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- Date: Tue, 4 Oct 94 18:09:05 PDT
- From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
- Errors-To: Info-Hams-Errors@UCSD.Edu
- Reply-To: Info-Hams@UCSD.Edu
- Precedence: List
- Subject: Info-Hams Digest V94 #1094
- To: Info-Hams
-
-
- Info-Hams Digest Tue, 4 Oct 94 Volume 94 : Issue 1094
-
- Today's Topics:
- "How far" does 1 milliwat (and 1 watt) go?
- 2nd Floor Ground or No Ground?
- Amateur Radio in Saudi Arabia?
- Expose - Wouff-Hong
- FOR SALE: C64/VIC20 Combo
- IC-211 accessories wanted
- IC-751 wanted
- Interference from computer causing receive problems
- noise bridge kits?
- OCTOBER 9 BALLOON LAUNCH
- Pacificon 94 10/21-23/94
- Radio Shack Violation
- Where to find 1.2 gig rig?
- Why is aviation COM VHF *amplitude* modulated?
- Yaesu FT530 power plug
-
- Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
- Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Info-Hams Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
-
- We trust that readers are intelligent enough to realize that all text
- herein consists of personal comments and does not represent the official
- policies or positions of any party. Your mileage may vary. So there.
- ----------------------------------------------------------------------
-
- Date: Tue, 4 Oct 1994 15:17:38 GMT
- From: phb@syseng1.melpar.esys.com (Paul H. Bock)
- Subject: "How far" does 1 milliwat (and 1 watt) go?
-
- mikeb@tdc.dircon.co.uk (Michael Barney) writes:
-
- >Could anyone enlighten me on "low power contest" for distance
- >transmissions.
-
- >I seem to recall some "Hamfest" communications going 100's or thousands
- >of miles on less than 1 watt transmit power (and not at microwave
- >frequencies w/ large Parabolics either).
- >I'm specifically looking for "how far" on "how little power" under
- >*relatively ideal conditions* for 1 milliwatt and 1 watt.
-
- As early as the 1920s, a U.S. ham set a record for a U.S. to
- Australia contact using the (then fairly new technique) CW mode.
- (Note: By "new technique" I mean the use of continuous waves as
- opposed to spark. Today, "CW" to most hams means "radiotelegraphy"
- but *spark* was radiotelegraphy, too. Don't be confused.)
- The *input* power was less than 1/2-watt; I'll dig up the info
- tonight and bring it in. It's in the book "200 Meters and Down"
- which was publihed in 1936.
-
- Since that time, many QRPers have made contacts with only a few
- milliwatts, and probably microwatt contacts as well when using
- directional antennae.
-
- (|_|) Paul H. Bock, Jr. K4MSG Internet: pbock@melpar.esys.com
- | |) Principal Systems Engineer Telephone: (703) 560-5000 x2062
-
- "You can have my bug when you can pry my cold, dead fingers from
- around it....." - anonymous radiotelegraph operator
-
- ------------------------------
-
- Date: Mon, 03 Oct 94 22:09:33 EDT
- From: dave@alex.dgsys.com
- Subject: 2nd Floor Ground or No Ground?
-
- In article <36puci$4dl@sefl.satelnet.org>, <jmesser@satelnet.org> writes:
- > Path:
- dgs.dgsys.com!news.sprintlink.net!malgudi.oar.net!satelnet.org!satelnet.org!use
- net
- > From: jmesser@satelnet.org (James Messer)
- > Newsgroups: rec.radio.amateur.misc
- > Subject: 2nd Floor Ground or No Ground?
- > Date: 3 Oct 1994 17:51:14 -0400
- > Organization: SatelNET
- > Lines: 16
- > Message-ID: <36puci$4dl@sefl.satelnet.org>
- > NNTP-Posting-Host: localhost.satelnet.org
- > Keywords: ground
- >
- > I've recently moved into a new house, and my shack is now on the 2nd
- > floor. This new location has provided me with few questions, one of
- > which includes the ground for my rigs and antenna.
- >
- > Some folks say to keep a ground, even though the ground might be as long
- > as 40 feet. Others say to do without a ground completely.
