Remco and HB9ADJ, thanks for valuable test protocol and snapshots.
Where my 10706 V is same than yesterday, I don't retrieve today the 11205 H carrier... Will recheck all the stuff when WX allows.
Your 10706 V snapsho shows 2 traces : is that what we are supposed to see ? I did not see that from other users snapshots ?
I looked more closely at the two frequencies. Both traces appear when I am in vertical polarization this on both frequencies. I made two new photos in horizontal polarization with the control of the azimuth at 24 °. Here they are: