You might now add a length of wire, with the 50ohm resistor on place and see if 
a CQ will show up on the RBN.


> On Mar 11, 2018, at 11:35 AM, Jon “KF5TFJ” Noxon via BVARC <> 
> wrote:
> Gang,
> Friday after pulling out the HFB ][ built the night before, I could not get 
> it to work with my Nano Keyer project. But despair not, as I found the 
> solution…
> I replaced the optocoupler 4N43 with a MCT6, and now it works! The N43 did 
> not cause any issues with my KX3, but apparently the forward voltage drop was 
> a bit too much for the HFB ][.
> Jon
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