Well, I want to get some raw measurements and post-process them
just for fun. Taking differential measurements between your receiver
and the nearest reference station could give you <1m positioning
I found a TSIP manual of another Trimble receiver, and it says the
receiver provides the raw measurements packet 0x6F by sending
the command packet 0x6E.
I'm using GAR2RNX to record the raw measurements from my eTrex,
but I cannot put an external antenna to it. The Lassen IQ evaluation
board with USB connection looks a nice alternative if I can get the
measurements from it.