I believe I have a couple of copies of the Land Survey Systems book, give me a day or two too locate them, willing to part with one.

Have you tried this site?WinTEQC Editor (silkwerks.com) TEQC is UNAVCO's GNSS preprocessor

I had the same issue with my R8 Model 2's, it is related to the GPS rollover. The fix is to upgrade to firmware version 4.43 if your warranty date is ...