The Mosquito does around 250mW carrier and nearly a Watt peak. It uses three paralleled 2N7000 FETs for the output. It's NOT capable of any more power. You also wouldn't want to try amplifying its output!
The crystal oscillator isn't at all temperature stabilised, so the Mosquito is invariably off frequency by a few ten (or even hundreds) of Hertz. This means that it will heterodyne with whatever weak signal is below it.
The output match is designed to work into a piece of wire a few metres long. It could be fiddled with to change the output match, but it wouldn't be worth the bother.
There are rumours that OFCOM won't enforce MW pirate broadcasting as long as it doesn't cause interference. I plan to test this out over the spring and summer with a few tens of Watts into a good antenna. It'll be in East Anglia, and going on previous experience with similar gear, it'll give reasonable daytime coverage.
One of the issues - frequency accuracy - will be dealt with by phase-locking the rig to the BBC 198kHz frequency reference!
Message Thread | This response ↓
« Back to index
Please post or reply to any Radio-related subject / topic or question, all are welcome, Pirate, Legal, Web, Etc.