On 3/20/2013 3:46 PM, m II wrote:

The front ends of most receivers seem pretty high impedance. I wonder
what the signal loss would be if two or more sets shared the same
antenna.

If the front ends are anything like the 10 megohm inputs of a digital
multimeter, I can't see much degradation if the signal were paralleled
over a few different sets.

Any keen insights?

Well, if you had two specific radios you were concerned about, try this:

1) Tune both radios to the same station.

2) Put the antenna on rx 1 only and write down the S-meter reading.

3) Put the antenna on rx 2 only and write down the S-meter reading.

4) Connect the antenna to both receivers and see if the S- meter reading
is significantly different than in steps 2 and 3 above.

Let us know what you find out.