Your experience is very similar to mine. If the line being flown is the wood pole line then a lot of data can be obtained. If the wood pole line is cr...
Yes, we still have a countryside full of poles (and quite a lot in urban areas as well). Nowadays "telegraph" poles would generally be carrying "telep...
The three "problems" with Alpha coding are:1) people "think" they know what the code should be2) different customers give different meanings to the sa...
This type of error is to be expected if you are near tall obstructions, but it's unpredictable. Sometimes the answers are true, other times they can b...
The lack of calibration baselines effects Europe as well.Cliff and others rightly make the point that there are occasions when you MUST be able to sta...
I think that's about right. First return should correlate with the foliage identity (unless it's a flock of large birds - it has happened!) and last s...
I did a number of investigations in connection with HV transmission lines several years ago.We did get reasonable bare earth results, but the LIDAR la...
From Arkansas to EnglandNate,Gantry in UK usage would be a "lightweight" bridge type structure, not usually used for vehicles.It might be for holding ...
I'm assuming that this is a theoretical exercise, but a few more facts are needed to give a complete answer. I've had a number of similar jobs, includ...
A view from this side of the pond.I'd estimate at about 12-14 field crew days. Obviously it depends upon whether the underbrush is full depth or mainl...
Agreed, inside buildings.However, sometimes jobs come up where there is argument regarding the flatness or otherwise of floors. In these cases we woul...
I would normally use 250mm contours (approx 1') for most topo jobs, but where the hard surfaces are flat and an accurate form needs to be depicted to ...
I've always solved this problem by quoting a "relative rate" - namely I charge 75% of the instructing attorney's charge out fee.Nobody dare argue with...
The first Geodimeter 440 instruments didn't have an internal memory and relied on a HP41 hidden away in an external box and labelled Geodat 126. These...
I also have one working daily - one which has off days when it will not switch on and a pair in the office which need stripping down to clean whatever...
We have a 640 and a 5605. The 5600 series development probably has better search control and speed, but generally the 640 seems to have a better range...
It is worth making up a short bar from a length of 1/4" thick aluminium - drilled with two 5/8" holes about 18" apart.Mount base station GPS on a trip...
We find that the local detail work is generally best done with a total station (tree cover, etc) so we use a combination of GPS to set a baseline, at ...
The internal batteries should put up a warning message that they need replacing. This is set when the instrument goes in for a service and is normally...