Interesting development from Garmin!
That could be fun. Submeter Garmin alert!
It has been possible to log Rinex from a number of Garmin units for a while now.
I have done so quite successfully.
Google GAR2RNX if you are interested.
But up until now the Garmin units only track the L1 signal, so post processed accuracy is at best only around 100mm (that's around 4" for the metricly challenged)
What averaging time for 100 mm, and what is the ultimate limit for very long occupations?
That looks like a left handed ProMark 2. The ProMark 2 had the same insides as the mapping grade Map 330. The ProMark 2 could log the observations over time and connect to a precise antenna. I would not be surprised if it were using the old Ashtech Data Logger program.
Paul in PA
AH? But what part of the L1 signal is being used. As I recall the very early ProMark X was only using the L1 C/A code (coarse acquisition) not the P code (precise).
The first Trimble 4000S required an external computer for data logging, so nothing is really new.
Paul in PA