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- From: raredata@geocities.com (R. Harrison)
- Newsgroups: alt.radio.pirate,alt.answers,news.answers
- Subject: Low Power Broadcasting FAQ (Frequently Asked Questions)
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- X-Last-Updated: 1997/12/31
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- Archive-name: radio/broadcasting/low-power-faq
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- Last-modified: 1997.12.31
-
- Low Power Broadcasting FAQ (Frequently Asked Questions)
- copyright 1994-1997 by Rick Harrison
-
- NOTICE: It is not the author's intention to advocate unlawful
- activity. If the broadcasting regulations in your country are too
- restrictive for your liking, you should try to get them changed
- or move to a less repressive environment. If you choose to disobey
- the regulations, you must be willing to face the consequences.
-
- The web version of this document contains more information, is updated
- more often, and is illustrated with graphics and tables. Its URL is
- http://www.geocities.com/Athens/5383/lowpower.html
-
-
- -------------------------------
- What is low power broadcasting?
- -------------------------------
-
- Some individuals and small groups operate low power radio or
- TV stations as a hobby, or as a way of spreading some commercial,
- religious or political message. Some volunteer groups operate
- unlicensed stations with a "public access" format, allowing
- virtually anyone to get on the air for an hour or two each week
- and broadcast any sort of material that they feel passionate about.
-
- Unlicensed stations are known by such terms as "free radio" and
- "micropower broadcasting." Some of them operate within the legal
- guidelines for unlicensed stations, while others use a bit more
- power than the rules allow.
-
-
- --------------------------------
- Is low power broadcasting legal?
- --------------------------------
-
- This depends on what country you are in. The situation varies from
- place to place, so you should check with a lawyer or with the agency
- that regulates broadcasting in your part of the world before turning
- on any transmitter. Don't rely entirely on web pages or usenet
- newsgroups for such critical information.
-
- In some European countries (e.g. the Netherlands), you can be arrested
- for merely possessing an unlicensed transmitter. In Ireland,
- unlicensed broadcasting is unlawful but stations that don't cause
- interference are seldom prosecuted. In Taiwan, the authorities have
- recently threatened to imprison unlicensed broadcasters. Indonesia
- generally tolerates unlicensed broadcasts on shortwave. Canada and
- Japan have made it possible for people to get licenses for very low
- power FM stations if the licensees promise to provide programming that
- is not available from mainstream outlets.
-
- In the United States, Title 47 of the Code of Federal Regulations
- (Part 15, subpart C) indicates that unlicensed broadcasting is limited
- to microscopic power levels. The power limit for unlicensed FM
- transmissions is a signal strength of 250 microvolts per meter,
- measured 3 meters from the transmitting antenna. At this power level,
- stereo reception with a good signal to noise ratio is only possible
- within a 100 foot radius, and an average car radio can barely detect
- the signal at a distance of 100 meters. On the AM band, the limit is
- 0.1 watt and an antenna system no more than 3 meters long; this
- provides a range of 2 or 3 city blocks for cheap receivers, farther
- for high-quality radios.
-
- Some have argued that the strictness of these regulations violates the
- US Constitution (footnote 1) and the UN Declaration of Human
- Rights.(footnote 2) Others have said that the federal government does
- not (or should not) have jurisdiction over low-power transmissions
- that do not cross state lines. There have been many court battles over
- the FCC's regulations, and no doubt there will be many more.
-
- Apart from the Part 15 rules mentioned above, legal unlicensed options
- include carrier current transmission (using the power lines as an
- antenna system); cable FM broadcasting (working in conjunction with
- your local cable TV system); and burying special "leaky" coaxial cable
- to use as an AM transmitting antenna on privately owned land. Panaxis
- and LPB can provide more information about legal options.
-
- * footnotes
-
- 1. From the Bill of Rights: "Congress shall make no law respecting
- an establishment of religion, or prohibiting the free exercise
- thereof; or abridging the freedom of speech, or of the press..."
-
- 2. Article 19: "Everyone has the right to freedom of opinion and
- expression; this right includes freedom to hold opinions without
- interference and to seek, receive and impart information and ideas
- through any media and regardless of frontiers."
