Topband: thanks for RX antenna advice - and one more question

[Pete Smith]

Thanks to the many topband denizens who responded to my inquiry.

I have one related question.  KD9SV, who knows a lot about receiving 
antennas, cautioned "I would just make sure to switch 'both sides of the 
coax' so as to not add any ground loops that could possibly add a lot of 
noise from the shack to the radio being used...in other words you do not 
want two extra coax's hanging off the radio in use."

This is the first I've heard of this.  If the center conductors are 
switched, but not the shields, and the coax lines to the two additional 
receivers are short, is there likely to be any noticeable noise pickup, on 
the low bands?  Obviously, switching the shields as well will make life a 
bit more difficult, for instance requiring a plastic enclosure rather than 
metal, which I had planned on using.


73, Pete N4ZR
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