[DogParkList] Noise Part 2

[ltrranch at vtc.net]

Dear Friends, I did a simple experiment based on Chris's inputs. I  
disconnected the antenna at the transceiver and did the "on/off" test  
of MacLogger. There was no noise on 20 meters. Not to confuse things,  
but I did the same test by disconnecting and connecting the USB  
cable, switching "on/off" MacLogger with the antenna connected to the  
transceiver. Again, there was no noise. On my radio there must be  
something unique about 20 meters and the use of MacLogger. I guess  
the noise is coming down the antenna. Greg, I saw your input. The  
module you speak of, does it go in-line with the USB interface?  
Thanks Tom N7KCX