Hi Phil, Would appreciate additional info please.
I'm trying a 24 hour run now with the XO unit just in case I never let it run long enough previously. Also it's all buttoned-up just in case some external RF source was disturbing it previously. The only connections are 24 VDC & the antenna. The Fault & No GPS lamps are on & there is NO 15 MHz present on the front panel SMA connector. With a scope I see no activity on J5. Interestingly, the 5 VDC for the antenna comes from the daughter board, NOT the GPS receiver. This verified by measuring 5 VDC on the TNC connector with the GPS receiver unplugged. I guess this allows them to sense an antenna fault. I tried various dummy loads (resistors) to simulate from about 10-80 ma antenna loads. The fault lamp never extinguished. Maybe I really have a faulty XO unit?? Are the RS-485 connections on J5 2-wire or 4-wire?? Has anybody managed to make any sense of the data &/or commands?? REMartinson, N1VQR -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Phil Staton Sent: Thursday, February 01, 2007 6:53 PM To: [email protected] Subject: [time-nuts] Lucent RFTG-m-XO Briefly: Leave it running for at least 24hrs. The 15MHz will slowly get on freq. Countup is available on 1pps socket. more when I have time _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
