[time-nuts] HP10544a Technical Info needed

Gerald Molenkamp geraldm at iprimus.com.au
Fri Feb 2 22:36:44 EST 2007

Hi Howard,

Please find attached a schematic of the 10544, hope it helps in anyway.



----- Original Message ----- 
From: "Howard W. Ashcraft" <hashcraft at hansonbridgett.com>
To: <time-nuts at febo.com>
Sent: Saturday, February 03, 2007 10:20 AM
Subject: [time-nuts] HP10544a Technical Info needed

>I am constructing a GPS disciplined OCXO using an HP10544a.  If someone
> has a copy of the HP manual/technical data for this oscillator, I would
> appreciate getting a scan.  I have already received, from a request on
> the HP equipment listserv, a copy of an HP10544 schematic.
> Also, while performing tests on the unit, I detected fairly strong noise
> signals leaking onto my test board.  It appears to be coming from pins
> 5/6 of the HP10544a, which are the EFC control pin and its related
> ground.  A spectrum analyzer shows the noise at about -30dbm and peaking
> around 1.8 mhz.  Has anyone seen anything similar with this OCXO?
> Everything else looks normal.
> Regards,
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