The EXT T/R delay has nothing to do with the Orion's T/R switching. It is
just for external use.
The Orion's antenna relay must switch on every dit and dah by design. Every
tentec rig I have ever seen works this way since the Tritons. It is a
proven design and works very well.
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "Joe Giacobello" <k2xx@swva.net>
To: <tentec@contesting.com>
Sent: Friday, March 26, 2004 5:05 PM
Subject: Re: First dot (was Re: [TenTec] Orion in action)
> Carl, thanks for your reply and the enlightenment. I now understand
> what you were actually referring to. Your description of the QSK delay
> makes sense because I can hear the Orion's T/R relay clicking in synch
> with my keying irrespective of the delay setting. So they're only
> controlling the time that the audio's off while the T/R relay follows
> the keying.
>
> I understand the function of the "Ext T/R delay" for the amplifier, but
> would it also control the delay of the relays in the Orion? That might
> solve the limitations on the delay at slower CW speeds that I was
> referring to and also minimize wear and tear on the Orion's T/R relay?
> I'll check it.
>
> 73, Joe
>
> Carl Moreschi wrote:
>
> >No, the QSK delay has nothing to do with this. All the QSK delay does it
> >change the time the receiver audio comes back on after transmitting. The
> >amp relay delay time is controlled by "Ext T/R delay". This is set from
0
> >percent to 100 percent with 100 percent equaling one second. This
control
> >sets the extra time the amp key line stays on after the key line goes
off.
> >It is used to keep the amp antenna relay from coming up and down for each
CW
> >element.
> >
> >The keying problem That I was refering to in the earlier post can only be
> >comtrolled insode the Orion firmware. It relates to how long the
> >transmitter actually transmits compared to how the CW key line is on.
The
> >transmitter keys 20 milliseconds (that 20/1000 seconds) after the CW key
> >line comes on. In order to make up for this loss of 20 milliseconds, the
> >transmitter should continue to stay on for 20 milliseconds after the key
> >line goes off but it doesn't. It only stays on for another 12
milliseconds
> >making all CW elements short by about 8 milliseconds. I see this as a
> >firmware bug that should be corrected.
> >
> >Carl Moreschi N4PY
> >Franklinton, NC
> >----- Original Message -----
> >From: "Joe Giacobello" <k2xx@swva.net>
> >To: <tentec@contesting.com>
> >Sent: Thursday, March 25, 2004 3:17 PM
> >Subject: Re: First dot (was Re: [TenTec] Orion in action)
> >
> >
> >
> >
> >>Carl and others, I am a new Orion owner and I have been trying to extend
> >>the relay delay (or on time) by increasing the "QSK delay" setting. I
> >>am practically at a 100% and still the delay is quite short, especially
> >>for speeds below 20 WPM. When you refer to holding "the keying output
> >>for about 12 seconds", are you talking about this setting? I presume
> >>that this setting is the only way to control the CW delay for non-QSK
> >>operation? If so, it is a serious limitation.
> >>
> >>73, Joe
> >>
> >>Carl Moreschi wrote:
> >>
> >>
> >>
> >>>Yes, they are all shortened. In the tentec keying scheme, all dits and
> >>>
> >>>
> >dahs
> >
> >
> >>>are the first one. The Orion needs to keep the keying held down for
> >>>
> >>>
> >about 8
> >
> >
> >>>milliseconds longer when the key line is released. The current scheme
> >>>
> >>>
> >keys
> >
> >
> >>>the radio about 20 milliseconds after the key line is grounded but only
> >>>holds the keying output for about 12 milliseconds after the key line is
> >>>released. This should be able to be corrected in a future firmware
> >>>
> >>>
> >release.
> >
> >
> >>>Carl Moreschi N4PY
> >>>Franklinton, NC
> >>>----- Original Message -----
> >>>From: "Carter Grabarczyk" <k8vt@ameritech.net>
> >>>To: <tentec@contesting.com>
> >>>Sent: Thursday, March 25, 2004 12:58 PM
> >>>Subject: First dot (was Re: [TenTec] Orion in action)
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>Tommy wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>And yes, there is some clipping on the first couple of dot on the
> >>>>>Orion.
> >>>>>Tom - W4BQF
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>Been reading about this topic for awhile. I also saw the keying
picture
> >>>>in QST with the first dot shortened.
> >>>>
> >>>>However, I'm confused. With QSK, isn't *every* dot the first dot?
(thus
> >>>>if one was shortened, you would think they would all be shortened).
> >>>>
> >>>>73/Carter/K8VT
> >>>>
> >>>>_______________________________________________
> >>>>TenTec mailing list
> >>>>TenTec@contesting.com
> >>>>http://lists.contesting.com/mailman/listinfo/tentec
> >>>>
> >>>>
> >>>>
> >>>>
> >>>_______________________________________________
> >>>TenTec mailing list
> >>>TenTec@contesting.com
> >>>http://lists.contesting.com/mailman/listinfo/tentec
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>_______________________________________________
> >>TenTec mailing list
> >>TenTec@contesting.com
> >>http://lists.contesting.com/mailman/listinfo/tentec
> >>
> >>
> >
> >_______________________________________________
> >TenTec mailing list
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> >http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
> >
> >
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