Greetings,
I am happy to report I have been doing some field testing recently with the RTK postcard and the L1/L2/L5 antenna. After using the correct vertical offsets to ARP in Surpad I can happily report with no site calibration I was able to hit local county benchmarks 0.04’ horizontally and numerous NGS vertical benchmarks 0.02’ to 0.05’ vs published geoid 18 values.
I did these tests using Oregon’s DOT RTN network. I have since purchased an additional setup to use LoRa and a base to see what kind of accuracies can be achieved vs a regional RTK network.
I also plan do some static observations and see what opus results can be obtained.
Overall if someone is looking for an affordable RTK solution this is a great one. If Quectel can fix GST decimal places then I believe it will be rock solid.
I tested this setup against a Carlson Bx8 and Topcon Hyper GNSS antenna and checked better on a known benchmarks using the same RTN network.
Sincerely a very happy Surveyor