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I do internet broadcasting talk radio only I am Thinking of doing part 15 AM I am new to part 15 and I was wondering if there is anything I should know before I get in to it
Total posts : 45366also I would like to know what is the best stuff to buy
Total posts : 45366LPAM.info: This website was great for me.
Ramsey Electronics AM25 Transmitter: This transmitter is what I use to broadcast, at first it caused me a bit of trouble but I have gotten over that. Overall it is a good transmitter I think.
Rangemaster Transmitter: If you have a bigger budget, this transmitter is the best you can get.Hope this helps!
Total posts : 45366I have the Ramsey AM25 and SStran AM3000, and strongly recommend the SStran for starting a new station, unless as the previous responder said you have the budget for a certified transmitter. The reason is that trouble the Ramsey causes at the beginning, which is a big fat hum that takes some re-engineering to fix. Also, the range is harder to accomplish with the Ramsey, and some members have written that it exceeds the rules on power. Now my Ramsey works fine, but it took a lot of re-working. The SStran works straight off with the simplest antenna AND it has built in audio processing that works very well.
Total posts : 45366My AM25 did take a little work to get to work but after building a simple coil, I extended my range. My AM25 covers about a 300 ft radius and though I would like to extend it further, I think this is good so far. But for the price, I mostly thought it was a good transmitter.
Total posts : 45366Glad you found this board and posted. The more you ask, the more you will learn from some of the “old salts” here.
I’ll throw in a couple of comments with a minimum of detail just to get you thinking.
I have both the SSTRAN and Ramsey AM-25. Both are kits which sell in the 100 dollar range. Both have strengths and weaknesses but either will get you on the air if you can follow instructions and do some basic soldering and adjustments. Both are frequency synthesized which means the output frequency is set via switches and controlled by a crystal. This is a great advantage over the 30 dollar class kits and I urge you to go crystal controlled be it with these kits or other units such as the assembled Rangemaster or Procaster or TalkingHouse (do a search on this site or click the ad links here for more info on these).
The SSTRAN has a two audio inputs so the stereo source will be mixed in the transmitter. The output is mono but at least the L and R will remain isolated throughout the rest of the system. The AM-25 has a single audio input so you will need to mix the L and R externally.
The AM-25 requires no antenna adjustment and will work with anything from a coat hanger to a base coil loaded antenna. The SSTRAN will also do this but it requires an internal adjustment once the antenna is attached. This is not hard to do but it requires a voltmeter. ($10 or so for an el cheapo unit at big box stores).
The AM-25 will not produce clean 100% modulation but the audio, if not driven too high sounds good. The SSTRAN will produce 100% modulation and it includes an audio processor/limiter circuit which is excellent. For me it works as a set and forget.
Ask away if you want more info.
Neil
Total posts : 45366Starting out from scratch, the SSTRAN. Mine sounded great, but I could never really get a workable antenna system going. So range was limited. But for around a hundred bucks…
I changed to a Rangemaster which is designed for outside and results were greatly improved.
Tech support from both was outstanding.
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