All I can say is that since the repair was done on my Orion serial number
10C10464 (as outlined in a previous post) in September 2007, I have had no
further RIT/XIT problems. When I took the rig in, I mentioned the various
theories put forward in this forum at that time, including encoder failure.
The distributor thought that, in their experience, it was unlikely to be a
decoder problem. They were correct - it appeared that an old fashioned
re-solder job did the trick, although they also did the v2 mod and updated
the firmware from the original 1.372 to 1.373b5 at the same time. If
(judging from earlier posts) Ten Tec are still in denial about this fault, I
suggest they contact their UK distributor who seem to have more knowledge
and experience of it than they do (and know how to fix it).
73
Reg
----- Original Message -----
From: "Robert Carroll" <w2wg@comcast.net>
To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
Sent: Saturday, July 12, 2008 8:59 PM
Subject: Re: [TenTec] Orion I RIT/XIT problem
> Vince-
>
> During my siege with the RTI problem I found many different things I did
> to
> the radio seemed to make the RIT work--for a little. However I never
> found
> an early or late firmware load made any real difference. The "special"
> load
> TT sent me showed that when the RIT was not working, the RIT was not
> generating proper Gray Code output--in fact most of the time the reading
> was
> not changing. Was it hardware? Was it firmware? No one has even really
> found out--least of all TenTec--but after wrestling with the problem for a
> couple of years I felt pretty sure it was a soldering or plated through
> hole
> issue. Recently someone made the suggestion it was a cable.
>
> Good luck--you'll need it.
>
>
> 73
> Bob W2WG
>
> -----Original Message-----
> From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
> On Behalf Of Vincent Bond
> Sent: Saturday, July 12, 2008 3:34 PM
> To: tentec@contesting.com
> Subject: [TenTec] Orion I RIT/XIT problem
>
> I have serial number 03C10885 with v2.062a and have been experiencing the
> same RIT/XIT problem ever since 2.062a was loaded. I have reset, reloaded
> etc., but the RIT function is intermittent, with the result being that,
> for
> the most part, it just does not work.
> Last week, on a lark I reset the PBT/BW step rate to 50 Hz from 10 Hz and
> the RIT/XIT immediately worked fine for a day or two before it quit.
> During
> that time, If I returned to 10 Hz, it stopped functioning. Reset to 50 Hz,
> it worked. That led me to suspect a firmware issue because the encoder
> worked perfectly. I still think there may be a firmware issue causing this
> problem in many cases.
> Being so busy at work, I have not had the time to play with reloading
> older
> firware versions to see if the problem when away. Perhaps someone with
> more
> free time might investigate that. I hope someone finds the culprit because
> it is exceedingly annoying to use a ncessary control that works only a
> small
> percentage of the time.
>
> Vince K7NA
>
> Date: Fri, 11 Jul 2008 16:11:45 -0400
> From: "John T. Fleming" <W3GQJ@embarqmail.com>
> Subject: [TenTec] Orion I RIT/XIT problem
> To: "'Discussion of Ten-Tec Equipment'" <tentec@contesting.com>
> Message-ID: <9137E7B666414EADA229149425825B18@Core2BigToy>
> Content-Type: text/plain; charset="US-ASCII"
>
> I have a theory on the Orion XIT/RIT problem. I now think the problem is
> with the ribbon cable that is connected to J2B in drawing 81917_3.PDF in
> the
> designator A8. My serial number is
> 06C10363. I wonder what other serial numbers are having the same problem.
> I bought my Orion 9-16-03.
>
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