[time-nuts] Help with LPRO 101

Geraldo Lino de Campos geraldo at decampos.net
Tue Oct 9 17:42:11 EDT 2007

New to the list, I got a used LPRO 101 and developed a GPS-based
counter to check accuracy of calibration. I found it is almost on the
spot, freq=9.99999998 MHz.

However, I can not adjust the frequency neither by adjusting the
external C-field potentiometer nor by applying a voltage at the EXT.

Am I missing something, or do I have a faulty unit? In this case are
there schematics somewhere, or someone have experience repairing the

geraldo at decampos.net

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