TopBand: noise canceller

[Peter Chadwick]

W8JI said:

>By the way, the DeMaw (now SK) QRN squasher  system does not rotate 
>phase at all, so it would really be luck if it worked. It's either 
>zero or 180 shift on 160. 

I looked at the circuit published in CQ, and couldn't figure how it
worked for exactly the reason Tom says.

If you have n noise antennas, you can null (n-1) signals with the
technique, but I guess you have to roll your own to do that.

73

Peter G3RZP


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