Yes, I suppose they are free, if your customers are happy with corrections based on a reference hundreds or thousands of miles away.
The GPM3 is designed to fit to the current style of Leica NA2. If you have an old style Wild NA2 then that takes the GPM1. The two parallel plate type...
As Squowse has already said there is no free network correction stream in the UK. Access to those provided by Trimble, Leica, etc., is a subscription ...
For the sort of surveys a small architect does, most would be on a local datum. As long as you have the height difference between your drainage outfal...
Two N2 survive in the very back of our storeroom, one in working order. They were a very nice instrument for precise work, but slow due to the need to...
Beware of Amazon: using their permissions for BVLOS the whole of a new rail route (150 miles) has been flown using drones: Quite why it wasn't done b...
We have an old N3 for just those sort of conditions. When there is vibration it is certainly slow to set up, BUT... a physical bubble has a very slow ...
Tapes and Distos are OK for internal work (sometimes). There are different types of Chartered Surveyor, qualified in one or more of the 6 sectors with...
Very misleading, especially the article quoted. For all practical purposes "The Crown" will never take back land so it is owned by those who have purc...
On the increase in the number of points, shouldn't the price have tripled? And going back again always carries a premium!
I'd partly agree with Squowse -but working by yourself with a manual total station isn't easy of you want to get topo over the whole site. For each sh...
When the "plastic" tribrachs came out we didn't like them and decided the old metal ones (GDF6) were more robust; we built up our stock from ones that...
There's always some element of doubt as to how the rules are interpreted. Following several incidents with DJI Matrice and Inspire suffering power fai...
With a fixed wing this is rarely a problem as it is so quiet nobody notices. However, when we are concerned we put up a few notices just before flying...
That's normal. You can reassure yourself by noting down the angles it is reading to the prism, then substituting a conventional prism and reading the ...
Jim, you misunderstand - you can wear normal prescription glasses, contact lenses or whatever you need to have normal vision.?ÿ What you aren't allowe...
The spec refers to fabrication and then shimming - no mention of machining the working surface. The plates will have a fabrication tolerance of more t...
Mt next door neighbour was a telecoms engineer and spent quite a lot of time on it, but in the end we decided it wasn't worth while, That was for a GD...
If you have an oscilloscope on the target then the LED flashing frequency has a spike once every so many flashes - as I recall it was around one every...
The intention is to emphasise the "visual" - with the eye rather than with a set of binoculars. The pilot is supposed to be aware of the surroundings ...