- >
- > Still others suggest using the existing ground that is used in the
- > house's electrical system. To confuse things further, I've also seen the
- > artificial grounds that are advertised in catalogs (MFJs, for instance).
- >
- > So, what to do? What options do I actually have? What are others
- > on the 2nd floor doing? Any suggestions would be appreciated.
- >
- > 73,
- > James - KE4LAY
-
- James:
-
- In the real world, you will find that some kind of ground is needed.
- If you develop any serious shack, you will need a good ground. It will be
- difficult to run 100 watts into any of several antennas without good ground.
-
- You will be better off if you can use antennas that are tuned
- precisely to the band you use the most. This will allow you to run barefoot
- into the antenna, thus getting most of the RF out of the house and away from
- the shack. I would start with this. Any tuners will only disguise problems
- you might have.
-
- A good ground on a second floor is difficult, but it can be done.
- Just takes some work, which is some of the fun in ham radio.
-
- Install a good ground, use barefoot antennas if possible, and consider
- using a "line isolator" in the transmission line at the rig site.
-
- Please Email me with any thoughts you might have. Hope I've given you
- something to think about.
-
- Dave Tucker
- Alexandria, Virginia
- KD4RNG
-
- ------------------------------
-
- Date: 3 Oct 1994 23:46:41 GMT
- From: acs@tattoo.sccsi.com (A.C. Spraggins)
- Subject: Amateur Radio in Saudi Arabia?
-
- Hi there:
- I travelled to the Kingdom 12 times during the late 70's early 80's.
- Since then, I've learned that there is a club station at the Dhahran
- airport. You didn't say where you would be but, it's worth a shot. A
- former neighbor of mine, N5DM, Don Mayhall, operated from there in the
- 80's. I don't know where Don is now. Last I heard, he was a radio
- operator onboard some ship line. You might check the callbook for his
- current address and snail-mail him some questions.
-
- Good luck, and 73 de W5EZM, "A.C." in Houston
-
-
-
- Shel Darack (dara@physics.att.com) wrote: : Greg Danylchenko
- (ac742@FreeNet.Carleton.CA) wrote:
-
-
- : : I am facing a posting in Saudi for a year. While Saudi is a prohibited
- : : country for Canadian Hams (probably for others as well), does anyone know
- : : if amateur radio exists within Saudi Arabia? If so any info would be
- : : appreciated.
- : : --
- : : Greg Danylchenko ac742@FreeNet.Carleton.CA
- : : VE3YTZ
-
- : Prohibited? You mean you can't have a QSO with a Saudi station?
- : We can. I've worked Saudi Arabia. There are Americans operating
- : there using a 7Z call and they have a US QSL manager. They are
- : quite active.
- : Shel Darack WA2UBK
-
-
- --
- A. C. Spraggins acs@sccsi.com
- South Coast Computing Services, Inc. w5ezm@sugarland.ampr.org
- 1811 Bering, Suite 100 (713) 917-5000
- Houston, TX 77057 (713) 917-5005 fax
-
- ------------------------------
-
- Date: Tue, 4 Oct 1994 14:36:19 GMT
- From: ehare@arrl.org (Ed Hare (KA1CV))
- Subject: Expose - Wouff-Hong
-
- Kenneth Grimm (grimm@alison.sbc.edu) wrote:
-
- : Sworn to secrecy, as I recall, the best that I can do is suggest that you
- : simply observe the physical shape of the Wouff-Hong and let your wildest
- : imagination conjure up possible ways in which this awful device might be
- : used to..... Ohhhh, it's just too awful to think about! Figure it out
- : yourself.
-
- Well, I must confess that over the years the exact method of its application
- has become lost to us. Many visitors have offered suggestions: using it as a
- club, cracking of the knuckles between the two halves and, well, a few
- suggestions a bit more colorful.
-
- If you ever get an opportunity to attend a Wouff Hong initiation, held only
- at ARRL State, Division or National Conventions, stay up until midnight and
- become a member of the Royal Order.
-
- Now, although I am sworn to secrecy, I am among friends here, so... in most
- of the ceremonies I have seen, there are chairs lined up on either side of
- the center aisle, and a row of chairs all across the back of the room. Sit
- in any chair you like, but don't sit in the two chairs on the back that are
- in the center aisl.... no, I have said too much. I better go figure out how
- to cancel this posting....
