it is necessary
- to use a DEDICATED receiver that can tune the 950-1450 mhz band.
- The ICOM 7000, 7100, and 9000 have this capability, though they are
- quite expensive. The less expensive (~ $600 ) ICOM R-100 is an
- extremely wideband receiver which tunes from 100 KHz to 1800 MHz. This
- includes the whole 950-1450 block, so it can tune direct signals from
- the LNB. To connect the R-100 or a similar receiver, one uses a DC
- BLOCK SPLITTER. The isolated side goes to the R-100, and the other
- side goes to the Sat Receiver, which is necessary to power the LNB.
- The R-100 is very desirable because it also tunes Standard Subcarrier
- (available through the RAW VIDEO Jack on your sat receiver) as well
- as FM SQUARED audio. It also is a nice public service scanner, and
- SHORTWAVE receiver. This one radio does it all AND it doubles on sax.
-
- There are two DEDICATED SCPC receivers. The simpler HEIL SC-ONE, which
- features analogue tuning and sells for around $450. The newer UNIVERSAL
- SC-100 features 50 memories, digital readout and a built in amplifier.
-
- BOTH these receivers lack MULTIPLE bandwidths, which mean they do not
- give perfect reception of all SCPC signals.
-
- Also, SCPC signals are compressed on a 3 to 1 DBX encoding, which
- means reception is lacking in dynamic range unless a suitable
- decompression scheme is used.
-
- There is no PERFECT consumer SCPC reception system, but the above
- methods DO work, and can provide a lot of enjoyment AND the reception
- of several hundred new signals.
-
- Author note: A detailed discussion of audio subcarriers is available
- in a written transcript of a recent radio show I did regarding the
- various methods of tuning satellite audio. Write if interested in a
- copy of this transcript. Also, a listing of SCPC audio stations is
- available as part of Robert Smathers' SOUTHSCANNER CHART, regularly posted
- to the rec.video.satellite / HOMESAT lists.
-
- I have also written an SCPC FAQ, which contains much of the information you
- have just read, with some additional information, it is available by writing
- me at the address in the header of this FAQ. (Print version from Phil Dolve,
- whose address is in text above)
-
-
- WHAT ARE DATS AND SEDATS AUDIO, AND HOW CAN I RECEIVE THEM.
-
- DATS is Digital Audio Transmission System, and SEDATS is Spectrum Efficient
- Digital Audio Transmission System, which are replacing SCPC for many
- national services. All the Major networks, CBS, NBC, ABC, MUTUAL and
- quite a number of syndicators (Howard Stern, etc) are now on DATS and
- SEDATS. These signals are primarily on the Aurora (C5) Satellite. There
- is no home DATS or SEDATS receiver, and no known experimenter project
- for receiving this audio. We understand that the manufacturers of these
- receivers WILL sell them to anyone, including home dish owners, but
- the $4000 price tag for a mono audio only receiver has thus far placed
- this technology out of reach for 99.9% of the audio experimenters we know.
-
-
- WHAT DIGITAL INFORMATION IS AVAILABLE ON SATELLITE AND HOW DO I GET IT?
-
- There are a number of different text information services available
- via satellite, some requiring no subscription fee, and others that
- are pay services.
-
- WST = World System Teletext. This system is very popular in
- Europe and is also available in the USA. Teletext reception
- requires you add a teletext decoder, a device that costs less
- than $300, and connects between your satellite receiver and
- TV set. The information is displayed as text on your TV screen,
- so no computer or other device is needed. Information includes
- News Stories, Sports Scores, Trivia and other features. The
- data is transmitted in the Vertical Blanking Interval of WTBS
- (Turner Broadcasting Service) G1/18. To receive the signal,
- you must be a subscriber to WTBS, so that you will have an
- unscrambled signal. The name of the text service is ELECTRA,
- and also features weather maps and other information displayed
- in text/graphics on your TV screen. WST Decoders are available
- from Astro Guard Industries, 340 A Rancheros Road, San Marcos
- CA 92069. They have also been seen for sale on SHOP AT HOME
- 1-800-366-4010.
-
- X*PRESS X*CHANGE. By far the most comprehensive source of
- text news is X*PRESS. This service links you into all the major
- world NEWS WIRE services: AP, UPI, REUTERS, TASS and many
- others. To take advantage of this amazing service, you must
- have a computer just to sort the incoming data for you. X*PRESS
- allows you to select articles based upon key word search.
