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Low Power AM Radio Broadcasting
The Low-Power AM station hobby has become more popular over the past 2
years. In the U.S, it is legal to broadcast over the AM band 540kHz-1700kHz using a 3 meter antenna and a 100mW transmitter. Until recently, building a small AM radio station was very complicated and very expensive, until now. Using a SSTRAN AMT-3000 transmitter, which comes as a kit for under $100.00US, or a built version which comes assembled and tested for under $200.00 US, and a 3 meter, coil loaded and tunable antenna for around $225.00 US, anyone can get on the air right now! I get questions about range: the system I am describing has had reports from 1/2 mile to over 4 miles! Range totally depends on these factors: location, scope of the land, conductivity, choice of frequency/adjacencies, and use of this antenna. If the transmitter and antenna are installed correctly in a proper area, several miles are possible. Many people are interested in a good, solid local signal and this system does it for a fraction of the amount of money you will spend for a comparable system. If you are interested in low power AM Broadcasting, I invite you to visit this site: http://antenna18431.tripod.com/antenna.htm In this site you will find information on the 3 meter antenna, pictures of it, information and pictures of the transmitter and a link to email questions, comments and inquiries to. If you would like to be on the air, this is an excellent choice to do it well, and at a very affordable price! |
#2
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"WCRV WCRV" wrote in message
... The Low-Power AM station hobby has become more popular over the past 2 years. In the U.S, it is legal to broadcast over the AM band 540kHz-1700kHz using a 3 meter antenna and a 100mW transmitter. Until recently, building a small AM radio station was very complicated and very expensive, until now. ????? When I was a kid, I built one using parts from a junked TV. Zero cost. Using a SSTRAN AMT-3000 transmitter, which comes as a kit for under $100.00US, or a built version which comes assembled and tested for under $200.00 US, and a 3 meter, coil loaded and tunable antenna for around $225.00 US, anyone can get on the air right now! I get questions about range: the system I am describing has had reports from 1/2 mile to over 4 miles! Range totally depends on these factors: location, scope of the land, conductivity, choice of frequency/adjacencies, and use of this antenna. If the transmitter and antenna are installed correctly in a proper area, several miles are possible. Many people are interested in a good, solid local signal and this system does it for a fraction of the amount of money you will spend for a comparable system. Hard to beat free. If you are interested in low power AM Broadcasting, I invite you to visit this site: http://antenna18431.tripod.com/antenna.htm In this site you will find information on the 3 meter antenna, pictures of it, information and pictures of the transmitter and a link to email questions, comments and inquiries to. If you would like to be on the air, this is an excellent choice to do it well, and at a very affordable price! -- ... Hank http://home.earthlink.net/~horedson http://home.earthlink.net/~w0rli |
#3
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It has always been legal to use 100MW on the BCB, geez like this something
new? Like a previous poster stated parts can be had for nothing. Very complicated and expensive??????????? It's AM for crying out loud!!!!! "WCRV WCRV" wrote in message ... The Low-Power AM station hobby has become more popular over the past 2 years. In the U.S, it is legal to broadcast over the AM band 540kHz-1700kHz using a 3 meter antenna and a 100mW transmitter. Until recently, building a small AM radio station was very complicated and very expensive, until now. Using a SSTRAN AMT-3000 transmitter, which comes as a kit for under $100.00US, or a built version which comes assembled and tested for under $200.00 US, and a 3 meter, coil loaded and tunable antenna for around $225.00 US, anyone can get on the air right now! I get questions about range: the system I am describing has had reports from 1/2 mile to over 4 miles! Range totally depends on these factors: location, scope of the land, conductivity, choice of frequency/adjacencies, and use of this antenna. If the transmitter and antenna are installed correctly in a proper area, several miles are possible. Many people are interested in a good, solid local signal and this system does it for a fraction of the amount of money you will spend for a comparable system. If you are interested in low power AM Broadcasting, I invite you to visit this site: http://antenna18431.tripod.com/antenna.htm In this site you will find information on the 3 meter antenna, pictures of it, information and pictures of the transmitter and a link to email questions, comments and inquiries to. If you would like to be on the air, this is an excellent choice to do it well, and at a very affordable price! |
#4
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John Franklin wrote:
It has always been legal to use 100MW on the BCB, geez like this something new? Like a previous poster stated parts can be had for nothing. Very complicated and expensive??????????? It's AM for crying out loud!!!!! If you take a look at the transmitter it has a lot of bells and whistles built in. It was designed by a regular on rec.antiques.radio+phono for people who collect and restore antique radios. -- ? Michael A. Terrell Central Florida |
#5
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Well letsee.......Popular Electronics Mag (no longer in business)
published an AM transmitter article for use on the BCB. It was housed in a steel mail box along with the antenna network and antenna out the top of it. It was meant to be mounted outside with the power and audio remotely fed to it. Letsee that article was published in 1962 as I recall........As a broadcast engineer I would be really critical of what the "Bells and whistles" were. "Michael A. Terrell" wrote in message ... If you take a look at the transmitter it has a lot of bells and whistles built in. It was designed by a regular on rec.antiques.radio+phono for people who collect and restore antique radios. Michael A. Terrell Central Florida |
#6
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John Franklin wrote:
Well letsee.......Popular Electronics Mag (no longer in business) published an AM transmitter article for use on the BCB. It was housed in a steel mail box along with the antenna network and antenna out the top of it. It was meant to be mounted outside with the power and audio remotely fed to it. Letsee that article was published in 1962 as I recall........As a broadcast engineer I would be really critical of what the "Bells and whistles" were. Broadcast Engineer? I started in that field in 1973 and have worked in TV and AM radio until last year. It was awarded as a civilian acquired skill when I was drafted in '72. I have worked up to a 5 MW ERP UHF TV site with a 1749 foot tower. I started with '40s tube equipment and worked up to state of the art RF and studio sites. I like a good design, but then I got spoiled working on $80,000 radios and building multi-million dollar telemetry receiving systems. I don't need another transmitter around but I would probably build one with a MC1496, or one of the newer Analog Devices four quadrant multiplier chips if I changed my mind.. -- ? Michael A. Terrell Central Florida |
#7
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Hi Micheal, I guess after doing the real thing a .1 watt
transmitter doesn't do much for me. I will say however that QRP is fun for me on HF thru 70CM. I remember once using a signal generator, modulating it and feeding a longwire. I heard it for about a 5 block radius. I called it KVOM (K voice of Milpitas) Calif. I picked a clear freq and went for it. Hmmmmmmm talk about coverage............I live in Nashville and WSM covers real well. That big Blaw-Knox tower dominates the area along I-65. I can listen to WSM when in Birmingham AL during the day quite well on a car radio. "Michael A. Terrell" wrote in message ... John Franklin wrote: Broadcast Engineer? I started in that field in 1973 and have worked in TV and AM radio until last year. It was awarded as a civilian acquired skill when I was drafted in '72. I have worked up to a 5 MW ERP UHF TV site with a 1749 foot tower. I started with '40s tube equipment and worked up to state of the art RF and studio sites. I like a good design, but then I got spoiled working on $80,000 radios and building multi-million dollar telemetry receiving systems. I don't need another transmitter around but I would probably build one with a MC1496, or one of the newer Analog Devices four quadrant multiplier chips if I changed my mind.. -- ? Michael A. Terrell Central Florida |
#8
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This man is right; hey, if you can build one for zip bucks, go for it;
most people can't. For some reason, I thought I was trying to help those who would like to be on the air. |
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