I have a problem for which someone on this forum has the solution. I know that because I have seen that message sometime in the past. The problem is that my rotator is rectifying a couple of AM stati
Hi Jerry, There's a good chance the problem originates inyour control box rather than your rotator. Does the problem stop if you completely disconnect the control box? 73 Frank W3LPL -- Original Mess
Unfortunately no. Already tried that. That would have been too easy of a fix. Jerry There's a good chance the problem originates inyour control box rather than your rotator. Does the problem stop if
Hi Jerry Any cable/wire is an antenna. If it long enough or near 120ft it will work like a 1/4 wave vertical. The path to the ground is important because the current will add to other circuits at the
Interesting you have the spur on 1820. I have the exact same situation on 1820 as well. Sometimes I can actually pull weak audio off the spur but have not been able to identify which local station or
Do you have a heavy gauge flexible strap jumpering the mast pipe to the top of the tower? The mast pipe must be at the same electrical potential as the tower. The thrust bearing and rotor motor proba
Hi Lloyd: I would not recommend using braid to connect the mast to the tower. The braid will take on water quickly and become less effective. A large flexible insulated cable is the best way to go. T
Likely all the spurs you see on 160 that are caused by AM stations will land on 10 kHz increments because the stations are spaced on 10 kHz increments. I identified one of the stations that was a big
Jerry, et. al., I didn't have the problems from my own installation, but I used to live about 1/2 mile from an AM 930 station and there would be a 2nd harmonic spur at 1860 and a mixer spur of 2 x 14
Thanks George. I'm pretty sure that the mixer in my case is the rotator or mast contact. All I have to do to knock the spur down is just barely move the rotator. It will stay down for a few minutes,
I had a similar situation when I lived outside Mesa, AZ. Two AM BCB stations were mixing creating a mixer spur within 160. I was using an IC-756 PRO at the time. I used an ICE 430B HP filter in the r