Doesn't the Jupiter already have a band sweep? It seems that if one used an
SM-220 it would be mainly to monitor waveforms, ensure you're not
overdriving your amp, doing a two-tone test. It's also a rudimentary
oscilloscope. All-in-all a less than essential adjunct to current day
equipment, though.
Gene
----- Original Message -----
From: "Duane Grotophorst" <n9dg@yahoo.com>
To: "Michael Melland, W9WIS" <w9wis@charter.net>; <tentec@contesting.com>
Sent: Tuesday, February 24, 2004 5:03 PM
Subject: Re: [TenTec] Jupiter and KENWOOD SM-220 STATION
>
> The IF's of the Jupiter are 45Mhz, 455Khz, and 12Khz
> (maybe 14Khz). While it may be possible to adapt the
> SM-220 to one of those IF's the gotcha is that the 1st
> LO tunes in 2.5Khz steps. So the pan display on the
> SM-220 would be jumping back and forth that same 2.5
> Khz as you tune the radio. So probably not practical
> to interface in the long run.
>
> Duane
> N9DG
>
>
> --- "Michael Melland, W9WIS" <w9wis@charter.net>
> wrote:
> >
> > > The band sweep function (if equipped) needs an IF
> > feed of the right
> > frequency, but that feature's built in to the
> > Jupiter, right?
> >
> > It "is" possible but it may not be plug and play...
> > I can't recall the IF
> > freq of the Jupiter. The SM-220 needs the optional
> > BS-8 or BS-5 panadapter
> > module to sweep. The BS-8 is for an radio IF of
> > 8.830 MHz ...the BS-5 is
> > for IF of 3.395 MHz. It can stock display a swept
> > range of 40 kHz or 200
> > kHz.
> >
> > It is possible to alter the panadapter module for
> > other IF's .... there is
> > an artical written by Bob Parnass on doing just that
> > to interface the SM-220
> > and adapter to an Icom 70000 with an IF of 10.7 MHz.
> >
> >
> http://www.mods.dk/mods.php3?radio=icom&model=ic-r7000&selectid=403
> >
> > Mike, W9WIS
> >
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
>
>
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