[time-nuts] Thunderbolt not seeing satellites

Bob Camp lists at rtty.us
Thu Jun 10 17:19:02 EDT 2010


Hi

I would certainly check the solder connections to the RF and power connectors on the PC board. Some of them apparently didn't get a real good solder job when they were new.

Bob


On Jun 10, 2010, at 3:09 PM, Steve wrote:

> Hi all,
> 
> I have used a Trimble Thunderbolt for several years as a source for accurate 10MHz signals for counters and signal generators. I have occasionally looked at the Thunderbolt with a laptop and Lady Heather, but have largely treated the Thunderbolt as a plug-and-play-and-forget-about-it device.
> 
> Several weeks ago I acquired one of the fluke.l monitors and attached it to the Thunderbolt, placing the fluke.l in a location such that I see it every time I walk into my shop. To my dismay, after watching the fluke.l for a while, I discovered that my Thunderbolt rarely sees satellites. I then began more intense monitoring with Lady Heather, finding that the Thunderbolt will on rare occasions show one satellite as usable, most of the time none.
> 
> Another Thunderbolt, purchased in May, 2008, when they were sold on this list, routinely see 4-8 satellites when connected to the same antenna.
> 
> Input voltage to the poor performing unit is about 28VDC. I did the tboltmon.exe Factory Reset with no discernible difference in performance. It is the Thunderbolt model in the aluminum housing with the red and black Trimble Thunderbolt label on top.
> 
> Any thoughts as to what's wrong with it?
> 
> Steve
> 
> -- 
> Read The Patriot Post    Vertitas vos Liberabit
> http://patriotpost.us/subscription/
> 
> 
> _______________________________________________
> 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