- This is a subscription service, and is not cheap. Expect to
- pay $30 per month for the service. You will also need an
- INFOCIPHER decoder. Computers supported include PC clones,
- Macintosh, ATARI ST, APPLE II. A new PC software package was
- released in June of 1993 for MS/DOS machines which addresses
- problems of earlier versions.
-
- Full information on X*PRESS X*CHANGE service can be had by dialing
- 1-800-7PC-NEWS. The fee is reasonable considering the amount
- of data available. The total news junkie will love it. This
- service is transmitted on Galaxy 5.
-
-
- SKYLINK. This is also a service available for the home TVRO
- user, and offers downloads and some text information and TV
- schedules. Reception requires the purchase of a $150 box, and
- payment of a yearly $90 fee. The main appeal of this service
- is access to a HUGE array of public domain and shareware programs
- for MSDOS compatible computers. There are also weather maps and
- other services. The Shop-At-Home TV service operate SKYLINK, and
- market the box and the subscriptions. The data is fed on an audio
- subcarrier of their home shopping network service on G3/17.
-
- For more information on SKYLINK call 1-800-544-6694.
-
-
-
-
- In addition to these services directed at the home user, there are digital
- signals all over the sky, but these are commercial services, using
- proprietary encoding systems, and are directed at commercial users, which
- are either too costly for the home user to subscribe to, or not available
- at any price. Experimenters occasionally manage to figure out ways to
- tap into these systems, but such discussions are beyond the scope of the
- FAQ. If interested in such things, we recommend Tom Harrington's popular
- book: THE HIDDEN SIGNALS ON SATELLITE TV, even though much of the infor-
- mation in the book is a bit out of date.
-
- There is a movement currently to put USENET on satellite as a free service
- for the TVRO community. The project needs help from people willing to assist
- in writing software, etc. If you are interested, there is a mailing list for
- the project. Do not subscribe out of idle curiosity, but only if you wish to
- be involved in the project or have a deep interest and will not just read a
- few days and then want to cancel the list.
-
-
-
-
- USENET-SAT Listserv is set up for all interested parties.
-
- to join send message to :
-
- listserv@sm2.mcg.edu
-
- in body of message put in
-
- SUBSCRIBE USENET-SAT
-
- you will get a confirming message back as soon as the listserv
- processes your message.
-
- Now to send mail to anyone on the list address message to
-
- USENET-SAT@SM2.MCG.EDU
-
- it will be broadcast to everybody on the list
-
-
-
-
-
-
- WHAT IS THE BEST SATELLITE SYSTEM FOR ME?
-
- We often receive this question, and it is not an easy one to answer.
- this depends on what YOU want. We recommend you go to a reputable
- local satellite dealer, and LOOK at the systems on display. Do not buy
- the first system you are shown, and if you are not sure exactly what
- you want, do not be pressured into buying immediately. The system will
- be there tomorrow AND the next day. You CAN save a LOT of money buying
- mail order, but you will have to install the system yourself. By
- looking at the types of receivers/dishes available, you will get
- familiar with what Satellite TV is all about. There are advantages and
- disadvantages with virtually EVERY receiver on the market, so there is
- no blanket answer to which system is the best for YOU. We suggest you
- spend a LOT of time looking at all the available systems out there. A
- good place to start is in your YELLOW PAGES under SATELLITE TV. Visit
- as many dealers as you can. You may still decide on mail ordering a
- system, there is no law that says you HAVE to buy from the local guy.
- Unless you want a totally installed system. Even so SHOP AROUND.
- Beware high pressure tactics to buy every bell and whistle available.
-
-
- ISN'T IT DIFFICULT TO INSTALL A SATELLITE SYSTEM?
-
- You and a couple of friends can assemble, install and track your
- satellite system in one day, even if you know NOTHING about the
- technology involved. You need only know how to dig a hole, pour
- concrete, and put a pipe into the concrete and get it plumb. There are
- many books on the topic of satellite TV that can help you, which should
- be available on loan from your library. Doing it yourself will save you
- around $500. However, if you don't mind spending the additional money,
- your local dealer will be glad to set your system up so you can just
- sit back and push the buttons on the remote control. This is up to
- you. Some people do not like to tinker and tweak. A do it yourself
- system can take some time before you are satisfied with it.
-
-
- MY COMMUNITY HAS RESTRICTIVE COVENANTS AND DISHES ARE NOT ALLOWED.