-
- 73 from ARRL HQ (in case I can't figure out how to kill a post), Ed
-
-
- : 73,
- : Ken
- : ___________________________________________________________
- :
- : Kenneth D. Grimm K4XL
- : grimm@alison.sbc.edu
- : ___________________________________________________________
-
- --
- Ed Hare, KA1CV, ARRL Laboratory, 225 Main, Newington, CT 06111
- 203-666-1541 ehare@arrl.org
-
- ------------------------------
-
- Date: 4 Oct 1994 01:03:40 GMT
- From: mikest@comtch.iea.com (Mike Stewart)
- Subject: FOR SALE: C64/VIC20 Combo
-
- ** FOR SALE ** -- Commodore 64, vic 20 & accessories --
-
- $50 Commodore 64 + Commodore VIC 20
- $25 koala sketch pad
- $35 1541 floppy disk drive
- $3 1650 300 bd autodial/answer modem
- $25 Cardco Plus Printer interface
- $25 tape drive
- $10 3k ram expansion cartridge (VIC20)
- software for each.
- + bbs software for c64
- + printshop
- + many games
- ====
- $173
-
- or .. $125 + shipping takes it all
-
- Run a bbs or play its many games. There's lots of software
- out there for the 64. Great for HAM radio packet users.
- Good color graphics. Great for kids to learn on. The VIC 20
- would be ideal for a younger child that wants to learn while
- an older child or adult learns to use the 64.
-
- Please contact mike KB7PNT (mikest@comtch.iea.com) with inquiries.
-
-
- ------------------------------
-
- Date: Mon, 03 Oct 94 20:41:38 EST
- From: lee@tosspot.sv.com (Lee Reynolds)
- Subject: IC-211 accessories wanted
-
- Anyone have any bits'n'bobs for the Icom IC-211 they may want to sell?
-
- If so, please email me at lee@tosspot.sv.com.
-
- Thanks,
- Lee.
-
- ------------------------------
-
- Date: Mon, 03 Oct 94 20:43:04 EST
- From: lee@tosspot.sv.com (Lee Reynolds)
- Subject: IC-751 wanted
-
- Anyone have an Icom IC-751 they'd care to sell?
-
- Please email me at lee@tosspot.sv.com.
-
- Thanks,
- Lee.
-
- ------------------------------
-
- Date: 4 Oct 1994 00:20:55 GMT
- From: ad779@detroit.freenet.org (JOHN HUGHES)
- Subject: Interference from computer causing receive problems
-
- >>What kind of coax is he using?
-
- Decent stuff, or Rat Shack RG-58? The better the shielding on the coax,
-
- the less signal infiltration you'll get.<<
-
- Any recommendations?
-
- ------------------------------
-
- Date: 3 Oct 1994 18:44:49 -0500
- From: dave@flowserver.stem.com (David Adams)
- Subject: noise bridge kits?
-
- Greetings! I'm putting together some hf antennas, and due to their
- nature, I am unable to tune them manually (tuning rig, seeing how far
- off I am and adjusting). What I really need is a noise bridge or SWR
- analyzer. Does anyone out there in netland know of any kit
- manufacturers that make these instruments. I'm broke and can't
- really afford the preassembled variety currently available. Any help
- would be appreciated.
-
- 73 de dave, n9uxu
-
- ------------------------------
-
- Date: 4 Oct 94 13:58:47 GMT
- From: FEEBACK@medics.jsc.nasa.GOV (FEEBACK, DANIEL L. / KRUG-TLS)
- Subject: OCTOBER 9 BALLOON LAUNCH
-
- Near Outer Space Transportation System (NOSTS-1)
- Balloon Launch - Clear Lake Amateur Radio Club
- Sunday - October 9, 1994
-
- Clear Lake Amateur Radio Club announces the maiden flight of NOSTS-1
- (Near Outer Space Transportation System- 1) utilizing a 12 foot diameter
- helium balloon as the launch vehicle. NOSTS-1 is an amateur radio
- experiment which will carry various payloads in a package weighing
- less than 6 pounds. All interested hams are invited to participate.
