Howdy, I recently received a single Reach GPS with antenna. Ultimately it is to be used for PPK applications on my drone. For now I am just testing it in my backyard to get a sense how good it is. To that purpose I just finished a 24hr static collect of raw data and submitted that data online to Natural Resources Canada PPP to get a corrected position. I have been doing this for years with Survey grade L1 and L1/L2 receivers to obtain positions in Northern Canada.
So … results from the Reach were DAMN good for an L1 receiver!
95% Error Estimates:
Lat : .161m
Ell. Z: .299m
Note: I’m currently determining the position of the above point with a dual frequency unit so I can get the real world difference. I’ll report that later.
Looking at the graphs it seems that about a 6-8 hour collect is required to get an optimal result. These results are as good as anything I have got from an L1 receiver. I image a better antenna might help in reducing the number of hours needed to get optimal results. I am currently testing a $10,000+ Trimble Geo 7x (L1/L2) and PPP results are very similar (Trimble only lets you export out L1 for this receiver). .
Now if Emlid could just release a “Reach Dual (L1/L2)”, then we are good to go!
So for those mapping in the great wild, far away from active base stations, just be patient and let your base collect for 8 hours.