Like I said earlier in this topic, RPTK should always be better than RTK (assuming receivers are aligned to north) and I don’t understand why anyone would choose RTK over RTPK. I am still waiting for someone do the test so that we have the data needed to understand the issue here. J-Field has all the tools needed to this. The LS needs to be setup at least 6 miles from the base with both aligned to north. Then it should be set to auto repeat and allowed to collect points for 24 hours. After the points are collected the average coordinates and Survey Statistics for both the RTK and RPTK need need to be calculated and compared.