The AMP KEY lines should come up immediately. This does not need to be
user settable. This gives 20 milliseconds for the amp relays to transfer
before power is applied. The delay for how long the amp key line stays up
after keying is over is adjustable from 0 to 1 full second.
Carl Moreschi N4PY
Franklinton, NC
----- Original Message -----
From: "JerryVan" <jerryvan@sssnet.com>
To: <tentec@contesting.com>
Sent: Friday, March 26, 2004 4:40 PM
Subject: [TenTec] Re: TenTec Digest, Vol 15, Issue 69
In addition to the need to lengthen an element to compensate for the leading
edge delay as Carl describes I am wondering if it would be worthwhile to
suggest to TT that the leading edge delay be adjustable for us AMP KEY 1 and
AMP KEY 2 key line users? The delay is longer that I would prefer. I've
measured my delay to be about 24-25 ms which seems to jive with Sinisa's,
YT1NT/VA3TTN, very excellent and complete measurements. It would be nice, I
believe, to allow the leading edge to be user adjustable from 5 ms to a max
of 20-25 ms. which should track the trailing edge delay as described by
Carl.
Jerry N8BM
Date: Thu, 25 Mar 2004 18:54:30 -0000
From: "Carl Moreschi" <n4py@earthlink.net>
Message: 3
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
|