- IS THERE ANYTHING I CAN DO TO WATCH SATELLITE TV?
-
- There are a number of things you can do depending on your resourcefulness,
- and also how much you are willing to invest. First, federal law takes
- precedence here. The LEGAL fact is, your community can NOT restrict you
- from installing a satellite dish. If you take them to court, you will win,
- but, of course, you have to hire an attorney and the fight will add $5,000 or
- so to the price of your system, UNLESS you can scare them by showing them the
- fact that the courts MUST side with the dish owner. It would cost you about
- HALF that price to get an FCC TVRO receiving license (Yes they are still
- issued), and as a legally licensed receive station you can also bring the
- government into play. You can scare them by showing them legal briefs that
- show how the cities always lose, and THEN have to pay YOUR legal fees.
-
- If you wish to take the legal avenue, get the help of ASTA, the American
- Satellite TV Alliance. They have a very good legal package which can help you
- put a case together to get your dish. The federal law in question is:
-
-
- Code of Federal Regulations 25.104 is titled "Preemption of local zoning
- of earth stations" and is reproduced below in entirety:
-
- "State and local zoning or other regulations that differentiate between
- satellite receive-only antennas and other types of antenna facilities are
- preempted unless such regulations: (a) Have a reasonable and clearly
- defined health, safety or aesthetic objective; and (b) Do not operate to
- impose unreasonable limitations on, or prevent, reception of satellite
- delivered signals by receive-only antennas or to impose costs on the
- users of such antennas that are excessive in light of the purchase and
- installation cost of the equipment. Regulation of satellite transmitting
- antennas is preempted in the same manner except that state and local
- health and safety regulation is not preempted."
- 83 Am Jur 2d sec. 488 is entitled "Radio and television towers and
- antennas; satellite dishes" and includes the following:
- "In order to regulate satellite antennas and avoid a federal preemption,
- the local ordinance must not differentiate between satellite antennas and
- other types of antenna facilities (L.I.M.A. Partners v. Northvale, 219 NJ
- Super 512, 530 A2d 839). The First Amendment right to receive
- information via a satellite dish is a relative right which may be
- outweighed by important governmental interests, such as the protection
- of community aesthetics (Decker v Plantation (SD Fla) 706 F Supp 851).
- Thus, an owner who was denied a special permit required by local
- zoning ordinance to erect a satellite dish in his front yard did not have
- his rights to due process or equal protection violated, where 16 permits
- had been issued, all for backyard erection of satellite dishes, properly
- screened to maintain the aesthetics of the community (Decker v
- Plantation (SD Fla) 706 F Supp 851). An ordinance governing amateur
- radio antennas does not deprive a homeowner of equal protection on
- the grounds that it discriminates in favor of satellite dish communication
- (Bulchis v Edmonds (WD Wash) 671 F Supp 1270).
- "A 12-foot by 12-foot antenna, attached to the ground by concrete and
- angle irons, is a "structure" as that term is employed in an ordinance
- which prohibits structures in required front yard space (Gouge v.
- Snellville, 249 Ga 91, 287 SE2d 539). "
-
- The preceding was typed to the net by Pravin K. Mishra, Ph.D.
-
- You can get a package of information from ASTA for about $25. Call ASTA
- for more information on their material at 914-997-8192. I used this
- package to successfully defend my own dish installation, which is 26 feet
- high, attached to a huge platform structure made just for the dish. Nothing
- like this previously existed in my city, and they wanted me to get a
- variance. With the ASTA material I did not have to pay for the variance and
- have the hearing (which would have cost $150, and I could have lost)
-
- However, there are cheaper ways. Hide your dish. There is one manufacturer
- that makes a dish look like a beach umbrella, complete with lawn chairs and a
- table. There is also a very ingenious system called "The Rock" which is a
- fiberglass (Microwave transparent) boulder that can go right over a dish and
- hide it. One fellow we know of found out that his restrictive covenants DID
- allow a homeowner to have one of those outbuildings (shed) where people keep
- their lawnmowers, etc. He built one of microwave transparent material, and
- put his dish inside and no one is the wiser. Such a system is actually
- preferable, it protects the dish from wind and the elements. (professional
- radar systems use RADOMES for the same reason)
-
- I know of people who have non permanent dishes. Some roll the dish out at
- night, point it at their favorite bird, and roll it back in the house or
- garage before sunrise. Another person I know lives in a community that does
- not allow dishes, and he has two. They are on wooden bases, and thus not
- permanent. He never removes them, and he tells me they track the arc quite
- nicely.
