Dave, I have 200 Hz and 400 Hz filters in my K3. My K3 copies RTTY fine through the 200 Hz filter. That being said, I normally use the 400 Hz filter unless the band is crammed with signals during a contest. The 200 Hz filter also reduces a the apparent signal to noise ratio between my ears when working CW on the low bands during very noisy conditions.
73, Bill - NA5DX
Which two of the 200/250/400 and 500 hz filters are best for digital use, primarily RTTY, both contests and dx. I understand that for JT-65 and PSK the standard ssb filter, or even the AM filter is useable. I am concerned that the 200 hz might be too narrow for RTTY. I work some CW but almost no ssb.
73, Dave, K2YG
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