[Elecraft] Clock Accuracy

[Richard Dowling]

I'm curious which way the clock is off, fast or slow?

There is a dedicated clock IC on the front panel board which has a 
fixed capacitor across the 32.768 KHz crystal.  The data sheet for 
the PCF8563 clock IC states that that capicator can made a trimmer to 
set the frequency exactly.  Of course, if the problem is in the way 
the MCU updates the clock, say internally rather than reading the 
clock IC, then errors could accumulate until the MCU reads the clock IC again.

Richard
KL0DR

At 09:24 AM 6/24/2010, John wrote:
>Besides trivializing the subject, has anyone a way to make the clock in the
>K# accurate.  I foind it of value when in places like Kabul where there is
>no access to WWV (for example) and while working a contest (like CQ WWSSB).
>John Kountz, KE6GFF/T6EE
>
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