-
- Of course if you have NOT purchased your house yet, the best thing you can do
- is to move into a community that is not so narrow minded. Especially if you
- get hooked and want MULTIPLE dishes (It CAN happen).
-
- The company that makes the replica boulder dish cammo system is:
-
- The Rock
- c/o QUB-L Vision
- Draw 609
- Concord, CA 94520
-
-
- While you will clearly win ZONING cases, Restrictive covenants are a
- different matter. There are ways to win, but it is not guaranteed, since
- you sign a contract agreeing to the limitations of the covenant. A good
- lawyer equipped with the ASTA information CAN win such a case, but it is
- not the simple issue that ZONING is.
-
-
-
- I LIVE ON A WOODED LOT WITH LOTS OF TREES. IS THIS A PROBLEM?
-
- Not if you have a chain saw. Trees in the way mean you don't get a
- picture, at least in the summer time. Trees have a tendency to block the
- microwave signals. If you are not sure of your situation, it is advisable
- to have a "SITE SURVEY" done by a local dealer. This should cost you no
- more than about $25. Usually you can find SOME place to put the dish to
- see the satellites, and mounting on a pole or your roof may help the
- situation. I have a similar situation here, and my dish is 26 feet high, and
- includes a massive steel reinforced wooden structure complete with a service
- platform. This helped me clear the tree line enough to actually get FOUR
- international satellites. Obtaining permission from the city to build this
- structure was a bit of a hassle, but thanks to the material from ASTA, I was
- able to convince them that under the Federal Pre-emption the city could not
- deny the installation. I now have perfect reception of the entire satellite
- arc.
-
-
- I HAVE A QUESTION THAT WAS NOT ON THIS LIST. HOW DO I GET AN ANSWER?
-
- Ask Away. You can post your question right on the net. The only dumb
- question is the one you don't ask. We don't mind helping you get started.
- Or send me a note: flash@lopez.marquette.mi.us and I will try and answer,
- and include your question in future versions of this FAQ list.
-
- If you are reading this FAQ in printed form, and do not have a way to write
- us on the computer network, we will now answer your questions by postal mail.
- However, due to severe financial limitations, we can only comply with your
- request for information by mail if you:
-
- 1. Include a Stamped Self Addressed Envelope, placing enough postage
- to cover the material you are requesting. (if you are asking a
- simple question, one stamp is enough, if requesting more detailed
- information, please place more postage on your envelope sufficient
- to cover return mailing cost)
-
- 2. Write on the back of your envelope a summary of what you are asking
- for EVEN if you send a letter. We receive so much mail that letters
- and reply envelopes can get mixed up.
-
- 3. Include a minimum $1 contribution to cover processing your request.
- We are a non profit corporation, and the wear and tear on equipment
- etc. is eating us alive. Larger donations are TAX DEDUCTIBLE and
- will be used to cover expenses involved in information processing.
-
- 4. Send your question, SASE and Contribution to:
-
- Satellite Answers
- Great White North Inc.
- 429 Spring Street
- Marquette, MI 49855
-
- 5. We can not process any mailings that do not comply with the above
- stipulations.
-
- 6. If you make your request by computer EMAIL, there is no charge.
- This mail offer is made only to those who do not have electronic
- access.
-
- 7. We can not send long EMAIL files to Prodigy, so if you are on
- that system, your only option is to use the mail method outlined
- above unless you are asking a very simple question. Too often
- Prodigy rejects our replies because they go over the 6K Prodigy
- limit.
-
-
- If you already have a satellite dish, we encourage you to listen to our
- weekly call in show over the OMEGA RADIO NETWORK. This Listener Supported
- public service program is now in its third year. Each week we discuss all
- the latest TVRO news, and answer many technical questions from listeners.
-
- Friday Night Live can be heard on G3/17 5.8 Wideband Audio EVERY Friday night
- from 9PM to Midnight EASTERN TIME.
-
-
- REFERENCE SECTION:
-
-
- HANDY PHONE LIST TO HAVE AROUND DISH...
