[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812...

[Bob Stewart]

Hi Anthony,
Thanks for more pics.  Was there any indication of where the 10MHz gets its signal?  Could you see a trace, or did I miss that in the pics?  I'm a bit too ham-fisted to go prodding around in mine, so I've left it closed after an initial urge to see the top of the board.

Bob
     From: Anthony Roby <aroby at antamy.com>
 To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
 Sent: Sunday, October 26, 2014 12:30 PM
 Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812...
   
I pulled both boards out of the cases and have uploaded some shots of the undersides of the boards (http://goo.gl/87e8GG).  With the GPS-equipped board powered on (but no GPS attached), there was no single coming out of the pads for the 10MHz SMA adapter.  The only part missing that I see compared to the other unit is U207, which connects directly to the alarm output.  J8 does give a 5MHz sine wave.

Anthony