In the U.S., freedom of speech doesn't extend to using profane and indecent language over the airwaves; that is already in FCC rules. So the FCC alre...

Carl is on a self-imposed sabbatical, and it is unclear as to whether he will return. He can be found at

Depends on where the receiver is in relation to the transmitter. If they’re beside each other, there’s probably nothing to worry about.

Every transmitter generates harmonics, and can also generate spurs as well. Part 15 certification means, among other things, that the spurs and harmo...

I'm not saying that foobar is the solution for everyone, but it's worth a look. You really have to play around with it, as I found there's a huge dif...

My comments were directed towards those who claim to know the precise meaning of the FCC rules (most especially 15.219), when the FCC themselves have ...

1. The FCC 2. The FCC changed their interpretation of ground wire as written in the rules

Rich stated: "Accurate technical information posted on websites about the operation of unlicensed transmit systems actually meeting Part 15 Rules tend...

There's very little information associated with the NOUO, so it's difficult to determine why 15.239 was used, rather than 236. 87.9 IS available for ...

I guess it all depends on what you mean by "works better". If you're looking for the best range, then you have to look at field strength, and there's...

As Tim states in his test report, this device is certified under Part 74 of the FCC rules, not 15.236. Part 74 requires licensing, or at the very le...

Exactly, Tim. Mr. Wonderful was calling users of such devices pirates. At best he was being disingenuous, at worst deliberately misleading. It does...