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To: <tentec@contesting.com>
Date: Friday, March 02, 2001 7:47 PM
Subject: Re: [TenTec] Jupiters
>I'm a picky CW operator. I'm also picky about the sound of any CW
>transmitter I would use in my station. Last year I was interested in the
>Pegasus until I worked a few on the air. Every single one I've heard has a
>less than pure CW note - EVERY SINGLE ONE! There is always what appears to
>be a slight ripple or phase distortion on the note. For probably an hour I
>was in a QSO with N4LQ when he first got his Pegasus, all during the
>conversation I was adjusting PBT, VFO, and everything else at my disposal
to
>tune him in for a pure note. Never accomplished it, but thought perhaps it
>was just band conditions. Then I worked another...and another...and
>another, and began to notice a trend. Steve eventually returned his
because
>Ten-Tec told him "they all sound that way".
>
>We're not talking RF feedback here. There is a distinct difference between
>the sound of a Pegasus/Jupiter with RF feedback and its "NORMAL" sound -
and
>the "NORMAL" sound is not a pure DC note. I exchanged e-mail with the ARRL
>lab regarding the issue after the publication of the Pegasus review last
>year, and this was part of the reply from N1RL (quote below):
>
>"But when we subsequently learned of some others' experiences-like Steve's
>N4LQ--we hauled ours out and put it on the air. I got on the other end of
>the path from the mobile, and the problem was obvious and pretty much as
you
>describe."
>
>How bad is it? I liken it to running SSB with a low level 60 cycle buzz
>faint in the bckground. No it isn't splatter or key clicks, but it
>certainly isn't A1 first class fine business operator stuff.
>
>Yes, even the ARRL hears it. Ten-Tec hears it. If you can't hear it, I'm
>happy for you. Buy the rig, operate, have fun, and enjoy life.
>
>73,
>
>Rob Peebles, W8LX
>Dublin, Ohio
>
>
>---
>I suspect from experience that RF back into the radio is a key
>contributor to these problems. From that point, low SWR is not the
>total solution. Antennas being close can radiate back into power lines,
>keying lines, and a host of other places including the ground system.
>
>Remember, ground DC wise is not ground RF wise. i.e. A standard 19"
>rack panel may be grounded at one end but at 144 MHz the other end is
>1/4 wave above RF ground. On 20M some 16 ft of wire between the radio
>and earth ground puts the radio 1/4 wave above RF ground.
>
>Just a wee bit to consider.
>
>73
>Bob K4TAX
>
>jreber@es.com wrote:
>>
>> I find your Jupiter comments interesting. I have been using a Jupiter for
>2
>> months, and have only had 1 problem with a bad CW note, which was due to
>RF
>> feedback as a result of sloppy wiring in my shack. I used my Scout to
>> monitor my own signal, and was able to clean things up quite fast
>> (fortunately). I have asked for honest opinions from several people I
work
>> quite regularly (most of them use Icom 746's or 756 pros, with a few
>> TS-570's and 940's in the mix), and they all have indicated that the
>Jupiter
>> CW note sounds just fine. Never has anyone mentioned a raspy note or any
>> other such complaint, except the time that I had the RF problem, and it
>was
>> clear to the person who informed me of this that it was indeed a RF
>problem.
>>
>> It would be preposterous to suggest that the guys I chat with regularly
on
>> CW are "jealous" or have any other reason to give me a false report. We
>help
>> each other deal with problems regularly on SSB and CW, and I could
>careless
>> what rigs they use or whether they're made here, in Japan, or in outer
>> Mongolia, and they feel the same. In the end, every ham has different
>ideas
>> on what constitutes a good rig, what sounds good, what sounds bad etc.
Me,
>I
>> really, really like the Jupiter. You- well I could really care less if
you
>> like it or not.
>>
>> 73's
>> Jason AC7JW
>>
>> -----Original Message-----
>> From: Steve Ellington [mailto:n4lq@iglou.com]
>> Sent: Friday, March 02, 2001 10:55 AM
>> To: Mike Michon
>> Cc: tentec@contesting.com
>> Subject: Re: [TenTec] Jupiters
>>
>> All the Jupiters I've heard have the same raspy cw note as the Pegasus.
>> I could forgive it if it were a 40 year old tube rig not a new
>> product...TenTec needs to fix this but they probably won't since they
knew
>> about the Pegasus and never did anything about it.
>>
>> I QSOed a Jupiter user last week. He had just received a raspy note
report
>> from another station. I confirmed it. He then began another QSO with
>> another TenTec user who gave him a clean report and informed him that
>> users of Jap rigs were just jealous and making the whole thing up. He
>> expressed relief that his rig was really clean and QRTed.
>>
>> That's how it works folks. Most people can't hear.
>>
>> On Thu, 1 Mar 2001, Mike Michon wrote:
>>
>> >
>> > I have heard 2 on the air, one on SSB and one on CW. SSB was serious
RF
>> > into radio, and CW was a slightly raspy tone.
>> >
>> > Don't know if it's the radio's or the operators yet.
>> >
>> > Anybody else hearing them on the air???????????
>> >
>> > Mike
>> > AB5XP
>> >
>> > A Corsair ll owner
>> >
>> > P.S. Good luck to the guy looking for the external VFO for theCorsair
>ll,
>> it
>> > took me 2 years to find mine.
>> >
>> >
>
>
>
>
>
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