Hello,
I am having trouble getting power out on 2M (using it as a beacon).
I see 200mv on the collector of the BS170 fet with 5V on the drain.
I peaked the output adjusting the bias, for a clean looking signal on the scope.
Am I supposed to use +12V on the U3S PA+ line?
The 5W PA does amplify the signal, but I fear the drive power is too low.
I do have the VHF fet in the 5W PA board.
This is my first U3S unit.? I am monitoring the unit on a 2M receiver, so I know it is
transmitting, plus looking on a scope.? No power indication on a 15W wattmeter, maybe
the needle just barely moves.
Things to check?
TIA
73
Glen K4KV