I am vary aware of the unlocks and their prices from Trimble. If you think that is bad lookup enabling GPS2 to RTK on a TMX.
Since he reported 18-20 satellites in WAAS it has to be unlocked. Most I have ever seen without GLONASS is 12 or 14.
I was using a FMX/FM1000 (RTK and GLONASS unlocked) with my M2 base/radio setup. When fixed, I was only tracking 8-12 satellites. According to the Trimble Online GNSS page, I should have had over 16. I was in open condition, no obstructions. When I checked which satellites where being used in AgRemote, none where GLONASS.
I haven’t been back to my project in some time now. Sometimes, life gets in the way.