I'm running a SOKKIA SRX with SurveCE on Carlson Surveyor+ data collector. We mainly do Urban/ Semi-Urban cadastral surveys. In one man operation tried to use Robot mode. I've setup a tripod and set the ATP1 360 prism for backsight & foresight. In TRACKING & SEARCH modes the gun locks to slightly off the visible centre towards right. For 100-150m it's about 10-12 seconds. Approximately for 150m - 7mm, for 100m - 5mm, for 50m- 2mm off respectively. If I set 0.0000 for backsight, after locking it becomes 0.0010 - 0.0012 approximately. I need to measure it more accurately as they are my traverse lines. Even in most cases we run open traverses for detail pickup. Tried with two different ATP1 prisms but ended up with the similar results. Then I tried without the data collector but with the gun on SEARCH mode got same results. Again tried with -30mm standard prism got similar results. Could anybody give me a hint about that?
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