Hi, Ken
Regarding placement of selectivity, your suggestion of replacing Y2 is
intriguing, although one would have to be very careful of the low end rolloff
in this filter. (George at INRAD has already found that the 2.4KHz filter there
causes some attenuation for low CW pitches.)
I think my main problem is one of being able to turn the roofer on and off
independently of the NAR filter, and that is only because I have the Omni VI
and not the VI+. I'll probably set mine up to use one of the following buttons
to control the roofing filter: ATTN, Voice, or FM.
73,
Chuck NI0C
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