[Elecraft] more on planned variable-BW roofing filters

[wayne burdick]

One of our planned variable-BW filters would have a BW of about 1.6-2.4 
kHz, targeted at SSB use. This is a crystal roofing filter, not a 
filter downstream someplace. It would have at least 4, and possibly as 
many as 8 discrete bandwidths. In effect, it's like having four (or 
more) filters in one slot, allowing you to narrow down and avoid QRM 
with more precision.

It would be automatically set to whichever bandwidth is just above the 
selected DSP BW (that which results from the setting of 
SHIFT/WIDTH/HICUT/LOCUT).

73,
Wayne
N6KR

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