-
- The payload consists of:
-
- * 2 meter packet on 145.75 MHz simplex - the node name for digipeating is
- NOSTS-1, the mailbox callsign is KJ5MX-6, the beacon IDs as KJ5MX-3.
-
- * 10 meter voice beacon on 28.322 MHz Double Side-Band with an ID interval
- of 33 seconds.
-
- * Beacon on 29.420 MHz sending "CW" beeps that correspond directly to the
- outside temperature. At 70 degrees Fahrenheit the beep rate is
- approximately 200/min. To calculate temperature from beep rate the
- formula: Temp(degrees F) = [0.56853 X (Beep rate)] - 38
- The antenna for this device is a 2 meter dipole cut to enhance the 5th
- harmonic at 147.10 MHz for direction finding purposes.
-
- * Beacon on 224.72 MHz for direction finding purposes only.
-
- * Potential secondary payloads may include a 10 GHz gigaplexer beacon and
- a 2 meter uplink (147.435 MHz), 70 cm downlink (440.95 MHz) FM repeater.
- Final announcements on these payloads will be made on launch day.
-
- The Clear Lake Amateur Radio Club Balloon Launch Team wishes to thank
- Andy MacAllister, WA5ZIB and members of the South Texas Balloon Launch
- Team for assistance, advice, and use of 220 MHz beacon & 29.420 MHz fireball
- transmitter for this launch.
-
- An informal simultaneous HF (7.155 Mhz or up for QRM) and UHF (442.750 SE
- Houston | 444.275 MHz NW Houston repeaters) net will be held at 7PM on
- Saturday October 8th for final updates. The 40 meter net on the same
- frequency will be active immediately before and during the flight.
-
-
- The launch site will be west of the Houston area and the direction of
- flight will be from west to east. Coverage may extend several states
- on some modes and even coast to coast if 10 m propagation is favorable.
- Reception reports including frequency, time, and YOUR location are
- encouraged.
-
- For additional information and reception reports contact:
-
- Dan Feeback, KJ5MX - (713) 286-0230 [Home] - (713) 483-7189 [Work]
- Internet: feeback@medics.jsc.nasa.gov
- Packet: KJ5MX@KA5KTH.#SETX.TX.USA.NOAM
- or
-
- John Maca, AB5SS - (713) 488-2025 [Home] - (713) 244-7774 [Work]
- Internet: jmaca%jscdk@jesnic.jsc.nasa.gov
- Packet: AB5SS@KA5KTH.#SETX.TX.USA.NOAM
-
- ------------------------------
-
- Date: Mon, 3 Oct 1994 03:01:36 GMT
- From: sam.lipson@ctobbs.com (Sam Lipson)
- Subject: Pacificon 94 10/21-23/94
-
- PACIFICON 94 comes to the Concord Hilton Hotel on 21 - 23 October
- 1994.
-
- This year's PACIFICON promises to be bigger and better than before.
- This year's theme, "HAM Radio - Your on-ramp to the Information
- Highway" will be apparent in much to be seen and to do.
-
- There will be over 30 technical sessions (beginning at 2 pm Friday)
- covering topics such as EM fields and your health, personal safety,
- working with public safety agencies, fire safety for the home, the New
- HAM forum, APRS, computer control of HAM equipment, Beginning HF,
- radio control and amateur radio, QRP technology, Lasers, GPS, visual
- programming, antennas, SQUIRT - a new concept in satellites, Internet
- as well as the ARRL Forum.
-
- The Saturday night banquet, which always sells out, will feature Steve
- Odum as speaker. The faire is either Prime Rib, Chicken or
- Vegetarian. Following the banquet, at the special hour of midnight,
- the mystic Wouff-Hong ceremony will be held. On special occasions,
- such as PACIFICON 94, there is an opportunity to join this select
- society. The only requirements are that you be a currently licensed
- amateur and be a member of the American Radio Relay League. You can
- join the ARRL at the convention. There is no cost to be come of
- member of the Wouff-Hong society and you will receive a handsome
- certificate suitable for framing.
