Darren Clemons
Well-Known Member
I was in a spot yesterday that was just horrible (not to mention the heat index was 102!). There's just not many spots this Javad will not get, but we were shooting the meanders of a deep drain on a farm and it was in such a deep "V" bottom ravine, we could only get 7/8 Sats at any one time, therefore not much luck with RTK.
I haven't tried this much but toyed with it yesterday on this spot and wondered if anyone had any settings suggestions.
For these "meanderings of the drain" shots my deed called for, I would be more than happy with Code/Float (CDF) shots I believe. From what Shawn and others have said these are much, much more accurate (1' to 2') than the standard "float" shots (3' to 6'). I first went to settings and allowed shots for "fixed, float, DGPS", then turned off my UHF radio so the LS would only be reading CDF (although a few times it wouldn't even give me that it would go to stand alone (STN)). Then with epochs set to 120 it would collect 2 minutes of data averaging the shots as it went. I collected 3 separate shots this way on the same point and they were within about 2.5' of each other.
There was some discussion similar on collecting Dpos sessions. Are three separate 2 minute shots "averaged" better than one 6 minute session?
Has anyone used the CDF to collect anything similar to this and what were the settings and time duration you prefer?
Of course, there aren't many spots I'd be satisfied with this accuracy, but this drain is about 25' wide from bank to bank with the "thread" being at least 6' wide in itself. Meanders like this would not be shot or located exactly the same by any two surveyors anyway so I believe Code/Float collected points would work well.
I haven't tried this much but toyed with it yesterday on this spot and wondered if anyone had any settings suggestions.
For these "meanderings of the drain" shots my deed called for, I would be more than happy with Code/Float (CDF) shots I believe. From what Shawn and others have said these are much, much more accurate (1' to 2') than the standard "float" shots (3' to 6'). I first went to settings and allowed shots for "fixed, float, DGPS", then turned off my UHF radio so the LS would only be reading CDF (although a few times it wouldn't even give me that it would go to stand alone (STN)). Then with epochs set to 120 it would collect 2 minutes of data averaging the shots as it went. I collected 3 separate shots this way on the same point and they were within about 2.5' of each other.
There was some discussion similar on collecting Dpos sessions. Are three separate 2 minute shots "averaged" better than one 6 minute session?
Has anyone used the CDF to collect anything similar to this and what were the settings and time duration you prefer?
Of course, there aren't many spots I'd be satisfied with this accuracy, but this drain is about 25' wide from bank to bank with the "thread" being at least 6' wide in itself. Meanders like this would not be shot or located exactly the same by any two surveyors anyway so I believe Code/Float collected points would work well.