4. And possibly best -- Jim Frame pointed out in a previous post that Trimble has a tool that worked.?ÿ I tried it and I think it does the essential j...

Three options can be found by searching this forum. 1. Fixweek has been written by a forum member to correct the .dat file. Be sure it is intended to...

The data sheet horizontal coordinates are HD_HELD2, i.e. handheld quality, and might be from my Garmin some years back, although I'm not sure of that.

First one used ?ÿ?ÿ IAMN ?ÿ?ÿ IAMQ?ÿ NLIB?ÿ?ÿ el ht pk-pk 0.244(m) Second one used IAMN?ÿ?ÿ IAWN?ÿ NLIB?ÿ?ÿ 0.378(m) Your modified 2nd file used IAT...

It's partly affected by epoch, but mostly by where the datum is centered.?ÿ NAD83(xxxx) has stuck with the original definition, but ITRF uses an updat...

Pk-pk el ht is still 2.5 times acceptable 8 cm for sharing, which is pretty bad, and I thought I remembered GPSonBM recommended better than that. The ...

Paul in PA said it was being slow.?ÿ I submitted one that I now know will fail, but have not received a result after a couple hours. Edit:?ÿ Email ju...

I sat down and compared the planning tool with the sats observed.?ÿ Sats 3 and 22 were rather low elevation angle so not surprised I didn't get them.?...

I had warmed up the receiver at home so it had a current almanac, and was lucky on the time to get so many sats. I don't understand why L2 would lag L...

Do you use any precautions against settling by pressure on the frozen layer?

I keep thinking @Jed is going to find D.B. Cooper's bones (with broken leg) in those hills. Edit: of course the money will have all rotted away by no...

Recreational GPS units typically do a decent approximation to the great circle route. But in your method any place within blocks will give you near...

Modern instruments get you distance and angle. Decades-old discussions of resection may be considering only angles, as that was often covered in books...

"If the custom began when the world was thought to be flat, then treat it like drawing a line on a flat map." Ah, but which map projection? And suffi...