-
-
- --------------------------------------------
- What equipment do I need to start a station?
- --------------------------------------------
-
- For a radio station, you will need audio sources (tape players, CD
- players, microphones, etc.), an audio mixer, a transmitter, a coaxial
- cable (usually RG-8 or RG-58/U) to carry the signal from your
- transmitter to your antenna, and an antenna.
-
- A piece of equipment called a compressor/limiter is also very
- important. It reduces the level of sudden loud sounds so that they
- don't over-drive the transmitter, and brings up the volume of quiet
- sounds so that people riding in cars and listening in other noisy
- environments can hear them. Radio stations that operate without a
- compressor/limiter sound very amateurish and run a higher risk of
- interfering with stations on nearby frequencies.
-
- For television, you also will need video sources (cameras, videotape
- players, character generators, etc.) and a video switcher.
-
-
- ------------------------------------------------------
- How much power should I use to get a range of X miles?
- ------------------------------------------------------
-
- This is the most frequent question, and many newbies want a simple
- answer. There is no simple answer. The distance at which your signal
- can be heard will vary from listener to listener, depending on their
- equipment and location. In fact, many elements affect your range:
-
- * the transmitter power
- * the transmit antenna's height and effectiveness
- * local terrain (hills, large buildings, etc.)
- * interference from distant stations on the same channel
- * splatter from local stations on adjacent channels
- * the height and effectiveness of the listener's antenna
- * the sensitivity of the listener's receiver
- * amount of "static" at the listener's location
-
-
- predicting the range of an FM or TV signal
-
- On FM and TV broadcast frequencies, antenna height puts an upper limit
- on your range, regardless of power levels. (It is true that
- diffraction can extend your range slightly, and signals sometimes
- travel greater distances when atmospheric conditions are just right,
- but we will ignore these factors for the time being.) The distance
- from your antenna to the radio horizon is determined by this formula:
- distance in miles = 1.415 times the square root of the antenna height
- in feet.
-
- Now you see why FM and TV stations go to the expense of building
- antenna towers that are hundreds of feet high, or locate their
- antennas on mountain-sides that overlook the cities they want to
- serve.
-
- Of course, the formula assumes that the terrain is relatively flat.
- If the transmitting antenna is located at the top of a hill, its
- range might be better, but this depends on the direction in which the
- antenna radiates its energy (i.e. its vertical radiation angle). If the
- antenna shoots a lot of energy up into the sky (as some types of antennas
- tend to do), placing it in a higher location will not help much. You
- can see the effect of terrain on coverage by following this link to some
- low-power FM coverage maps ( http://www.bcradio.net/fmsrmap.htm ).
-
- [The web version of this FAQ contains more information on this topic.]
-
-
- ------------------------------
- Where can I get a transmitter?
- ------------------------------
-
- Below is a brief list of companies selling low power transmitters and
- transmitter kits.
-
- Note to newbies: To assemble these kits, you must be able to solder
- components onto a circuit board, and it helps if you know the
- difference between a resistor and a capacitor. If you haven't reached
- this stage of electronic know-how yet, consider buying some of the
- educational kits available from C & S Sales, 1245 Rosewood, Deerfield
- IL 60015, telephone 800-292-7711. Their electronic components course
- (item #ECK-10) might be especially helpful to newbies.
-
- Several web pages that will teach you how to solder are available:
-
- http://www.epemag.wimborne.co.uk/solderfaq.htm
- http://surf.pangea.ca/~rmiller/solder.html
- http://www-sgc.colorado.edu/itll/uvsoder.html
-
- * sources of transmitters:
-
- ABC FM
- web page: http://indigo.ie/~alinton/rigindex.htm
- e-mail: ndls@bigfoot.com
-
- This company sells low power FM exciters, stereo coders, and
- RF amps. Apparently located in Ireland.
-
- ---
-
- DC Electronics
- P O Box 3203
- Scottsdale AZ 85271
- phone 800-423-0070
-
- The Stereocaster is an FM stereo transmitter kit based on the BA1404
- chip with a few milliwatts of output power ($29.95 plus $4 S & H). It
- has a smooth fine-tuning control which makes it easy to get on the
- exact frequency you want, and a voltage regulator which improves
- stability. It has been reported that the signal strength can be
- increased by replacing the supplied output transistor with an MRF581.
