Hello, I am new to this, so advice is welcome.
I had a Trimble thunderbolt running the whole summer and when checking today, it seems I lost satellite tracking. But I don't know what is wrong or how to diagnose it. I tried a power cycle and factory reset. In the thunderbolt monitor 1. all alarms are green. 2. signal levels (SV and AMU) are all empty with a question mark. 3. I seem to get an accurate time. 4. the timing outputs seem be ok and quite stable, nothing compared to a first start. 5. I get a GPS position. 6. RCVR mode = (7) Overdet. Clock (time) 7. GPS status = (0) Doing fixes It seems the time is getting in, but no satellite fixes. I checked the bias of the antenna, it was about 5 volts. What could be wrong? Or how could I check it further? The GPS antenna is about 5 meters from the house but only about 50cm from the ground. Could this be seasonal? Is my house blocking the signal this time of year? I added some screenshots on the EEVBlog forum: https://www.eevblog.com/forum/metrology/trimble-thunderbolt-nu-satellites-12 8752/new/#new I'm a bit lost to be frank. Thank you. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.