[GPS_Standard] Another ZAZ Standard comes to life

[Bert, VE2ZAZ]

Hi Mike,

Welcome to the world of higher accuracy!

Yes, you are probably expecting too much too soon. Dou you have access to
another source of 10MHz reference? Do you copy WWV (or any other known-good
radio station carrier) on 10MHz? Did you perform a coarse adjustment using
the multi-turn potentiometer on the oscillator? At this point you don't know
if you are within one 0.5 Hz of the nominal 10.0000MHz, or do you? Remember
that this is your pull in range for that oscillator. If you are outside of
that range, the FLL will never be able to disciplin it...

Let us know the outcome...

Thanks,

Bert, VE2ZAZ


----- Original Message -----
From: "Mike W" <mike at pencoys.org.uk>
To: <gps_standard at mailman.qth.net>
Sent: Sunday, May 27, 2007 9:54 PM
Subject: [GPS_Standard] Another ZAZ Standard comes to life


Many thanks to Bert for the project.
Its taken a while and its still not properly boxed but mine seems to be
working as it should, its been locked with default settings for about 5
hours
now but I have noticed that the DAC is always creeping up ( currently
0207B )
with never a drop in DAC value. The ocxo, an HP10544A, has been alive for
over
24 hours now so I doubt its a temp problem. Am I expecting too much too
soon?.
72, Mike G8NXD
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