General comment on backing up old files. We've used Geodimeters since 1981. All our work gets backed up in several different formats and once in a (ve...
Correct. For any special targets we make using reflector tape we always run them over several distances against our calibration set prism. If possible...
@ramses?ÿ Agreed. The other problem with a cylinder is that if there is a partial obstruction to the signal you measure well down one side without re...
Being pedantic : you resect reflectorless from reflective sheet ... Agree with your 45 angle and general comments, but the problem here is that of tr...
Does this sketch help? ?ÿ
Typically it was very small, perhaps a couple of seconds (which, I suppose, is quite a lot with?ÿ T3). Not a problem if it was consistent, but we did ...
Some 50 odd years ago when I first started, when we were observing primary control (with a T3) we used to swap observers after every pair of FL/FR jus...
Assuming you don't want to access the targets very often then using 360 prisms is going to be very expensive. A much cheaper option (and an insurance ...
And as a test of your ability to get it out again once it gets stuck! Never stick it in beyond the nuckle. ?ÿ
As described; those are traverse stations, although they should last until the concrete is destroyed. For longer lasting ones in concrete I use the co...
Sorry for delay in replying - it's been Platinum Jubilee weekend over here, so a four day holiday. As you say - length. I said screw, but they are ac...
Not always, some of them just are....
I've used 2.5mm. on concrete surfaces where heavy abrasion is likely and any normal marker would get dragged out. 2.5mm. drill hole, to about 20mm de...
Newcastle (the one in England!)
With all boundary disputes the most importasnt aspect is to explain to both parties that it is irrelevant as to who is paying: you are there to look a...
@rover83?ÿ In my experience whatever you do isn't "what we normally get". The least amount of complaints seem to come if you just annotate each manho...
Daft but obvious question - are you running anything in the survey truck which could be causing interference? Try turning the engine off.