Is it possible to use a 5500 ohm L4C sensor with a RS1D raspberryshake???
Kind regards Daniel
No, this is not possible. It must be a 380 Ohm 4.5 Hz geophone.
Is the Raspberry Jam universal 24-bit digitizer still made??
The RJAM was discontinued some years ago
Maybe consider replacing the whole L4C setup with a RS1D. The RS1D should give better results.