Had an interesting morning doing DVB-T tests with Martin G4FKK. With my 4m 5 element beam on the pump-up mast, I was able to reduce my transmitter power down to 50mW and still maintain lock. We tried 150, 250, 333 and 500SRs, not much to choose between 150 and 250 although an easier lock was achieved at 250. Higher SRs needed a little bit more power (selected via a 0-10db switched 10-step attenuator).
The reverse path wasn't quite so robust, but suspect I have significant digital noise from something that really doesn't help matters.
Not bad going , 10mw/km video and sound!
Gareth
QRP via DVB-T
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Re: QRP via DVB-T
Do you have a good path to the North Gareth?
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radiogareth
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Re: QRP via DVB-T
Not really Mike, North downs in the way, and only 250mW DVB-T at the moment. Maybe when I finish one of the 70MHz amps it might work.
Gareth
Gareth