Why does changing Xmit antenna affect Receive. 6700.
I am in a location at 7000 ft on the continental divide in Montana. It is so quite here that on 20m I can add 30db of pre-amp and noise and noise floor doest not increase but a weak signal will go to arm chair copy.
Open Two pan adapters
Set both to Rec ant 1 and Xmit ant 1
Set Ant preamp to +30
Notice that the noise floor is at around -130
Change one pan to rec ant2
Signals ago away preamp goes to 0 and noise floor stays the same as expected.
On one Pan change to Xmit Ant2
The noise floor on both goes shifts to -160 on both Pans
Now put the top pan to rec ant1 xmit ant 1
The noise floor goes back to -130 and preamp is turned off
Doesnt seem to me that changing the xmit antenna should change rec antenna settings.