Recent RS-918SSB - RX calibration approach

3. Wait until the SAM demodulator has captured the carrier and the carrier
frequency is displayed in the small frequency display and the small frequency
display is stable
4. Go into Configuration menu to "Frequency Calib." Adjust the PPM value until the
small frequency display shows exactly xxxxxx.000 Hz
5. Save configuration by long press on "MENU" or "EXIT" button (F1)