Regarding the borehole instuments. I can't help speculating on the following: Although they were designed for a borehole, they almost certainly were individual seismometers, stacked one above the other, mounted inside a larger case. It should be possible to separate them and ship as individuals once the borehole case is removed. The idea of temporarily hauling them to a storage locker and disassembling them might be a viable option. At worst it might involve hack-sawing a mounting frame apart (I'd personally use a angle grinder if it came to that.) Once they're apart the seismo masses could be blocked for shipment thereby protecting them. And once they're in that size unit, they could be shipped UPS, cheaply and quickly. The electronics inside may have gotten moist or wet, that would account for the "noisy" performance. One calibration/control box unit is essential to back engineering the required voltages and expected levels to make homebrew electronics. In particular I expect that it had remote control leveling motors to set it up once it was in the borehole. If Raul can do an initial look-see, maybe take some photos to discuss possible separation methods, I'd be willing to fly down and help cart them to a storage locker and take them apart with the aforementioned process. (Raul, if you schedule it later in the week, maybe I can fly down for the look-see also.) I can bring the angle grinder! Two people, a rental truck and a cherry picker/engine lift could handle the instruments. 3 or more could probably just pick them up by hand. I'd estimate a day to move them and maybe 3 days work to break down 40 instruments. After that shipping would be extra. A small storage locker would be about $50 for a month but probably wouldn't allow working on them there. A better option would be to find an aviation homebuilder at a local airport who would let us use some space for a couple of days. If you think this makes sense, I might be able to pursue that option. Anyway, that might keep the shipping and overhead costs low. What do you think? Charles R. Patton __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>