Hal- I took your suggestion and sure enough, I can see on the scope that it puts out a string on power up. I'm sure that's why SatStat gives me a "Communications established- please wait" then "Checking echo". But then it all seems to fall apart, because after that, it drops back to "Trying to establish communications" and "No response..." until I power down then back up, and it repeats the cycle.
I don't have any real info on power supply voltages, so I don't know what they should be. On power up, it goes through the cycle of briefly lighting the LEDs on the main board red, ending with the green blinking one on the main board at the same time cycling through the front panel LEDs and ending with just the power LED lit. I can pull it apart and check for caps needing replacement if you think that might be a cause of this. Dave -----Original Message----- From: time-nuts [mailto:[email protected]] On Behalf Of Hal Murray Sent: Friday, November 04, 2016 6:56 PM To: Discussion of precise time and frequency measurement Cc: [email protected] Subject: Re: [time-nuts] Newbie With a Z3801 Problem I would put a scope on the TX line from the Z3801A and power cycle it. I'm pretty sure it prints out the version string on power up. Have you checked the power supplies? Or looked for old electrolytics? -- These are my opinions. I hate spam. _______________________________________________ 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.
