Topband: rx antenna switch

[John Langridge]

I think someone mentioned quite a while ago that they used a simple radio
shack A/B or A/B/C pushbutton switch designed for vcr/cable to switch their
receive antennas.  I skimmed through the archives hoping to chance upon the
thread but suspect that the mention was only incidental, embedded within
another thread.

I purchased one of the "newer" models this past weekend and found that when
I hooked it up, there were no signals whatsoever.  The cables and connectors
were fine and there was plenty of signal when I took the switch out of line.
Thinking I had a bad unit, I took it back only to find that the unit I had
was the last one in stock.  Instead of bringing it back home and opening it
up to see what was inside, I returned it on the spot.

Has anyone actually used one of these switches successfully for this
purpose?  Could the fact that they are advertised as "high isolation"
indicate that these are not just simple switches and may not pass a signal
in the HF/MF range?

Thanks in advance for any info you might have.

John KB5NJD