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Tag: ‘GEM systems’

Magnetometer batteries

Scintrex and Geometrics magnetometers require heavy sealed lead acid magnetometer batteries greater than 7.2Ah in size. In contrast GEM Systems uses lightweight lithium Ion batteries and SLA batteries only 2.2Ah in size. While the SLA batteries are conveniently built in to the console, they do however need to be protected against a short circuit against […]

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Overhauser Magnetometer sale

For a limited time you can save thousands off the new price of a GEM Systems GSM-19 overhauser base station or rover magnetometer. Fast sampling rover (GSM-19W overhauser) magnetometers are currently CAD$11,850 and base station GSM-19 overhausers are currently priced at CAD$9,000. Overhauser magnetometers have a sensitivity of 0.02 nT and are ideal for base […]

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Are Overhauser magnetometers right for you?

GSM-19 Overhauser magnetometers are the choice of the ground magnetic survey industry. They are the lightest and simplest to use of any magnetometer on the market. With in-built navigation there is no need to carry a handheld GPS. Handheld GPS units can reduce the data quality because they are magnetic. They also add additional and […]

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Don’t do a ground magnetic survey without GPS navigation built into the magnetometer.

Most magnetometers can tell you where they have been, but only a few can tell you where to go. For efficiency, ground magnetic surveys are usually conducted along parallel survey lines – or grids. In the bad old days prior to GPS, these grids would have to be laid out at great expense prior to […]

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GEM Systems magnetometer navigation firmware now works. Many improvements coming soon!

Modern Mag in conjunction with GEM systems magnetometers is trialing new firmware for the GEM-19 and GSMP-35 series of magnetometers. For many years there has been a fatal flaw in the real time magnetometer navigation function. A programming error caused the lane guidance and distance to end of the line functions to fail, particularly for very long […]

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Base station magnetometers for ground mag surveys.

While any kind of magnetometer can be used as a base station magnetometer to record temporal variations in the geomagnetic field, some are more accurate and convenient than others. It is convenient to use a base station from the same manufacturer since the software that comes free with those magnetometers can diurnally correct that data. […]

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