-
- The very popular swap meet will take place Saturday morning and there
- will be a T-hunt on Sunday. Other events include the Foot and Fanny,
- where you have the opportunity to send Morse code using a telegraph
- key that is about 20 times the normal size. You can send using your
- foot or ... well, you get the idea. Certificates will be awarded for
- those who can send simple words like "Mississippi" and "Tennessee."
-
- VE exams will be held on a walk-in basis from 9:00 am to 1:00 pm both
- Saturday and Sunday. Bring your license, any CSCEs and a photo copy
- of each as well as two forms of ID.
-
- PACIFICON 94 also gives you the opportunity to see the latest in
- amateur and amateur related equipment n the exhibit hall and in the
- hallways of the convention.
-
- Also, just for showing up and depositing your ticket stub into the
- drum, you become eligible for one of many door prizes and the grand
- prize. This year's grand prize is a Yeasu FT-840 HF transceiver with
- power supply. The banquet grand prize is an Alinco DR600T dual band,
- VHF/UHF transceiver. Other grand prizes include a Yeasu FT11R 2 meter
-
- handheld, a Kenwood TH78A dual band handheld, a Kenwood TH22AT 2
- meter handheld, an ICOM T21 2 meter handheld, an ICOM W2A dual band
- handheld, an Alinco DJ-G1T 2 meter handheld and a Kantronics KAM Plus
- TNC.
-
- For tickets, mail your request to (pick up at the door):
- PACIFICON
- P.O. Box 272613
- Concord, CA 94527
-
- Tickets are $3.00 in advance ($5.00 at the door)
-
- For further information call (510) 932-6125.
-
- 73, de Sam, KE6BPB
- Pacificon 94 Committee
-
- ------------------------------
-
- Date: Tue, 4 Oct 1994 04:31:55 GMT
- From: steve@vigra.com (Steve Haehnichen)
- Subject: Radio Shack Violation
-
- -=> On Mon, 3 Oct 1994 15:20:33 GMT, dearnshaw@worldbank.org said:
-
- >> In all the stores I've been in the HTs have been behind the counter or
- >> under glass, so you would have to ask to get your hands on it. (I
- >> have not tried asking in every store to see if they'd let me transmit
- >> without at least inquiring after my license, though.)
-
- > I'd be curious to know what the rules (Laws) are: Do you need a
- > licence to purchase, or simply to operate? (My gut feeling is that
- > you only need a licence to operate - but I'd love to be proved
- > wrong!) ie, Is Radio Shack required by law to check whether you have
- > a licence before selling the handitalkie??
-
- I'm pretty sure that radio transceivers are one of the few remaining
- "personal-resposiblity" items left in the US. :-)
-
- You can pretty much own (or build) whatever you want, but the *use* of
- it is regulated. For example, you can legally modify your radio to
- transmit out of band, but you break the law the moment you transmit
- there (outside of an emergency).
-
- I, for one, am glad it's this way. I had my FT-530 for about three
- months while I waited for my license to arrive. Since there was
- little else to do with it other than read the manual, I got to know
- all the features of the radio pretty well.
-
- I bought it from the local HRO, before I had even taken the first
- exam! They got a pretty good feel for what I was up to, and didn't
- have any problem with selling me the radio.
-
- -Steve
-
- Steve Haehnichen Vigra, Inc. San Diego, CA
- steve@vigra.com (619) 597-7080 x116 Fax: (619) 597-7094
-
- ------------------------------
-
- Date: 3 Oct 1994 23:10:49 GMT
- From: phil@hansen.ncd.com (Phil Graham)
- Subject: Where to find 1.2 gig rig?
