My RTCM, two of then actually on the same Trimble, are loosing lock of late. The output from the RTCM Debug mode 40 is shown below. I read that all zeros was good but I'm wondering 08 and 04 in the last byte mean. Does any know how to decode this? GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 08 GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 00 00 04 07/10/2017 20:08:22.160 GPS signal lost entirely. Starting again... 07/10/2017 20:08:22.160 Host Connection Lost (Pri) (192.168.1.6) GPS-DEBUG: TSIP: ok 0, 9 - 14: 00 00 00 00 00 04 GPS Receiver Active, waiting for aquisition GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 GPS signal acquired GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 07/10/2017 20:08:26.160 Time now syncronized to GPS GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 07/10/2017 20:08:26.500 Host Connection established (Pri) (192.168.1.6) GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 GPS-DEBUG: TSIP: ok 1, 9 - 14: 00 00 00 00 00 00 -- -- Tim