-
- Ajak Industries(719)784-6301
- California Amp (805)987-9000
- Channel Master (919)934-9711
- Chaparral (408)435-1530
- EchoSphere/HTS (303)799-8222
- Fujitsu Genrl. (201)575-0380
- Gardiner (214)348-4747
- General Inst (619)535-2545
- Houston Trackr (303)790-4445
- JGS (314)968-8788
- Norsat (604)597-6200
- Panasonic (201)348-7846
- ParabolicsEast (501)729-3103
- ProBrand (404)423-7072
- Prosat (714)261-2204
- Orbitron (608)588-2923
- R.L.Drake (513)746-6990
- SRS (517)697-3624
- STS (314)421-0102
- Tee-Comm (416)878-8181
- Thomson/Saginaw(517)776-5111
- Toshiba (312/708)541-9400
- Uniden (817)858-3300
-
-
- Names and addresses of Equipment Suppliers
-
- - New Satellite equipment (In alphabetical order) -
-
- Bob Duckworth Consulting (Atlanta)
- 404 874 5051
- KU system w/ BR1000 manual receiver for $400
-
- EchoTrak
- 305 344 6000
- located in Coral Spring, Fl
- from an ad in QST
- Northeast Satellite 201-728-3217 (NJ)
- Uniden receivers (Complete C band system for $979),
- "Top of the Line" w/ Uniden 4500, 6' dish for $1300
-
- Hannah & Hansen - New Tech Sat., Inc.
- HQ: (412) 621-4214
- HQ: 3404 Juliet St.
- Pittsburgh, PA 15213
- KU-Band Systems
-
- PRISMTECH, INC
- (309)685-0121
- (309)685-0013 (Fax)
- 3303 West Reservoir
- Peoria, IL 61615
- HST, Echostar, Uniden, Chaparral.
- Complete tracking 7.5' dish systems from $1099.
-
- SKYVISION, Inc.
- 1-800-543-3025
- 1-218-739-5231
- Fergus Fall MN
- major dealer - eg, Orbitron 10' dishes for $349 or heavy
- duty for $439... LNBs, etc
-
- Satellite Warehouse
- P.O. Box 85601, Tucson Az
- 87574 - 5601
- 800 851 6534 info at 602 623 5748
- Drake, Toshiba, LNBs, actuators, VCRS Modules ($400)
- "Large Inventory"
-
- SATMAN, Inc.
- 1-800-247-4391
- Peoria IL? (I don't think they are in Peoria, IL)
-
- Universal Electroncs - OH
- 614 866 4605
- (heavy into SCPC)
-
- VHF Communications
- 1 800 752 8813
-
-
- Possible One shot ad (not sure) -
- VCII (not plus) modules, Uniden 4400 receivers...
- 703 238 1951
-
- - Used or New and Used Satellite equipment -
-
- Satcom
- (ask for that division) or leave number for callback
- 800 722 3158
- 714 957 3158
-
- More Used Equipment
- "You name it, we have it"
- 317 385 2305
-
- Satellite TV Muncie, IN
- Uniden 4400s Tracker, Startrack...
- 317 288 0074
-
- "Matrix"
- 503 632 7187
- misc sat receivers - actuators - programmable dish
- controllers - teletext decoders - etc.
- April 93 Nuts and Volts
-
- "Used Satellite Equipment"
- 317 385 2305
- Feb 93 Nuts & Volts
-
- "Satellite Equipment Bought and Sold"
- Megastar 702 386 2844
- >From an ad in N&V
-
- "New and Used Satellite Equipment"
- Rt 1, Box 22, Marshall OK 73056
- >From an ad in N&V
-
- DBS Satellite,
- Ventura Califorina (new & used equip)
- 800-327-4728
- >From an ad in N&V
-
- BEWARE! Cavet EMPTOR!
- Please forward any additions, alterations,
- corrections to pravin@LNBD.uicomp.uic.edu; complete addresses and
- other phone numbers are specially welcome.
-
- Contributors to the equipment section:
-
- Dr. Robert R. Wier <wier@MERLIN.ETSU.EDU>
- Netnews Server <NETNEWS@AUVM.AMERICAN.EDU>
- Mike Gingell <gingell@AURFS1.AUR.ALCATEL.COM>
- Pravin Mishra <Pravin@LNBD.uicomp.uic.edu>
-
- =End=
-
- --
- / Gary Bourgois, WB8EOH, The Birdwatcher: Marquette Michigan USA \
- ([-o Radio Omega G3/17 5.8 - FRIDAY NIGHT LIVE Weekly 9PM Eastern o-])
- \ Now a snazzy new DOMAIN address! flash@lopez.marquette.MI.US /
- GEnie: BIRDWATCHER FAX: (906) 228-7477 GWN BBS: (906) 228-4399
-
-