Hi Bob, Thanks for the suggestions. I am using a Quadtech SS-100 direct USB-Serial cable with Prolific drivers as a direct connect from TBolt to PC. Maybe I should try a direct serial to serial without the USB adapter. If still an issue then I will reflow the DB9 connector in the TBolt.
73 Jerry, NY2KW -----Original Message----- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob kb8tq Sent: Tuesday, August 29, 2017 12:08 PM To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: Re: [time-nuts] Bad TBolt Crashing LH? Hi I would blame the usual “coms error” stuff and dig into that. Bum cable / loose cable is number one on that list. Connectors (on either end) coming unsoldered from the pc board would be next …. Bob > On Aug 29, 2017, at 10:30 AM, Jerry <jster...@att.net> wrote: > > Need some more help figuring out why Lady Heather keeps crashing. I > think it may be a flaky Thunderbolt but I only own one. The PC is an > i5 Intel with 8Gb memory and nothing running in background. The log > sequence before crash is first time stamp erros where the log shows > within 1 sec the TBolt jumps from 6 or 7 Sats to zero. Then after a > few more timestamp errors, the date gets corrupted ending with bad > RAM, Bad Osc, etc. If I open LH again (and do nothing to the TBolt) - > everything looks good again for about 10-15 minutes and it all repeats again. > > > > This log began with: > > > > # 14:27:28.000 UTC 29 Aug 2017 - interval 1 seconds > > # > > # tow pps(sec) osc( ppb) > dac(V) temp(C) sats > > 14:27:28 224866 -8.51365e-008 -0.023564 > 1.196032 42.660358 8 > > > > [similar as line above.....for about 10-15 mins] > > > > After skipping some time stamps it becomes: > > > > # 09:39:47.000 UTC 07 Mar 2019 - interval 1 seconds > > > > Then it goes back to current UTC sometimes with 7 Sats some errors on > 0 or 3 > Sats: > > > > #! time stamp skipped. t=229340387000.000 last=181406402001.000 > err:47933984999 ms > > # > > # 09:39:47.000 UTC 07 Mar 2019 - interval 1 seconds > > # > > # tow pps(sec) osc( ppb) > dac(V) temp(C) sats > > 09:39:47 225605 -8.1407e-008 0.110356 > 1.196165 42.362377 7 > > # > > # 14:39:50.000 UTC 29 Aug 2017 - interval 1 seconds > > # > > # tow pps(sec) osc( ppb) > dac(V) temp(C) sats > > 14:39:50 225608 -8.08732e-008 0.106356 > 1.196165 83.500000 0 > > #! time stamp skipped. t=181406392001.000 last=181406390000.000 > err:2001 ms > > > > Then it goes into 'new receiver mode' and then 'new discipline mode' > while > 3-7 Sats are visible. This goes on for another few minutes until > finally it shows a series of further corruptions, with minor alarms ending : > > #! year error: 60404 > > #! time stamp skipped. t=1601332636481001.000 last=181406509000.000 > err:1601151229972001 ms > > # > > # 13:14:41.001 GPS 15 Feb 52756 - interval 1 seconds > > # > > # tow pps(sec) osc( ppb) > dac(V) temp(C) sats > > 13:14:41 225728 -6.68514e-008 0.141315 > 1.196117 42.588669 5 > > # > > # 14:41:58.001 UTC 29 Aug 2017 - interval 1 seconds > > # > > # tow pps(sec) osc( ppb) > dac(V) temp(C) sats > > 14:41:58 225736 -6.60375e-008 0.094983 > 1.185647 42.588669 0 > > #! year error: 1814 > > #! time stamp skipped. t=-6224635078999.000 last=181406518001.000 > err:-6406041597000 ms > > 14:42:01 5898563 -1.49314e+006 -0.000000 1.196108 > 42.278618 0 > > #! new gps status: TRAIM rejected fix: at tow 5898563 > > #! new discipline state: ?0B?: at tow 5898563 > > #! new minor alarm state 00E7: OSC age alarm Antenna open Survey > started No saved posn LEAP PENDING! : at tow 5898563 > > ... > > .. > > ... > > 14:43:27 225825 -5.45551e-008 0.064319 > 1.196070 40.071625 5 > > #! new critical alarm state AC00: : at tow 225825 > > #! new minor alarm state 0000: OSC age normal Antenna OK Discipline OK > Normal op mode Saved posn OK EEPROM data OK Almanac OK : at tow > 225825 > > 14:43:27 225825 -5.44649e-008 0.071280 > 1.196070 44.131538 5 > > #! new critical alarm state B375: ROM:BAD Power:BAD OSC: BAD: at tow > 225825 > > #! year error: 21719 > > #! year error: 45931 > > #! year error: 45932 > > #! year error: 11276 > > > > > > Thanks in advance for any help > > > > Jerry NY2KW > > > > _______________________________________________ > 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. _______________________________________________ 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.