Did you also add a ground strap at the other corner where there is an empty screw hole in the inner chassis wall?
73
-Jim
NU0C
On Sun, 21 Apr 2024 23:15:44 -0700
"Raoul Meunier via groups.io" <rmeunier@...> wrote:
Thanks Jim, Kam and Gary for your comments and pictures, very explanatory!?I definitely need to do more work after looking at those ferrite beads over several wires.
Today I added a ground strap to the rear HPF board with good results. I was able to increase the pre-driver pot to get 60 watts on 10 meters and no oscillation on 40 meters, loading the 4-band Yagi antenna. However, when I went through the tuner to reduce the SWR, the scary oscillation immediately started, so I reduced the pre-driver pot to get 50 Watts on 10 meters. I can go through the tuner with no problems now, on 40m.
For some other reason, I can't get more than 60 Watts on 10 meters (using the Dummy Load).
I'll look for those ferrite beads and install them.
Thanks again!
73 de Raoul CE3RY
--
73
-Jim
NU0C
Jim Shorney