On Wed,2/18/2015 8:51 PM, Larry Loen wrote:
The point of low loss coax is to hear them.
Not really -- that's only true with very small signal work in very quiet
locations. For the vast majority of us, and for nearly all real world
conditions, what we can hear is limited by atmospheric and man-made
noise. It's easy to figure this out -- if you start with no antenna
connected to your RX, then plug one in, and the noise increases by 10
dB or more, you are limited by the noise coming in on the antenna, and
lower loss coax (or even a more sensitive RX) won't help. What CAN help,
sometimes a lot, is an antenna that rejects some of that noise while not
rejecting (or rejecting less of) the weak signal you want to copy.
What low loss coax DOES do is make us louder in the other guy's radio.
73, Jim K9YC
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