Had a long drive so needed to leave early, still didn't get out of the office till 5:30.
An hour in and almost drove into these two:
At the job site:
Hiked up one of the canyon walls to tie in a Section corner:?ÿ
4 plain notches as described.?ÿ
Hey,?ÿ that's my section corner that we shot on Wednesday.
We had another on Wednesday that was very frustrating.?ÿ I had used it twice in 2000.?ÿ It was a 5/8" iron bar in the middle of a county road with four references set by another good surveyor.?ÿ Swept the area with the metal detector.?ÿ Nothing.?ÿ Got out the newer/better detector and had the same results.?ÿ Pulled the ties with three of four hitting the same spot.?ÿ Put detector on the spot.?ÿ No signal and no null.?ÿ Tore into the road bed anyway.?ÿ Down two inches we found our bar.?ÿ Tried both detectors again.?ÿ Nothing.
@mightymoe I can't even imagine working in landscapes like that. I would love it! I need to come out there and have a long "workcation".
The magnetic properties were beaten out of the rebar. That is a sad, sad occurrence. About all you can do then is bury a little magnet alongside.
I hope you added a magnet or tried to magnetize the bar before filling the hole.
One corner of the church property is under a huge power line. A schoenstedt has a warble in that area. You are lucky if you hear any change until you get within inches of the rebar that is only 3 inches down. I figure years of the AC field has erased any permanent magnetism like an eraser for recording tape. But I still don't know why the bar doesn''t pull enough of the earth field to be readily detected.
Normally if we don't get a signal we get the null response where you have some noise everywhere except "right here". Took a while to learn that little trick. Getting neither a signal nor a null response had happened very few times for me.
