Hi If the 3815 is similar to the other HP boxes, there's a GPS receiver card in it. Some are derivatives of the Motorola UT series, some come from other manufacturers. Swapping the cards between two boxes might speed up the troubleshooting process.
Bob -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Morris Odell Sent: Monday, August 06, 2012 6:19 AM To: time-nuts@febo.com Subject: [time-nuts] HP Z3815A manual/info needed Hi all, A few of us down here in Oz have HP Z3815A GPS disciplined frequency standards running. One of my friends, who does not belong to this group, has had a fault develop in his unit which seems to be in the GPS receiver section. The serial port terminal program indicates that all is well but no sats are being received even with an antenna change. Are there any manuals or service information available for these units? Even a block diagram? Any help gratefully accepted! Regards to all, Morris VK3DOC _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.