Hi Duane,
I used to run an IC-781 and my Titan 425 at very high speeds and full QSK.
Of course the Titan 425 (and the Titan 3) incorporates the KEY IN and the
KEY OUT circuitry. You simply connect your keyer into the Key In connector
on the amplifier, which closes the series of relays in the amp, then have
the Key Out line actually connected to your Key input on your xcvr, in this
case, the IC-781. Worked excellent for me because the IC-781 would switch
fast enough to drop the RF into the amp, before the amps series of relays
all opened. I could hear my QSO partner breaking me, mostly between words,
at speeds in excess of 100 wpm. I ran this set up for almost two years, so
for sure there was no hot switching going on.
It's turning out that most hams who are using an Orion, use the Amp Key 1
or 2 to switch their amps. And they are not using the Orion's Keying Loop. I
have to revert to firmware v1.369 for my Orion and Titan 3 to operate when
using the Keying Loop of the Orion.
Tom - W4BQF
----- Original Message -----
From: "Duane A Calvin" <ac5aa@juno.com>
To: <tentec@contesting.com>
Sent: Tuesday, August 10, 2004 3:44 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
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