I've pulled that Omni 6+ temporarily out of service, so can't check if
it's all bands - I believe so. My first measure is to replace C31,
the trimmer cap for the 20Mhz master oscillator. I distinctly
remember that when I aligned it recently, it was "all over the place"
and badly needing replacement.
Assuming that doesn't fix the warble (I don't expect it to but you
never know), I will next monitor each of the local oscillators and
BFO in turn (using a general coverage receiver) while the Omni 6+ is
tuned to a carrier so the warble is easy to hear. I will check if I
hear a simultaneous warble in any of the oscillators, and take it from
there.
Unless somebody has a better idea on troubleshooting?
73, Barry N1EU
On Fri, Nov 4, 2011 at 12:54 AM, Scott Cowling <scotty@tonks.com> wrote:
> Hi Barry,
>
> This might not be very helpful, but I have had the same problem
> (although not as pronounced) with my OMNI VI+ for a few years now.
>
> It appears on both TX and RX, but it is band-dependent. It happens
> on 30M, but not on 40M or 20M.
>
> Does your "warble" appear on all bands, or just some bands?
>
> I am guessing that this is an intermittent connection (wiring
> harness, connector or solder joint).
>
> I operate mostly on 40 and 20, so I haven't bothered to fix it. Maybe
> now is the time. :-)
>
> 73,
> Scotty WA2DFI
>
>
>
>
>
> At 12:00 2011-11-03 -0700, you wrote:
>
>
>>Message: 4
>>Date: Wed, 2 Nov 2011 21:37:43 +0000
>>From: Barry N1EU <barry.n1eu@gmail.com>
>>Subject: [TenTec] Help with Omni 6+ rx warble
>>To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
>>Message-ID:
>> <CAFmfzDu_+6ZWQYR3T329OynCEFPLtBFovg6F7jbo_9_HqHP9dw@mail.gmail.com>
>>Content-Type: text/plain; charset=UTF-8
>>
>>I'd appreciate some help troubleshooting a pronounced hitch or warble
>>in the received tone, happening regularly about every 1.5 seconds. It
>>occurs in cw, lsb and usb. Please have a listen - this is 10 sec CW
>>plus 5 sec USB tuned to a carrier:
>>
>>http://n1eu.com/omni6_warble.mp3
>>
>>Can anyone provide some helpful troubleshooting tips?
>>
>>Thanks & 73,
>>Barry N1EU
>
>
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