- The Stereocaster is more stable than Ramsey's famous FM-10.
-
- New items: a stereo transmitter kit with PLL tuning, and some FM
- antenna kits.
-
- ---
-
- DSchmidt Technologies
- 191 Madera Ave
- Ventura, CA 93003
- fax 805-676-1092
- web page: http://www.silcom.com/~dschmidt
-
- Offers a digital frequency readout for FM transmitters, and two low
- power Panaxis transmitters, plus assorted parts and gadgets. The
- DTMF-activated relay could be used for remote control of transmitters
- in various locations by sending tones to them via telephone lines or
- radio links.
-
- ---
-
- L.D. Brewer
- 10740 N. 56th St., Suite 186
- Tampa FL 33617
- phone 1-800-886-8023 or 1-813-960-8023
- web page: www.ldbrewer.com
-
- The L D Brewer company sells FM transmitter kits, antennas and supplies
- from a variety of companies, and will assemble and repair kits.
-
- ---
-
- LPB Inc.
- 28 Bacton Hill Road
- Frazer PA 19355
- phone 610-644-1123
- fax 610-644-8651
- web page: members.aol.com/lpbinc/
-
- Since 1960, LPB Inc. has been a source of legal low power broadcast
- equipment, including carrier-current transmitters, radiating coaxial
- cable equipment, and other such gear. They ask their customers a lot of
- questions and clearly want to avoid selling equipment to rule-breakers.
-
- ---
-
- North Country Radio
- PO Box 53
- Wykagyl Station
- New Rochelle, NY 10804-0053
- phone 914-235-6611
- fax 914-576-6051
- web page: www.northcountryradio.com
-
- Items offered include a low power FM transmitter that (thankfully) does
- not use the BA1404 chip, and some TV transmitters for use by licensed
- amateur radio operators. New item: an AM transmitter kit.
-
- ---
-
- Panaxis Productions
- P O Box 130
- Paradise CA 95967-0130
- (send $2 for catalog)
- web site: www.panaxis.com
-
- This company provides many interesting books and kits. They offer a
- half-watt mono FM transmitter with excellent technical specs, which can
- be combined with their stereo generator to build a high-quality low power
- station (more than $200 for the two kits). They also have some AM gear.
- Panaxis kits might not be suitable for absolute beginners; you should
- have some experience in circuit assembly before you tackle these.
-
- ---
-
- Progressive Concepts
- P.O. Box 586
- Streamwood, IL 60107
- phone 630-736-9822
- fax 630-736-0353
- web page: http://home1.gte.net/dgagl/progressive/
-
- FM transmitters, antennas, low-pass filters, microphones and audio
- mixers, SWR meters, studio to transmitter links, etc.
-
- ---
-
- Ramsey Electronics
- 793 Canning Pkwy
- Victor NY 14564
- phone 716-924-4560
- web site: http://www.ramseyelectronics.com
-
- Ramsey kits have well-written instruction manuals, and most of the
- circuit boards have lots of wide-open space which makes modifications
- easy. The company also has a good reputation for service. On the
- negative side, they only offer plastic cases for their broadcasting
- kits (transmitter circuits generally perform better in metal enclosures).
-
- The FM-10A is an FM stereo transmitter kit ($34.95 plus shipping) with
- a few milliwatts of output power; it is based on the BA1404 integrated
- circuit. Several people have posted messages in alt.radio.pirate
- indicating that the FM-10A has a problem with frequency drift and must
- be adjusted frequently; others have said they do not have this problem.
- The FM-25 kit, which has PLL tuning for greater stability, costs about
- $130.
-
- Ramsey also offers a low-budget AM transmitter and a more expensive
- AM transmitter that has PLL frequency control. The cheaper AM-1 kit is
- not very good, in my opinion; it tends to drift and the audio quality is
- poor.
-
- ---
-
- R. Scott Communications
- 6972 Larkspur Road
- Sooke, B.C.
