[TenTec] Omni VI+ and Corsair II receive

[Barry N1EU]

With respect to the Omni VI+, AB9M mentioned "TenTec
for that reason provides narrow roofing filters in the
first IF. With the 500 Hz or more likely the 250 Hz
filters selected"

I don't think it's quite right to call these cascaded
9Mhz 1st i.f. filters "roofing filters"

There's actually a wide (15khz?) "roofing filter"
before the 2.4khz 9Mhz filter.  A few folks have
experimented (but nothing conclusive ever published)
with replacing that wide roofing filter with a
narrower filter to improve close-in dynamic range
performance.

73,

Barry N1EU
www.albany.net/~bg

__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com