Hi all,
I got everything wired up and working, although I still need to assemble a keyer and PTT switch.? It's in an enclosure from an old lab power supply, which saved me quite a bit of drilling, and already has a fuse and chassis ground line installed:
So far I have three questions:?
First, if I use headphones the CW sidetone on transmit is painfully loud unless the volume level is very low.? Is there some means to reduce the sidetone to the headphones, or should I just not be using headphones??
Next, there is a significant pop in the headphones at any volume level when I push PTT---loud enough to make my ears ring.? Basically I can't have the headphones on when I press PTT.? I'm using the supplied electret mic wired between tip and ground, with PTT between ring and ground.?? Is there some obvious mic trick I should be trying to prevent this??
My third question is regarding power:?? has anyone been able to measure the power output on 20m?? I only have an MFJ 5W QRP wattmeter, and it's a bit....qualitative.? I can verify greater power output at lower frequencies, but I can't get an absolute power measurement.?
Thanks, Xcott K2CAJ
