[Elecraft] K3S 10MHz GPSDO Frequency & Time?

[Ron D'Eau Claire]

The clock has its own oscillator that runs from the battery inside your K3S.

73, Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
MaverickNH
Sent: Saturday, August 27, 2016 6:25 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K3S 10MHz GPSDO Frequency & Time?

I have the K3EXREF and XTCXO3-1 installed on my K3s and have a Jackson Labs
LC-XO-Plus GPSDO attached to the factory-installed port. The config setting
REF*CAL shows the * to be blinking, indicating data is being received.

I tuned into WWV 10MHz and found that my K3s time was pretty far off, based
on the audible signal. Using Config:Time, I can adjust the time to match the
audible beat. I guess the K3EXREF address frequency but not clock time?

I have a separate GPSDO running from ToyNTP http://www.dxatlas.com/ToyNtp/
to keep my PC on time to less than +/- 50 microseconds. There's some high
latency somewhere... But digital modes like WSPR have adequately accurate
reference time.

Bret/N4SRN