[time-nuts] GPDSO is working

[Bob Stewart]

Hi Chris,

Thanks.  Our setup is a bit different.  My oscillator is the Trimble 34310-T and I'm using an Oncore UT+ receiver board.  What are you using for your RS-232-TTL converter?  I'm looking for one that will look relatively "clean" when I get it mounted on the back of this HP 37203A box..  I'm also interested in the idea of using a USB-TTL converter, but I haven't seen a decent one with the square(ish) socket, rather than the rectangular one.


Bob - AE6RV



>________________________________
> From: Chris Howard <chris at elfpen.com>
>To: Bob Stewart <bob at evoria.net>; Discussion of precise time and frequency measurement <time-nuts at febo.com> 
>Sent: Friday, July 12, 2013 11:32 AM
>Subject: Re: [time-nuts] GPDSO is working
> 
>
>
>
>Hi Bob.
>
>My configuration is:
>
>    - HP 10811-60111 10 Mhz oscillator
>    - Trimble Resolution-T GPS card
>    - VE2ZAZ controller board
>    - homebrew power supplies
>    - RS232 switchable between GPS and VE2ZAZ controller
>    - little e-bay puck GPS antenna on the top of an 8' post outside my window.
>
>I did get the software for the Resolution-T from the Trimble
>site and did a site survey.
>
>My software settings for the VE2ZAZ controller board are:
>
>S: 00E1  (a few seconds more than one hour)
>F: 01    (for this osc the fine adj is not useful)
>L: B1
>H: 10
>W: c8
>N: 0A
>O: 01
>X: 02
>M: 01
>
>I've had the thing running for about a year.
>It took a while to figure out a bad solder joint in
>my oscillator that made the DAC voltage ineffective.
>Since it's been running right I have had the opportunity
>to compare it to a cesium standard and I'm happy.
>
>There is also a mailing list for the VE2ZAZ controller
>where you might find more info:
>
>http://mailman.qth.net/mailman/listinfo/gps_standard
>
>Chris
>w0ep
>