
Much has happened since my last GCI commentary. New Compassion Operatives are joining the GCI community from around the world and has surpassed 17,000. In the research aspect of GCI, we have been testing a new sensor design since June 2009. Some of the members have noticed the brighter colors in our spectrogram data, which are due to the higher sensitivity of the sensor. The new sensor utilizes magnetic antennas and an induction coil with a low noise amplifier. The advantage of this new sensor is the compact design. Also ultra low frequencies, called geomagnetic pulsations, from 1 to 1,000 hertz can now be detected by the sensor.
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