[TenTec] Inrad filter in Omni VI

[Charles Greene]

Paul,

I have ordered an InRad roofing filter for my OMNI-VI+, and I have the same 
filter arrangement as you in N-1 and N-2.  I noticed a slight attenuation 
with the 250 Hz filter, but I can't say I ever lost a CW signal.  I found 
it's important to align the 9 MHz 250 Hz or 500 Hz filter with the 6 MHz 
and 500 or 250 Hz filters.  You can do this with the PBT control.  I use 
MixW which gives you an audio spectrum display and you can align either the 
9 MHz filter with the 6 MHz filters by turning the PBT control while 
watching the display.

Having said that, I think it is an  advantage to select the roofing filter 
separate from the N-1 or N-2 filters.  You mentioned a mod by Dave Bowker
to do this.  Could you direct me to that mod?

TNX

At 12:07 PM 2/28/2005, Paul DeWitte K9OT wrote:
>"Paul DeWitte K9OT" <k9ot at mhtc.net>

73,  Chas,  W1CG