[time-nuts] LPRO 101 ADJUSTMENT
namichie at gmail.com
Fri Jul 25 19:08:49 EDT 2008
if you read the manual you will see (there is a partial circuit
diagram) that the external voltage trim is added
to the voltage on the internal trim-pot, so both adjustments have the
I was thinking of using an 8bit DAC to put a very small correcting
voltage on the electrical input while
I use the internal pot to adjust it centre scale or if it runs off
scale. That way I can get microhertz steps
of adjustment from an external circuit without an extreme stability DAC.
cheers, Neville Michie
On 26/07/2008, at 8:51 AM, jshank wrote:
> I recently acquired a LPRO 101 Rubidium Oscillator. After reading the
> manual I see that there are two ways to adjust the frequency 1)
> using and
> adjusting screw on the unit and 2) using the External C-field
> control signal
> at pin J1-7. Has anyone experimented with either method and if so
> method was preferred?
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