Just out of curiosity I did a quick test of my
DVB-T software on 436 MHz. Output power was
under a mW. My Samsung TV when told to
monitor 436 MHz successfully received the signal.
As could be expected the DVB-T signal drowns out
everything above 432.5 MHz so that was the first
and last time I try it.
The output power on DVB-T is considerably below
what I can achieve on DVB-S, so I am going to have to
re-think the driver amplifier as it does not have enough
gain for 1.3 GHz DVB-T although it will be fine for DVB-S.
My DATV experiments have shown me that I really need to
get a much higher quality camera to fully utilise the benefits
of Digital. Have looked at the price of even used studio quality
cameras I don't think that is going to happen any time soon.