[Elecraft] Clock loses time
Matt Zilmer
mzilmer at verizon.net
Sun Dec 30 10:19:56 EST 2012
There is a lot of variation in the RTC's oscillator's frequency. I
know 4 or 5 K3 owners, and all theirs have different errors. Mine is
slow by about 1 second per day, but one of the guys has his fast by
about 3 seconds per month.
You may be able to parallel a trimmer of 2-4 pF at the capacitor near
the 32 KHz crystal, but this will only help adjust in one direction.
My solution is to periodically sync the PC time with GPS time (about
twice a week), then use the K3 Utility to set the K3's time. Of the
two, the laptop is off by a greater amount. You can also set your PC
to sync with NIST time standards using NTP. On Win XP, this is
limited to once per week, but Win8 may have better granularity in its
options.
73,
matt W6NIA
On Sun, 30 Dec 2012 08:13:36 -0600, you wrote:
>Mine is about 2 secs per month. Having come from the 'wind-up' era, this is great.
>
> ----- Original Message -----
> From: WO0W
> To: elecraft at mailman.qth.net
> Sent: Saturday, December 29, 2012 11:50 AM
> Subject: [Elecraft] Clock loses time
>
>
> The clock on my K3 loses time faster than any of the cheap watches I've
> used in several years and that is a nuisance, as I would like to use the
> clock to lot my QSOs.
>
> Is there any fix for it?
>
> 73, WOØW
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