Dale,
Thanks for the info. I’ll tune in WWV on one of my other Ten Tec rigs and zero
beat the Scout counter to it.
Not a big problem but hate to have to keep tuning 100 Hz above the station I’m
working on the air.
73, Winston K4CWQ
Sent from my iPhone
> On Dec 22, 2018, at 8:50 PM, Dale Putnam <daleputnam@hotmail.com> wrote:
>
> Hi Winston,
> The trimmer you see, is what is used to zero beat with WWV to calibrate the
> counter.
> Easy to do, with a rx tuned to WWV on 10mhz, and lightly couple a bit of
> signal from the counter
> into the rx also.. nice beat note can be brought down to exactly zero beat.
> Good Luck,
>
> Have a great day,
>
> Dale - WC7S in Wy
>
> "Actions speak louder than words"
>
>
> ________________________________
> From: TenTec <tentec-bounces@contesting.com> on behalf of Winston
> <jones_winston@bellsouth.net>
> Sent: Saturday, December 22, 2018 6:47 PM
> To: tentec@contesting.com
> Subject: [TenTec] Scout Frequency Error
>
> I have Ten Tec 555 Scout with a frequency display that reads 100 Hz high on
> all bands.
>
> Looking at the schematic of the counter logic board, I notice a trimmer cap
> (4-20 pf) in parallel with the 4.0 MHz crystal in the microprocessor circuit.
> It is labeled C3 on a pictoral of the board.
>
> Is this the control I would adjust to bring the counter readout to the
> correct frequency?
> If so, could this by accomplished by adjusting it to zero beat while tuned a
> known frequency, such as WWV at 10 MHz?
>
> I’m not familiar with logic circuits, so wondering if it’s a simple
> adjustment or something that needs to be done by a technician in a
> well-equipped shop?
>
> Any help would be appreciated.
>
> 73, Winston K4CWQ
>
> Sent from my iPhone
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