- Canada, VOS-1NO
- phone 250-642-2859
- fax 250-642-7742
- e-mail: kscott@pinc.com
- web page: http://www.sasquatch.com/~zane/catalog.txt
-
- A source of fully assembled FM transmitters with PLL frequency control
- that (according to their catalog) meet FCC and Canadian government
- standards, from 20 millwatts to 110 watts. Antennas too. Tech support
- by phone; one year parts and labor guarantee.
-
- ---
-
- Veronica FM
- 18 Victoria Street
- Bradford
- West Yorkshire BD13 1AR
- United Kingdom
- phone 01274 816200
- web site: http://www.legend.co.uk/~veronica/
-
- Antennas, audio processors, and FM transmitters (kits and assembled).
- People who've experimented with several brands have reported on the 'net
- that Veronica equipment is very well designed.
-
-
- ----------------------------
- How do I select a frequency?
- ----------------------------
-
- Most receivers with digital tuning will only lock onto signals that
- are on standard broadcast frequencies. In the US, AM stations are at
- 10 kHz intervals, ranging from 540, 550, 560 ... to 1700, and FM
- stations are spaced at 0.2 MHz intervals, ranging from 88.1, 88.3 ...
- to 107.9 MHz. (In Europe, AM stations are spaced at 9 kHz intervals.)
-
- Do not use an out-of-band frequency; they are reserved for other
- services. (For example, the frequencies just below 88 MHz are used for
- TV broadcasts, and the frequencies just above 108 MHz are used for
- aircraft navigation and communications.)
-
- Make a survey of the band you are planning to use. Get some graph
- paper or notebook paper and make a list of all the channels. Listen
- during the day and at night, making a note of what station(s) you can
- hear on each channel. Use a good receiver with digital tuning and a
- decent antenna, not some cheap piece of junk clock-radio or dime-store
- pocket radio. Repeat this band-scanning process several times during
- the course of a couple of weeks. (If you really want to be thorough,
- get a list of all the licensed stations in a 100-mile radius. You can
- get this data from trade publications, or on the web from the
- Station Location Page: http://www5.jagunet.com/~kodis/station.html )
-
- Now, sit down with your data and search for an appropriate channel.
- An appropriate channel for low power broadcasting is one that is not
- occupied by a local station, or by an often-audible distant station.
- The "first adjacent" channels -- the next channel above and
- the next channel below the one you're considering -- also must not be
- occupied by local stations, because they will "splatter" onto
- your signal, and your signal will splatter onto theirs. (An
- explanation of splatter is coming up later in this document.)
-
- If there is a TV station broadcasting on channel 6 in your area, it is
- unwise to operate on 88.1 or 88.3 MHz. TV receivers have broadband
- tuning circuits (a TV channel is 6 MHz wide, enough spectrum to hold
- 30 FM stations), so broadcasts at the low edge of the FM band can
- easily interfere with reception of channel 6.
-
-
- ----------------------------------
- What kind of antenna should I use?
- ----------------------------------
-
- The antenna is the most important part of a broadcast station; it has
- more effect on signal strength and station safety than any other
- component.
-
- Remember that YOUR ANTENNA CAN KILL YOU. Don't put up an antenna in a
- place where it could fall onto a power line, or a place where a power
- line could fall onto the antenna. Make sure your antenna mast is
- properly grounded so that if lightning strikes, the lightning will be
- conducted into the ground instead of into you. Falling off of roofs
- and ladders can result in injury.
-
- Factory-made antennas are available for the FM band; the 5/8-wave
- vertical antenna made by Comet has gotten good reviews on the 'net. If
- you need to build an antenna, the J-pole and the half-wave dipole are
- good choices, and lots of FM antenna plans are available on the
- world-wide web.
-
- If you are broadcasting on AM or shortwave, you will probably end up
- building your own antenna system. If so, you would be well advised to
- get a copy of The ARRL Antenna Book, which is published by the
- Amateur Radio Relay League and available from ham radio supply dealers
- and Amazon (www.amazon.com).
-
- * quick and dirty antennas
-
- The following types of antennas can be built quickly and cheaply, and
- will serve to get you on the air when you first start out. As you
- learn more, you will want to upgrade to better antennas.
