Unexpected Behavior of Smart SDR SWR / Power Meter into New OCF Dipole

Bill Roberts

EA4GLI

Looks like you might be txing out of the wrong ANT port.

G4NRT

I think we have ALL done that - once at least!

David G4NRT

Martin AA6E

My 6500 occasionally transmits into an open circuit, it seems.  Somehow the internal antenna switching does not set up properly.  I can fix this by switching antenna ports to #2 and then back to #1, or other fiddling like that.  After it starts working, all is normal.

It's rare enough that I haven't declared it to be a major problem, but it is a nuisance when it happens.

Bill Roberts

I'll give that a try.  The funny thing is that I do receive.  Signals seem about 20% weaker than on my main antenna (a GAP Voyager vertical dipole for 160-20).  Thanks.  I will report back but first I have to do the lawn.

Bill Roberts

Might as well close this one. It appears my problem was stray RF that didn't bother the back-up radio. Problem resolved with an old Radio Works line isolator.

km9r.mike

Odd that your pc speakers which seem to be both sensitive and accurate to the presence of stray rf did not indicate such. Good to hear you found a solution and did not have to rely on that back up rig.