I have an antenna problem doesn't go away even with
a new M2 yagi and different coax. MFJ 3 el yagi had the same problem. Here's the problem:
The SWR bridge shows greater than 5:1 over the entire 6m band with the antenna, and the transceiver
cuts the power back to just a few watts. Taking a 50 ohm 100W dummy load out and attaching it
to the coax, the SWR/power meter shows about 1.05:1 and 150W. The power seems a little high. It's set to 100%.
The antenna is mounted to a piece of PVC pipe attached to a 55 gal trash can and is 8 ft in the air
and in the clear of any metal, trees or anything.
The only thing I can think of (and I hate to think this) is that the transceiver is putting out wide
band trash and since the dummy load impedance isn't frequency dependent like the antenna
it shows a low SWR. Can this be?
I don't have another 6m signal source to check the antenna with. Also I don't know anyone who works on the FT-100D. I'm sure Yaesu would disclaim it since
it's no longer built.
What should I do? I'm at the end of my tether with this problem. I don't want to put the antenna in the
air until everything is OK. How to troubleshoot the problem?
? Most shops would just put the radio
on a dummy load and the SWR would look fine like it does here.
This has become a real downer for me. Do you have any suggestions? Know anyone who works on
old Yaesus? Have you ever heard of a problem like this?