[TenTec] TT Orion: Also SEMI-BK-IN possible ?

[Carl Moreschi]

The Orion "Amp Key" line will go to ground about 20 milliseconds before the
Orion actually transmits a signal.  It will then stay ground for up to a one
second delay after transmit finishes.  This delay is adjustable from 0 to 1
second.   It seems to me that this line provides all the timing that is
necessary to key external equipment and protect it from a transmit signal.
Am I missing something?

There is also a variable QSK delay you can independently adjust for  how
long it takes the receiver to come back on after transmit is finished.  This
delay is also adjustable from 0 to 1 second.

Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: <K3BU at aol.com>
To: <tentec at contesting.com>
Sent: Saturday, December 27, 2003 11:40 PM
Subject: Re: [TenTec] TT Orion: Also SEMI-BK-IN possible ?


> In a message dated 12/27/03 6:18:13 PM Eastern Standard Time,
> dh0ghu at dh0ghu.de writes:
> >>Of course I agree with Jack that on HF, QSK is an abolute must for
> reliable operation. It has nothing to do with PTT: Be sure, I'll not use
> a PTT for CW contesting, I only have two hands, one for the PC, one for
> the keyer, that's all...)<<
>
> If I understand, you seem to consider PTT to be Phoot To Talk.  PTT line
is
> used by computer to switch system from receive to transmit and vice versa.
With
> bunch of equipment like amplifiers and switching systems for radios and
> antennas, precise control of PTT signal timing allows to fine tune the
system,
> eliminate hot switching, millions of unnecessary cyclings and unnecessary
delays
> as experienced with semi-BK. We do not use PTT for foot switch type
control by
> real feet.
>
> Yuri, K3BU
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