-
- shortwave
-
- For shortwave broadcasting, a horizontal dipole works well enough. Cut
- two pieces of un-insulated copper wire; the length of each piece will
- be 234 feet divided by your frequency in MHz. Example: for 6950 kHz,
- each element will be (234/6.950=) 33.7 feet long, and you will need
- two trees or other support structures about 67 feet apart. Solder one
- element to the center conductor of your coaxial feedline, and solder
- the other element to the outer conductor (shield) of the co-ax. (Note:
- the solder joints cannot bear the weight of the cable; loop the cable
- once over an insulator and provide some "strain relief".) Make a
- little loop at the free end of one element, and tie a long piece of
- string to that loop. Tie a small, heavy object (such as a lead fishing
- weight) to the other end of the string. Throw the weight or use a
- slingshot to launch it up into the branches of a tree so that it goes
- over a branch and comes back down to earth; then hoist up that half of
- your antenna. (Suggestion: don't hit yourself in the head with the
- weight.) Repeat the process for the other element.
-
- AM
-
- In AM broadcasting, a vertical section of TV antenna mast, 10 or 20
- feet tall, provides a quick antenna.
-
- The center conductor of the coaxial cable from your transmitter is
- connected to the bottom of this vertical mast; the base of the mast
- sits on an insulator which sits on the ground. If the vertical
- radiator is made of several sections of antenna mast, make sure the
- sections are electrically connected -- try screwing some self-tapping
- sheet metal screws into the joints. Obviously the mast will not stand
- up by itself; use nylon rope or other non-metallic materials to
- support it. The outer conductor (shield) of the coaxial cable is
- connected to a set of "ground radials," which are pieces of copper
- wire radiating out from the base of the antenna like spokes from the
- hub of a wheel. (The radials are not connected to the vertical
- radiator.) The radials can be buried a few inches below the surface
- for a permanent installation. "Beware the lawnmower."
-
- This antenna is only a tiny fraction a wavelength high, therefore it
- will not be a very efficient radiator. There are ways to improve the
- efficiency slightly (loading coils, capacitance hats, etc.) -- study
- the ARRL Antenna Book and visit the Medium Wave Alliance web site
- ( http://www.geocities.com/ResearchTriangle/Lab/1635/equip.html ) for
- more information.
-
- [For those who use 1 watt or less, the web version of this FAQ
- contains a section called "getting every milliwatt to radiate."]
-
-
- -----------------------------------------------
- How can I avoid interfering with other signals?
- -----------------------------------------------
-
- No transmitter puts out a pure signal. In addition to the main
- signal, there will be harmonics and spurs. These impurities really
- can interfere with other signals. So please, do yourself and your
- colleagues a favor and make your signal as clean as possible!
-
- Harmonics are found at multiples of the main frequency. For example,
- an FM transmitter tuned to 100.1 MHz will also be emitting weaker
- signals at 200.2 MHz, 300.3 MHz, and so forth.
-
- Spurs (called "sprogs" in Britain) occur at unpredictable frequencies.
- For example, if your transmitter has PLL tuning and uses a 4 MHz
- crystal reference oscillator in the circuit, there might be some
- mixing of signals in the circuit and you might find a spur at 4 MHz
- above and/or below your main frequency. Spurs are especially
- dangerous because it is hard to predict what frequency they will be on
- or how powerful they will be. The only way to "see" them is with an
- expensive piece of test equipment called a spectrum analyzer. (In
- major cities, you may be able to rent a spectrum analyzer, but it
- might be better to spend the money on a filter; see below. You can
- see spectrum analyzer displays of some low power FM transmitters'
- spurs and harmonics on the DSchmidt Technologies web pages.)
-
- There is no way to completely eliminate spurs and harmonics; they are
- a fact of life in radio-frequency circuits. Broadcasters have an
- obligation to reduce the intensity of these "spectral impurities" so
- that they do not have any effect on the rest of the world.
-
- One step you can take is to install an external lowpass filter or
- bandpass filter between your transmitter and antenna. If you're
- transmitting with more than half a watt of power, you should do this.
- A lowpass filter allows signals below a certain frequency to pass
- through, but frequencies above that cutoff point are reduced in
- intensity; the amount of reduction increases as the frequency gets
- farther from the cutoff point. A bandpass filter reduces the
- intensity of signals above and below its frequency range.
