Geophex Gem-2 Broadband EMI

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Quark Scan Inc.
dpexp70
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Geophex Gem-2 Broadband EMI

Post by dpexp70 »

Asking $12,000, half price from new. Unit comes with all the accessories including recently purchased external battery charger and extra battery for long survey jobs. Battery charger is capable of charging 2 batteries at a time. Must sell, or else I would not! Also comes with IBM Think Pad with all the necessary software to collect and post process the data, including surfer.
Quark Scan Inc. - underground utility locating and geophysical survey services in NJ NY and PA
multidime_872
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Re: Geophex Gem-2 Broadband EMI

Post by multidime_872 »

Hi this looks good. Have you compared the data and results obtained with the Gem2 and with EM31 on the same site for near surface targets (<5m).
Currently using the EM31 for GC surveys but looking to add a different equipment to the arsenal.
mkageophysic
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Re: Geophex Gem-2 Broadband EMI

Post by mkageophysic »

Hello, I am interested in Gem2. Can you send me a photo of its current condition and how old it is?
99thpercentile
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Re: Geophex Gem-2 Broadband EMI

Post by 99thpercentile »

If you want to see comparisons of a lot of different instruments at multiple test sites, here is a link to a project I worked on a number of years ago.

Geophysics for Military Construction Projects
https://apps.dtic.mil/sti/citations/ADA531964
https://apps.dtic.mil/sti/pdfs/ADA531964.pdf

We used Geophex GEM-2, GSSI Profiler EMP-4000, Geonics EM38B, Geonics EM31, Geonics EM61-MK2 and lots of others
Ryan E. North, PhD, RPG, GISP
Principal Geophysicist
ISC Geoscience
ryan.e.north@iscgeoscience.com
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