Some of these are built, using the same PLL as the, MP3 player, Car Radio plug in converters
with a 4 or 5 watt stage, added in a posh box, some are not very clean output, to start with
At low power, don't matter if not very clean output, but if you put a large amplifier on it
It may cause interference, even to the Aircraft band, just above the FM Band
If your serious about more range, and don't have techy knowledge, buy a ready built transmitter
such as the https://www.aareff.com/en/ ones
Message Thread | This response ↓ 
BF output problem with my TX - Luca August 25, 2026, 11:11 am
« Index