[TenTec] Fw: Omni 6+ keyer instability

[Jack Mandelman]

Thanks to all who responded.  I found the fix described in the TT Wiki 
to be most helpful.  I formed a small loop at the end of each lead of a 
0.01uF cap, placed the outer pins of the header to the connector through 
the loops and reconnected the connector.  No soldering involved and the 
keyer is now stable.

Jack K1VT


----- Original Message ----- 
From: "Alan Sewell" <alan.n5na at gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Wednesday, December 05, 2007 11:16 PM
Subject: Re: [TenTec] Omni 6+ keyer instability


> Jack,
>
> You might give this a try.
>
> http://www.tentecwiki.org/doku.php?id=563keyer
>
> 73,
>
> Alan  N5NA
>
> http://www.tentecwiki.org
>
>
>
> Jack Mandelman wrote:
>> Several days ago I acquired a beautiful Omni 6+ (564), and love the
>> radio  One glitch that I notice is that occasionally the speed of the
>> keyer will  vary slightly (speedup by maybe 1-2 wpm).  Since the 
>> effect
>> seemed to be more prevalent when running my linear amplifier vs 
>> barefoot
>> I suspected rfi getting back into the keyer.  I then wrapped 7 turns 
>> of
>> the cable from my paddle through a type 31 split core ferrite, right
>> where the cable is connected to the radio.  Although the keyer
>> instability now occurs less frequently, it still does occur.  It's 
>> not a
>> show stopper, but is annoying.
>>
>> Any comments/suggestions are welcome.
>>
>> Thanks.
>>
>> Jack K1VT
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>>
>>
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