[TenTec] Re: slight frequency shift

[jpgabbard]

Hi Paul, it has to do with the micro processor being unable to keep up with 
the keyer speed and compensating for any frequency change. I have heard a 
few cures but simply use an outboard keyer should prevent it. John  KF7OM
----- Original Message ----- 
From: "Paul Gates, KD3JF" <pearly732003 at yahoo.com>
To: "Discussion of Tentec equipment" <tentec at mailman.qth.net>
Sent: Wednesday, March 07, 2007 4:42 PM
Subject: Re: [TenTec] Re: slight frequency shift


>I can remember when the Scout first came out hearing of that problem and I 
>remember Ten Tec has a reason for it....
>
>  Paul, KD3Jf
>
> jpgabbard <jpgabbard at pahrump.com> wrote:
>  Hi Bill, thanks for your reply.well, thats interesting.How long ago did 
> you
> have this done?
> I was told there is a mod that will cure this and now I am really mixed
> up! You know Bill, its not noticable all the time and only during 
> receive,I
> have asked other Hams if they hear any frequency shifts and they all say 
> no.
> The mod consists of replacing 3 caps in the PTO but now, maybe i should 
> ask
> ten tec and tell them what they did for yours? i'll have to give this some
> more thought. Maybe that mod is for drift instead of shift,which is a
> different thing. Anyway, thanks for the info, its something to chew on!
> Best wishes and have a good day.73, john kf7om
> ----- Original Message ----- 
> From: "Bill Cotter"
> To: "Discussion of Tentec equipment"
> Sent: Wednesday, March 07, 2007 12:16 PM
> Subject: [TenTec] Re: slight frequency shift
>
>
>> John,
>>
>> I had this problem with my Scout from day-1. After years of blaming it on
>> crummy design, etc and ignoring it, I sent it back to TenTec for repairs.
>> I was told that the 'processor code' was mis-matched for the filter unit
>> installed and was charged $80 for replacing the processor.
>>
>> I called to confirm what I read, and was told that each Jones filter has
>> to be matched to a CPU in the set. Somehow during production the match
>> wasn't made, and the wrong CPU installed. The ROM-code for the filter
>> didn't match.
>>
>> After using the radio for many years since, the problem never recurred. 
>> Go
>> figure.
>>
>> 73 bill n4lg
>>
>> At 07:47 PM 3/6/2007, jpgabbard wrote:
>>>I have a TT Scout 555 and like it very much,it has no real issues but at
>>>times I have noticed a small frequency shift while in the receive mode on
>>>CW.
>>> Leads me to believe its a shift in the house current as it is more
>>> apparent on some days than others.Does anyone else with a scout notice
>>> this problem and have a comment or a cure?
>>> Thanks, John KF7OM
>>>_______________________________________________
>>>Tentec mailing list
>>>Tentec at mailman.qth.net
>>>http://mailman.qth.net/mailman/listinfo/tentec
>>
>>
>> ----------------------------------------------------------
>> Bill Cotter, N4ALG E-mail: n4alg at qx.net
>> 173 Carolyn Lane Home: (859) 887-5563
>> Nicholasville, KY 40356-9340 Work: (859) 323-6474
>>
>> ARRL ARCI #9878 QRPl #1646 QCWA #29393 FISTS #4535
>> ---------------------------------------------------------- 
>>
>> _______________________________________________
>> Tentec mailing list
>> Tentec at mailman.qth.net
>> http://mailman.qth.net/mailman/listinfo/tentec
>>
>
> _______________________________________________
> Tentec mailing list
> Tentec at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/tentec
>
> _______________________________________________
> Tentec mailing list
> Tentec at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/tentec
>