My solution for this is to configure the K3 to switch the 250 Hz roofing
filter in at 350 Hz. A DSP filter of 250 Hz is a bit narrow, but with a
350 Hz DSP setting and the 250 Hz roofing filter, I still get good copy.
That being said, most of the time I operate RTTY with a 500 Hz roofing
filter and the DSP filter at 400-450 Hz; I only use the 350 Hz setting
when there is a strong signal shoulder-to-shoulder with the one I am
trying to copy.
73,
Rich VE3KI
WK6I wrote:
For RTTY the sweet spot is 400. At 250 you might lose information your
decoders need to work. 73 jeff wk6i
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