[time-nuts] Trimble Thunderbolt off freq?

J. L. Trantham jltran at att.net
Sun Sep 12 11:50:28 UTC 2010


What program are you using to monitor it with and what does it say?

Joe

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Bob DeVarney W1ICW
Sent: Sunday, September 12, 2010 2:02 AM
To: w1icw at myfairpoint.net; Discussion of precise time and frequency
measurement
Subject: [time-nuts] Trimble Thunderbolt off freq?




On 9/12/2010 3:00 AM, Bob DeVarney W1ICW wrote:
>  Anyone have problems with a Trimble Thunderbolt being off frequency?
> GPS has been locked for months, so it's not a GPS lock problem. I 
> compared it to another standard borrowed from work, and it appears to 
> be 22.0 HZ high.
> When I use this same standard as a reference for my HP 3586C Selective 
> Level Meter, it reads WWV on 15 MHZ as being 22 HZ high as well, so I 
> tend to believe the borrowed reference is accurate; not the Trimble.
>
> Is there a way in the Thunderbolt software to adjust the OCXO on freq?
> I did not see any hole on the side or top for a trim pot on the OCXO.
>
> Thanks,
>
> Bob W1ICW

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.




More information about the time-nuts mailing list