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