Sound card users' preference for bandwidth wide enough to receive fifty or
more signals is what makes us vulnerable. W1AW does NOT wipe out the 80m
psk31 sub-band; its CW signal occupies perhaps 50-100 Hz. Use a narrow
filter, and a front-end able to handle nearby strong signals, and the
Cortland Richmond wrote:
Sound card users' preference for bandwidth wide enough to receive fifty or
more signals is what makes us vulnerable. W1AW does NOT wipe out the 80m
psk31 sub-band; its CW signal occupies perhaps 50-100 Hz. Use a narrow
filter, and a front-end able to handle nearby
Hi, Rik.
Then use a 250 or 500 Hz BW pass band filter. Engage the notch filter. Get
an MFJ 1026 and null him out. Use a separately rotatable loop antenna for
receive. There are a number of things which will work, either by
themselves, or together.
We have or can get filters and other tools.
