Yes.?ÿ They work on the principle of a magnetometer.?ÿ The Schoenstedt has two sensors spaced 15 or 18 inches apart in the pipe and it reads the diffe...

Most metal detectors that are not magnetic locators respond to the product of the metal's conductivity and the surface area presented to the detector ...

In processing the sessions I did yesterday I find that things are a little different since December.?ÿ Topcon Tools won't process my .dat files like i...

My conclusion is that I found no significant difference with various things under the Trimble 33429.00 "microcentered" antenna. Measured height of th...

I figured a potential buyer would want to know what they were getting.?ÿ

Poster's profile says in Turkey.?ÿ Any US buyer would want to know shipping cost and more about the instrument, such as degrees or gons scale. Inverte...

I went out in the driveway this afternoon, at about the time I was out the previous day, and that receiver got 6 sats, including PRN 19 at good SNR. ...

So Trimble labeled them wrong??ÿ It lists them as SV numbers-very confusing. Ambiguities make some sense, but doesn't it keep trying to lock on to a ...

No pictures.

I don't understand the focus only on screen size.?ÿ What about pixels?

Iƒ??m planning an experiment to see if things under my GPS antenna affect the measurement of height. Iƒ??ll use an antenna mounted 1) close to a metal...

At what distance? Is it a repeatable bias or random error,?

You want to end up with height above ground??ÿ I don't see you say you have measured up from the ground to the mark. And at first reading your adds an...

Do you mean for a TM projection or Lambert grid convergence angle, or true geodetic convergence of meridians? The grid angle changes with east-west d...