[time-nuts] New Time nut FRK-H repair questions --- IT Works!!

[swingbyte]

Thanks for the help - the manual is great.
I have trimmed the xtal so the control voltage is around 8.5V.  The lock 
output is working - drops from 1.5V to 0.03 volts when locked. 
I only have an old HP5340A with OCXO option as my frequency meter.  It 
reads 10.000000MHz as the output from the FRK.  One thing interesting is 
that before I adjusted the trimmer, the FRK came up at 10MHz from 
power-up, now it approaches from 9.999947MHz but still locks at 
10.000000MHz.   Of course now I have to find a way of calibrating it or 
its going to annoy me like an itch you cant scratch.  I have a GPS 
receiver I have to get going that has a 1PPS output on it.  What would 
be an appropriate way to use this to calibrate the FRK - in my lifetime:)
Also, my FRK as an option for external frequency control.  I couldn't 
find info in the manual on this ( admit I haven't read it fully yet), 
can anyone tell me how these connectors should be used?
Thanks for your help.

Tim
Always wanted my own atomic clock