Hmm, interesting, because my Omni VI+ QSK keying loop worked great with
(1) Ten-Tec Centaur, (2) Ten-Tec Centurion, and (3) Alpha 99. Never a
hitch with it. Much more seamless than using the Centaur to key the
IC-765 for QSK.
73, Duane
On Tue, 10 Aug 2004 22:22:40 -0000 "Bob Henderson" <bob@cytanet.com.cy>
writes:
> This is interesting. As I said the Omni VI+ doesn't work well in QSK
> with
> the 87A or the Acom whether loop connected or not and that's due to
> the way
> TX Out on the VI+ is timed. If the Orion really works properly in
> loop mode
> with the Acom 1000 and the Alpha 89 then that suggests that the
> Orion timing
> for TX Out is different to the VI+.
>
> Could this be the reason Ten Tec amplifier owners using Orions are
> complaining about the QSK not working well? It sorta seems to me if
> the
> Orion is correctly timed for QSK loop connect with the Acom and the
> Alpha
> then it can't be for the Ten Tec amps which use the sequenced
> relays.
>
> As I say....that's the way it seems to me.
>
> Bob, 5B4AGN
>
>
>
> ----- Original Message -----
> From: "Duane A Calvin" <ac5aa@juno.com>
> To: <n4py@earthlink.net>; <tentec@contesting.com>
> Sent: Tuesday, August 10, 2004 9:36 PM
> Subject: Re: [TenTec] dit chopper IC-7800
>
>
> > And this is how I have my Alpha 99 connected. Also works great on
> 1.371.
> >
> > 73, Duane
> >
> >
> > On Tue, 10 Aug 2004 21:28:12 -0000 "Carl Moreschi"
> <n4py@earthlink.net>
> > writes:
> > > I run the Acom 1000 with my Orion. I use the TXOut line of the
> Orion
> > > to the
> > > Acom key in line. I then connect the Acom key out to my Orion
> TXEN.
> > > This
> > > results in perfectly timed full QSK with the Orion and Acom
> 1000.
> > > This
> > > works well with Orion firmware 1.371.
> > >
> > > Carl Moreschi N4PY
> > > Franklinton, North Carolina
> > > n4py@earthlink.net
> > > ----- Original Message -----
> > > From: "Bob Henderson" <bob@cytanet.com.cy>
> > > To: <tentec@contesting.com>
> > > Sent: Tuesday, August 10, 2004 8:37 PM
> > > Subject: Re: [TenTec] dit chopper IC-7800
> > >
> > >
> > > > Duane
> > > >
> > > > I have been running full QSK for almost 30 years. I have
> never
> > > used a
> > > > keying loop with my amps and I don't have hot switching
> problems.
> > > > Currently, I have two Orions, one drives an Alpha 87A and the
> > > other an
> > > Acom
> > > > 1000. The 87A is pin diode switched but the Acom uses a
> vacuum
> > > relay.
> > > Both
> > > > amps are controlled with direct connections from the Amp Key
> 1
> > > outputs of
> > > > the Orions.
> > > >
> > > > With apologies for mentioning the unmentionable..........I
> have
> > > previously
> > > > used these amps successfully in QSK with TS930, TS870, TS950,
> > > TS570,
> > > > FT100MP, FT1000MP Mk V Field, & Elecraft K2. The only radio
> I
> > > have which
> > > > will not work well without modification is my Omni VI+. The
> VI+
> > > doesn't
> > > QSK
> > > > properly with these amps whether I use a loop circuit or not.
> The
> > > only
> > > way
> > > > I have been able to get either of these amps to work properly
> in
> > > QSK with
> > > > the VI+ is by retiming the TX Out signal from the VI+. TX
> Out
> > > from the
> > > Omni
> > > > VI+ is enabled in a timely fashion on key down so there is no
> > > leading edge
> > > > problem but it is disabled about 15-20mS too soon and so
> causes
> > > tail end
> > > > clipping big style. The loop circuit on the VI+ appears
> timed
> > > specifically
> > > > for Ten Tec amps.
> > > >
> > > > Bob, 5B4AGN
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Duane A Calvin" <ac5aa@juno.com>
> > > > To: <tentec@contesting.com>
> > > > Sent: Tuesday, August 10, 2004 7:44 PM
> > > > Subject: Re: [TenTec] dit chopper IC-7800
> > > >
> > > >
> > > > > Hi Tommy,
> > > > > I don't understand your comment - how can it run
> full
> > > QSK
> > > without
> > > > > a keying loop for the amp? Either something is hot
> switching,
> > > has the
> > > > > potential to, or it's not really running full QSK. Maybe I
> > > don't
> > > > > understand the comment. (Or, maybe the rig is QSK but the
> amp
> > > isn't -
> > > it
> > > > > stays in transmit?) My Orion runs full QSK fine with my
> Alpha
> > > 99, but I
> > > > > don't know at what speed it breaks down. Certainly does
> well at
> > > 40 WPM,
> > > > > which is about as fast as I go.
> > > > >
> > > > > 73, Duane
> > > > >
> > > > > On Tue, 10 Aug 2004 13:45:09 -0400 "Tommy"
> > > <aldermant@alltel.net>
> > > writes:
> > > > > > That's OK Rick, I understand.
> > > > > >
> > > > > > Unfortunately, I think Ten Tec has taken your exact track
> on
> > > the
> > > > > > amplifier/QSK issue. The Orion, with the latest versions
> of
> > > > > > firmware, v1.371
> > > > > > and v1.370, will not work with the Ten Tec Titan 3. Maybe
> > > someday?
> > > > > > But as
> > > > > > you say, high speed CW ops are an extremely small minority
> of
> > > active
> > > > > > hams
> > > > > > and marketing types don't think there are enough sales
> (and
> > > > > > rightfully so)
> > > > > > to worry about that issue or operating the rig in the CW
> mode
> > > much
> > > > > > over
> > > > > > about 50 wpm. However, since you do not need a keying loop
> to
> > > run
> > > > > > full QSK
> > > > > > with Icom gear, that IC-7800 running at 80 wpm last night
> sure
> > > did
> > > > > > sound
> > > > > > excellent.
> > > > > >
> > > > > > Tom - W4BQF
> > > > > >>
> > > > >
> > > > >
> > > > > Duane Calvin, AC5AA
> > > > > Austin, Texas
> > > > > _______________________________________________
> > > > > TenTec mailing list
> > > > > TenTec@contesting.com
> > > > > http://lists.contesting.com/mailman/listinfo/tentec
> > > > >
> > > >
> > > >
> > > > _______________________________________________
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> > > > http://lists.contesting.com/mailman/listinfo/tentec
> > >
> > > _______________________________________________
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> > > TenTec@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > >
> > >
> >
> >
> > Duane Calvin, AC5AA
> > Austin, Texas
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
>
> _______________________________________________
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>
>
Duane Calvin, AC5AA
Austin, Texas
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