-
- Splatter is another form of interference. When you try to tune in a
- station and you hear some hissing and harsh sputtery noises from
- another station on a near-by frequency, that's splatter. Splatter has
- a variety of causes including excessively high level of audio fed to
- the transmitter (over-modulation) and poor choice of operating
- frequency.
-
- Splatter is also more of a problem in areas close to one of the
- transmitters, where that rig's signal is much stronger than the one
- being splattered on (the splatter-ee). This is why it's not a good
- idea to operate a pirate station with more than 1 or 2 watts of power
- in the middle of a densely populated neighborhood. Many of the
- complaints that caused the authorities to attack free radio stations
- in 1997 were inspired by splatter onto second adjacent channels. For
- example, an unlicensed station on 99.1 in Tampa, Florida splattered
- onto a licensed station on 99.5 MHz. Several people in the
- neighborhood of the unlicensed station's transmitter complained when
- they were unable to hear coverage of a football game on 99.5 one
- weekend.
-
- [The web version of this FAQ also discusses images, co-channel
- interference, and RF feedback in audio gear.]
-
-
- --------------------------------------
- How can I take phone calls on the air?
- --------------------------------------
-
- The question of getting phone audio on the air was raised in
- alt.radio.pirate in September, 1997. The following suggestions
- were given:
-
- DJ Bryce wrote: "Your best bet is the Radio Shack speaker-phone box.
- Its easy to use, simple to install and is a good cheap interface.
- Just tap off the speaker leads... and if you want to, pick up their
- 1:1 transformer for a buck or two, and that will clean up any hum or
- buzz. It works for many a commercial station that can't afford a
- Gentner or Telos."
-
- Bungalow Bill wrote: "My scanner will scan the 49 MHz range, where
- cordless phones operate. It has a headphone jack in the back of it,
- so I bought a simple patch cable that just takes 1/8 inch to 1/4 inch.
- Then I plug in the cordless phone, and tune the scanner to its
- frequency. When someone calls in, just up the volume on the mixer,
- and they're on! Simple, and elegant."
-
-
- ---------------------------------
- How can I avoid getting `busted'?
- ---------------------------------
-
- The easiest way to avoid a clash with the authorities is to stay under
- the power limit for unlicensed broadcasts. If you exceed that limit
- for some reason, you will probably get busted sooner or later, unless
- you lose interest and quit broadcasting first.
-
- * the hunter's tools
-
- When the authorities get around to sending one of their direction-
- finding (DF) vehicles into your area, it's easy for them to find your
- transmitter. Disguising your antenna or telling lies about your
- location on the air will not help you. Modern DF equipment quickly
- and efficiently leads the authorities directly to the source of your
- signal. Many broadcast engineers, ham radio operators, and avid radio
- listeners are also equipped with DF gear or have figured out ways to
- find transmitters by using receivers that have fairly directional
- antennas on them. For less than $400, you too can buy your very own
- DF equipment. ( http://www.agrelo.com/dfjr.html )
-
- * guerilla tactics
-
- Many people in the new microbroadcasting movement in the US frown on
- guerilla broadcasting tactics. They advocate broadcasting 24 hours a
- day with relatively high power levels from publicized locations, as a
- form of civil disobedience and a way to give legitimacy to the
- movement. They hope that a growing number of stations operating in
- this manner will inspire public support for microbroadcasting and will
- pressure the government into changing the regulations. So far, the
- government has responded to this "pressure" by forcibly confiscating
- transmitters from several of the more defiant stations. I think the
- microbroadcasting movement has over-estimated the amount of pressure a
- small group of people can put on a large government. Broadcasters who
- want to remain on the air rather than becoming martyrs for the
- movement might be well-advised to consider some guerilla tactics.
-
- Some "pirates" in Europe have used the following approach to avoiding
- the authorities: they put a battery pack, a transmitter, and a taped
- program on a roof-top or hill-top and leave it unattended during the
- broadcast. If the authorities find the transmitter, they cannot jail
- or fine the broadcaster -- unless they catch him when he comes back to
- retrieve his equipment, or find his fingerprints on the gear.
