[1000mp] On-Air test for Roofing Filter check ??
ChetMoore
ChetMoore at cox.net
Wed Dec 29 00:07:46 EST 2004
----- Original Message -----
From: <kr6c at juno.com>
To: <1000mp at mailman.qth.net>
Sent: Tuesday, December 28, 2004 11:30 PM
Subject: [1000mp] On-Air test for Roofing Filter check ??
>
> Hi,
>
> I just installed the roofing filter but sure dont seem to notice any
> difference when tuning around the band. Should the rolloff or "Bandpass"
> difference be noticeable between the main and the aux VFO's when listening
> or is this something that will be noticable in pileups and contests? I
> used an oscillator and tuned thru the frequency with both VFO's (S0 to S20
> to S0). Theres about a 2 kHz wider passband on the aux receiver then the
> main.
>
> I didnt check to see if there was 5V on the pins after I removed the 70MHz
> mod. Did I miss something or should I have heard a big difference??
>
> Thanks
> Chuck KR6C
>
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