-
- 1.2 GHz gear is available from:
-
- Kenwood Mobile Single Band
- Mobile Tri-Band (aka 2M, 70cm, and 23cm)
- Base (FM, SSB, CW Tri-band)
-
- ICOM HTs Single/Dual/Tri-band
- Mobile Tri-band
- Base (FM, SSB, CW Single Band)
-
- Standard HTs Dual Band
-
- Yeasu HTs Single Band
- Mobile Dual Band (70cm, 23cm)
-
-
- If you want a transverter try Down East Microwave (207-948-3741), they have
- kits as well as assembled transverters, power amps and pre-amps. I have two
- of the amps and pre-amps on my repeaters as well as a 2M to 1.2 GHz
- transverter for use with my service monitor (gives me a 1.2 GHz service
- monitor)
-
- Phil
- de kj6nn
-
-
-
- In article <1994Oct2.005814.12733@ultb.isc.rit.edu>, jdc3538@ultb.isc.rit.edu (J.D. Cronin) writes:
- |> OK, 1.2 gig HT's work fine. But who makes them? Are there
- |> any transverters from HF or 2-meters? 1.2 gig equipment is
- |> mighty scarce around here (Rochester, NY). Apparently what
- |> little stuff there is circulates around the local VHF club
- |> (a great way to get other people into it).
- |>
- |> 73...Jim N2VNO
-
- ------------------------------
-
- Date: 4 Oct 94 13:08:56 GMT
- From: William=E.=Newkirk%Pubs%GenAv.Mlb@ns14.cca.rockwell.COM
- Subject: Why is aviation COM VHF *amplitude* modulated?
-
- >I'm going to call the local FAA office and speak with a tech to get
- >the definitive answer.
- >Jeff NH6IL
-
- don't be surprised if you get told the same things you've been told here by
- pilots, aircraft techs, radio makers, etc....of course, if there's something
- new, pass it on...(ITU agreements? International rescue agreements? Others?)
-
- ITU shindig in town on navigation receivers (but those are mostly FM so
- they're OK, right??) and digital broadcasting..and how to keep 'em from
- interfering, etc.
-
- bill wb9ivr
- rockwell avionics/collins
-
- ------------------------------
-
- Date: Mon, 3 Oct 1994 21:32:52 GMT
- From: steve@vigra.com (Steve Haehnichen)
- Subject: Yaesu FT530 power plug
-
- -=> On Thu, 29 Sep 94 20:38:13 EDT, Tim_Shearer@f110.n157.z1.gatenod.aldhfn.org (Tim Shearer) said:
-
- > Regarding the Yaesu FT-530 HT:
- > I have not been able to find a match to the coaxial power connector
- > on the top of this radio. My Radio Shack either doesn't stock it or
- > was out of stock. If anyone knows where this plug can be obtained at
- > *reasonable* cost please let me know
-
- I bought a Yaesu plug and lead from HRO, for some $7 or so.
-
- It turns out that the same power plug is commonly used on Panasonic
- portable CD players (and maybe others). You may find the plug in some
- of the cigarette-lighter power adapter kits for CD players.
-
- Last I checked, Radio Shack indeed did not carry that connector. They
- probably will before long, since they seem to have all the other ones,
- and they will need to add it to their CD connector kits.
-
- -Steve
-
- Steve Haehnichen Vigra, Inc. San Diego, CA
- steve@vigra.com (619) 597-7080 x116 Fax: (619) 597-7094
-
- ------------------------------
-
- Date: Mon, 3 Oct 1994 18:33:50
- From: brett_miller@ccm.hf.intel.com (Brett Miller - N7OLQ)
-
- References<36h4nn$le4@dartvax.dartmouth.edu> <Cx07AA.oB@rci.ripco.com>, <36nq1k$me3@jupiter.planet.net>
- Subject: Re: RadioMap service expands into OH, PA, MO (and IL, IN, MI,
-
- In article <36nq1k$me3@jupiter.planet.net> billsohl@earth.planet.net (Bill Sohl Budd Lake) writes:
- >Glen Roberts (glr@ripco.com) wrote:
- >: Kenneth E. Harker (Kenneth.E.Harker@Dartmouth.Edu) wrote:
- >: : This is a blatant commercial advertisement and has no place on the
- >: : USENET. Please do not support the encroachment of commercialism and
- >: : junk mail on the newsgroups.
-
- >: I think his idea is pretty cool... unique... and I like reading about it,
- >: blantently commercial or not.
-
- >I agree and I'll add a note that the internet has long ago crossed
- >the line into commercialization. Best just accept it, although Ken
- >is certainly entitled to his opinion.
