cal_data.set_accel_plus_minus(accel_plus_g, accel_minus_g);
listener.set_acceleration(cal_data.acceleration(accel));
if (kalman_height != AltosLib.MISSING)
cal_data.set_accel_plus_minus(accel_plus_g, accel_minus_g);
listener.set_acceleration(cal_data.acceleration(accel));
if (kalman_height != AltosLib.MISSING)