[Elecraft] accurate time

[SM6TUW]

> While on the subject of time, where is the oscillator that is used by
> the built-in clock on the K3?

Front panel board.

> Is it adjustable?

No. Sorry...

73,
Lyle KK7P

I consulted the data sheet for the clock circuit PCF8563T (U16 in the K3
circuit diagram ) You can adjust the average deviation over one year less
than +- 5 minutes. Adjustment of one capacitior (C60) is required though.
http://www.nxp.com/acrobat_download/datasheets/PCF8563_6.pdf

I feel that i have less accuracy  on my K3 than my quarz clocks in the
schack so i will try this approach.
Lyle - when will we get a service manual (with PCB layout ) for
this wonderful station?

73
Jan SM6TUW