Just curious, will the Corsair II handle the 500hz - 8 pole filter(#217)
in the 9MHz front end? Perhaps this would be more advantageous for a
serious cw only op than the #220 or 218?
73, Mike, ac5p
On Wed, 04 Dec 2002 07:32:27 -0500 Bwana Bob <wb2vuf@gti.net> writes:
> Max,
>
> I added the 8 pole filter to my Corsair and noticed an immediate
> difference. The skirt selectivity is greatly improved. The passband
> tuning is much sharper: a little tweak of the PBT and adjacent
> channel
> QRM slides right off the skirts and into the mud. On cw, the effect
> is
> less noticeable if you run the 500 Hz filter, but it should be
> improved
> because the 8 pole filter will keep QRM from reaching the 500 Hz
> filter.
>
>
> 73,
>
> Bob WB2VUF
>
> Max Moon wrote:
> >
> > Hello,
> > I recently got a Corsair I for CW (it's all I do, I never learned
> how to use
> > SSB). I was reading the manual today and it says that I can
> improve the
> > Corsair's performance by replacing the standard 2.4 kHz 4-pole
> filter at the
> > 9-MHz IF with a TT#220, an 8-pole 2.4 kHz ladder filter. My guess
> is that
> > they mean SSB performance will improve. But I never use a 2.4kHz
> bandwidth
> > for anything.
> >
> > (In addition to the standard 4-pole filter, the rig came with one
> of the
> > optional 6.3 MHz filter slots filled with an 8-pole 1.8 kHz
> (TT#288) which
> > is my regular choice. I added TT#282 & 285 (500 and 250Hz) for
> when the 1.8
> > kHz is too wide.)
> >
> > My questions are: Would the rig's performance improve if instead
> of using
> > the TT#220 mentioned in the manual, I replaced the 9MHz IF
> standard 4-pole
> > filter with the TT#218, an 8-pole 1.8kHz filter? Or are there
> other filter
> > options that I should consider? Or am I pretty much already in
> Corsair I
> > heaven with the set-up I've already got?
> >
> > Thanks very much.
> >
> > Max, k0max
> >
> > Or do you
> >
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