Nice. Is that over the Ohio river? Where may I ask?

I still use my TDS Survey Link program to upload mine from time to time, so it should work. Are all your settings correct? Fresh batteries?

Heck, my HP 48 with TDS Pro will operate our DL 102. It works pretty good. I kind of prefer to use it rather than our 2500 with TopSURV 8.

Speaking about batteries from China, I agree. You can get the Topcon BT-65Q battery for $75 and they work fine, but make sure you order them in advan...

> From what I've seen, underdrains are porous pipes that run along the side of roads, and are designed to keep the water table a few feet below the...

Hmmm...he sounds just like a few Engineers that I know. All you need is one control point to start, right? OK. You can have two, but why the hey wo...

An exacto knife and some careful scraping works sometimes.

I've seen some of these younger guys doing 1 man layout with robots these days. Carrying around the prism rod with data collector attached to it, a b...