Jeff's Handiwork  
First: trying a new antenna. Cut off the end of the board and added something non-metallic, then mounted the coil. Second, trying a new sensor, a piezo accelerometer with an op-amp. We kept the accelerometer, did soemthing else for the antenna.

First: trying a new antenna. Cut off the end of the board and added something non-metallic, then mounted the coil. Second, trying a new sensor, a piezo accelerometer with an op-amp. We kept the accelerometer, did soemthing else for the antenna.


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