); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Mitch:
It turns out that the Trimble first generation GPS receivers require a high gain antenna or an amplifier in the feed line to work properly. So one of the antennas that works for them may be what's needed for your receiver. See: http://www.prc68.com/I/Trimpack.shtml#Ant Have Fun, Brooke Clarke http://www.PRC68.com http://www.precisionclock.com http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam Mitchell Janoff wrote: > Greetings all. I have a Datum 9390-6000 with the Rubidium frequency standard > inside that has been working fine for the past year or so. It requires a > high gain antenna and I'm using a Symmetricom 58532A L1 antenna. With this > antenna I get a "System Check OK" message on the screen. With any other of > my GPS antennas I get a "low signal level" message. I have six other GPS > units operating with various antennas that all work fine. While I don't get > any error messages on the 9390, the unit no longer locks onto the GPS. If I > look at the satellites, the display shows zero for the signal strengths for > each satellite that is trying to track. > > I'm wondering if this is an antenna problem vs. a problem with the 9390 and > is there someway to tell. I don't see anyway to do advanced diagnostics on > this unit, and since the GPS receiver is a propriety unit, I can't > substitute it for another model. > > Is there a recommended antenna that works best with this unit? Since the > repair on the 9390 is quite expensive, I'm wondering if there is another way > around this, possibly trying a better antenna. > > Thanks for your help. > > Mitch. _______________________________________________ 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.
