John Hamilton, post: 419826, member: 640 wrote: I should add that SLAC has done a lot of research on digital levels, and have published a number of pa...

FrancisH, post: 419799, member: 10211 wrote: Again never used invar rods in my life. Weight alone based on specs is 2x or 3x heavier than fiberglass s...

FGCS specs for both First and Second Order leveling require invar rods. They can - and generally are, these days - barcode rods, but they have to be ...

John Putnam, post: 419760, member: 1188 wrote: Jim, I would be more suspect of the bench over the CORS.There's no question that the BM has subsided, t...

It must feel strange to be working in the RR ROW without looking over your shoulder every 2 minutes to see if the RR police are on their way to kick y...

Luke J. Crawford, post: 419523, member: 11382 wrote: An issue I do have is the L/R if picked before distance is entered will switch back to R.That's n...

FrancisH, post: 419576, member: 10211 wrote: In 4 hours you could run a 5 km loop and your results would be within 1st/2nd order if you will be using ...

Adam, post: 419549, member: 8900 wrote: Beast mode can be used with a network.I think this is worthy of emphasis: you *can* (and I do) use 5Hz correc...

The large inelastic drop for P271 in mid-2014 was at least partially the result of an intensive pumping effort associated with a groundwater substitut...

MightyMoe, post: 419454, member: 700 wrote: I realize this isn't so in other areas of the countryLast week I did a 4-hour session on a First Order Cla...

PLSB and P271 (a few miles away) are stations that I never constrain for vertical. Both are in a subsiding area, and sometimes it's a pretty wild rid...

I haven't seen either of those problems, knock wood. What version, and what platform?

FrancisH, post: 419396, member: 10211 wrote: only difference between RTK and static sessions is the RT in RTKThe difference is in using local BMs inst...

On a related matter -- in effect, though probably not in cause -- I've noticed that, under certain conditions that I've not been able to intentionally...

FrancisH, post: 419219, member: 10211 wrote: So if your project needs accuracy to be in the 1st order level (4mm closure/km) then your rtk results won...

The first Schonstedt video above contains a pretty glaring goof: the guy cautions that stainless steel will be harder to detect because it has "littl...