-
- The National Science Foundation is no loger in control of sections of the
- internet and as a result, there are no official rules against advertising on
- the net. The only thing regulating advertising now are the readers who get
- upset when they see ads. If the ad is directly related to the newsgroup and
- is presented in an informative, no-hype, manner, then I welcome this
- information.
-
-
- Brett Miller N7OLQ brett_miller@ccm.hf.intel.com
- Intel Corp.
- American Fork, UT DoD#1461
-
- ------------------------------
-
- Date: 4 Oct 1994 00:44:59 GMT
- From: grizzarv@indirect.com (Robert V. Grizzard)
-
- References<36nhj1$lq3@jupiter.planet.net> <Pine.SUN.3.90.941003013741.25624G-100000@access1.digex.net>, <36p2u5$1jn0@yuma.ACNS.ColoState.EDU>
- Subject: Re: 6 meter AM Activity
-
- Galen Watts (galen@picea.CFNR.ColoState.EDU) wrote:
- : In article <Pine.SUN.3.90.941003013741.25624G-100000@access1.digex.net> Tony Stalls <rstalls@access1.digex.net> writes:
- : >
- : >Don't hold me to this, but I hear that 50.4 is the accepted AM calling
- : >frequency. (I already have an 8400 xtal for the Scout.) Stay in touch
- : >and maybe we can hook up on 6 meters this Fall.
- : >Tony
-
- : Just be sure you post something a few days ahead. I'm interested in ANY
- : activity above 50 MHz (except those pesky 2m repeaters).
-
- : Galen, KF0YJ, DN-70
-
- Sign me up too. I don't own any 6M AM gear yet, but if push comes to
- shove I can find a use for that child^H^H^H^Hitizen's band radio in the
- closet.
-
- de Rob KG7YY
-
- ------------------------------
-
- Date: Tue, 4 Oct 1994 14:27:49 GMT
- From: ehare@arrl.org (Ed Hare (KA1CV))
-
- References<Bgz3wcg.jsanfilippo@delphi.com> <1994Sep26.150322.26986@ucl.ac.uk>, <CwtB89.JCu@indep1.chi.il.us>
- Subject: Re: CABLE TV LEAKAGE
-
- Clifton T. Sharp (clifto@indep1.chi.il.us) wrote:
-
- : In article <1994Sep26.150322.26986@ucl.ac.uk> zcapl34@ucl.ac.uk (Redvers
- : Llewellyn Davies) writes:
-
- :> On a similer vein... Cable TV in the UK uses frequencies from 40Mhz to
- :> 300Mhz. Under British law... If they are leaking onto our frequencies
- :> from the pipe it is thier responsibility. If we interfere with them
- :> (even TX on their fundimental) it is their responsibility. Is that the
- :> same in the US ?
-
- : Legally, yes. In practical terms, just _try_ to get them to admit that
- : it's their responsibility. Succeeding at that, just _try_ to get them to
- : do something about it before the neighbors pin your coax, bomb your tower,
- : slash your tires and kidnap your kids.
-
- Some cable companies try to claim that they are only responsible for leakage
- OUT of their system. Part 76.605 requires that cable companies deliver
- specific quality of service to their customers. Specifically, 76.605(a)(8)(i)
- requires that in a standard system, the cable company deliver a signal that
- has at least a 51 dB video carrier to "coherent disturbances" ratio. While
- this level of signal could cause just perceptible interference, it is a
- decent-enough picture that most neighbors won't complain.
-
- If anyone is having a problem with CATVI, send a 9X12" SASE with 4 units of
- postage to the ARRL Technical Department Secretary. Ask for the "EMI/RFI
- Package" and "EMI/RFI - CATV." The CATV package includes a reprint of the
- article I wrote for Communications Technology -- the journal of the Society
- of Cable Television Engineers. Your local cable company will recognize this
- publication and will give credence to the words therin.
-
- If you have any questions after you have read the material, contact me here
- at HQ. I can usually get back to you within a few days to offer some
- additional help.
-
- 73 from ARRL HQ, Ed
-
- --
- Ed Hare, KA1CV, ARRL Laboratory, 225 Main, Newington, CT 06111
- 203-666-1541 ehare@arrl.org
-
- ------------------------------
-
- End of Info-Hams Digest V94 #1094
- ******************************
-