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Re: [TenTec] Omni 6+ help; 3 problems

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Omni 6+ help; 3 problems
From: Tommy <aldermant@alltel.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 16 Jun 2006 07:57:32 -0400
List-post: <mailto:tentec@contesting.com>
Sometimes guys will disable that keying relay because they don't like the noise and are not aware it can be turned off/on in the menu. Check the voltage going to that relay coil, if the keying voltage is present, check to see if a match stem or something similar is wedged between the relay contacts.

What is actually keying your radio? If your keyers use relay keying, make sure your running a ground wire from the relay to the KEY jack on the radio. If your keyers use transistor switching, check to make sure they are really pulling the key line down to ground. Sometimes keying transistors are not biased well enough to really saturate the collector.

If you have a dual trace o'scope, try looking at your keying waveform and also your RF output wave form. If the RF output waveform is not following the keying input, you surely must have a timing problem with the 'T' line in the rig. But that normally wont happen unless somebody has been 'messing' with the circuitry. Unfortunately that sounds like what is happening since you have both short dots and dashes. BUT even if your keyer works on other rigs, I would start by making sure the input keying has correct timing, and THEN look at the Plus.

As already mentioned, check the two diodes, D2 and D3 on the Low Pass Filter board, or just replace them, for the SWR problem.

Also use caution when looking at the manual as there was some Omni 6 information that accidentally was put in the Omni 6 Plus manual. If you need that info, I could email it to you.

Good luck!!

Tom - W4BQF


At Friday 06:43 AM 6/16/2006, you wrote:
The latest in my Omni 6+ saga: After getting the third comment on "funny
keying" ie. foreshortened dits and dahs, I listened to myself on another
radio using the internal keyer and 2 different outboard
(Idiom Press) keyers and, yep....little bitty dits and short dahs.Also two
other problems have emerged:
SWR meter doesn't work(all other meter functions work fine)....not dead in
the water but EXTREMELY sluggish. (I have an outboard power/SWR meter) The
other thing is I can't get the Omni to key my old SB200. And YES, I went
into the first menu and enabled the relay. The thing is, I don't HEAR the
relay...even with my ear to it and the covers off. My SB200 has all the
Harbach mods to work with modern transceivers...I've been using it with my
K2/100.
    Now this rig is as close to mint as I have seen in a used rig. it is
absolutely squeeky clean inside and out. I went in and made sure all the
little white connectors were snug but I'm very suspicious something got
loose during shipping and is the source of most if not all, of these little
problems.
Receive is stunning, the radio is rock solid stable and everything else
seems to work crisply and instantly. Any ideas? Thanks.
                                       Andy W1AWB


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