Hi Kevin,
the default drive current is 2mA. So uncommenting the line and compiling
with 2mA shouldn't make any difference.
So then I guess it must have been the RG-174 coax (and the cable
arrangement perhaps) that made the difference.
Well, apparently 2mA works OK in your rig. You could still try 4, 6, 8 mA
and see if it makes any difference (birdies, receiver sensitivity, noise,
etc).
73, Allard PE1NWL
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On Mon, April 10, 2017 15:37, Petry, Kevin wrote:
Just a suggestion: I found that the drive current line in my Raduino was
commented out. I removed the comment slashes and compiled with the
current set a 2 MA.
I also replaced the two wires that carry the VFO signal from the Raduino
to the board with a short length of RG-174U coax and the birdie is now
completely gone. Not sure which change killed it at this point.
Kevin