- Technically adept broadcasters have used timers to turn the
- transmitters on and off when the station personnel are at a safe
- distance, and have wired up motion detectors to turn off the
- transmitters when people get near them.
-
- Transmitting from locations that cannot easily be reached by the DF
- vehicles (islands, boats, forests, etc.) may also hold some promise.
- People have experimented with broadcasting from moving vehicles.
- Transmitting from a location where nobody can approach you without
- being seen will work, but the broadcaster must constantly keep a
- lookout.
-
- In major US cities where the broadcast bands are very crowded,
- unlicensed stations have set up informal agreements by which they
- share the few available channels. One station will operate on a
- channel on Friday nights, another will take it on Sunday afternoons,
- and so forth. This strategy has the side-effect of giving a little
- protection to the stations involved. The authorities would have to
- keep a DF vehicle in the area for an entire week or two if they wanted
- to track down all the stations using a frequency. Depending on what
- else they have on their agenda, they might not be able to invest that
- much time.
-
- * being busted
-
- So, what happens if the authorities catch an unlawful broadcaster?
- Like everything, it varies from country to country. In China, they
- probably shoot the broadcaster and bill his family for the bullet.
-
- In the US, the process normally (but not always) goes like this: The
- FCC becomes aware of a station. Two or three agents in a DF vehicle
- track down the station and measure the signal strength near the
- transmit antenna. Then they knock on the door and ask to inspect the
- station. If allowed in, they will attempt to get the station
- operator's identity, they will demand that the station be turned off,
- and they will ask that the transmitter be surrendered. (Often they
- will claim that no further action will be taken if the transmitter is
- handed over, but actually the field agents do not make that decision,
- and people who have given up their transmitters have sometimes been
- fined and prosecuted later.) If not allowed entry, the agents will
- angrily storm off, threatening to come back with a warrant. It might
- take them several hours or even several weeks to get the warrant, but
- they will be back.
-
- It is very important to the FCC that they get the operator's identity.
- Their entire legal strategy depends on having a person's name so that
- they can extract a fine from him and request a permanent injunction
- against him, and they usually assume that a station is operated by a
- single person. They will use any means they can to get a name:
- license plates on vehicles, property ownership records, receipts in
- the trash can, whatever.
-
- A station that is actually being operated by several people can
- survive a bust simply by moving to another site and being run by the
- surviving (non-busted) members of the group. When that happens, the
- FCC has to start its investigation all over again. Unfortunately many
- stations that claim to be operated by community groups are actually
- dependant on one pivotal person. If the authorities manage to
- neutralize that person the station will go silent forever.
-
- After "inspecting" a station, the FCC usually mails the operator a
- Notice of Apparent Liability indicating how large a fine is owed
- (usually $750 to $11,000). In many cases the FCC will also go to
- court and get a permanent injunction against the station operator,
- which can lead to draconian enforcement measures against him if he
- continues to broadcast. And frequently they come back later with
- federal marshals or local cops and forcibly confiscate the transmitter
- and other equipment.
-
-
- ---------------------------------
- Where can I get more information?
- ---------------------------------
-
- Introductory electronics textbooks are available at most bookstores
- and libraries. Magazines such as Popular Electronics
- ( http://www.gernsback.com/pe/pe-index.html ) and Monitoring Times
- ( http://www.grove.net/ ) sometimes carry relevant articles and
- interesting advertisements.
-
- http://burn.ucsd.edu/~mai/pirate_kiosk.html contains a bit of
- philosophy and a list of links. The FRN web site (www.frn.net) contains
- a wealth of articles plus a message board, real-time chat, and several
- large lists of web links. Andrew Yoder's books and magazine are
- advertised on the Radio Free Internet pages ( http://www.frn.net/rfi )
-
- An interesting college thesis about unlicensed broadcasting is
- at http://www.cruzio.com/~rogue/thesis.html It contains a detailed
- analysis of the FCC's procedures of enforcement and identifies some
- potential weak links in their legal chain. It also gives great
- perspective on the 70-year history of the struggle between free radio
- and the authorities.
-
- The following Usenet newsgroups contain useful data once in a while:
-
- alt.radio.pirate
- rec.radio.amateur.antenna
- rec.radio.broadcasting
-
-
- = end =
-
-
-