Applies to:
RX-C4 receiver, DWR-MkIII, DWR-G, WR-SG, DWR4
Explanation:
Each Datawell buoy transmits on a specific HF frequency that must match the RX-C4 configuration exactly. Small frequency mismatches can cause partial decoding, increased FER, or complete loss of data. Frequencies can be adjusted via the RX-C4 front panel or through the integrated web interface when using Ethernet. Before making any change, confirm the buoy’s assigned transmit frequency from deployment records. After changing frequency, allow the receiver several minutes to stabilise and monitor signal quality indicators rather than expecting immediate clean data. In multi-buoy installations, frequency planning is essential to avoid overlap or intermodulation effects. Unrecorded frequency changes are a frequent cause of unexpected data loss during maintenance or receiver replacement. Additional notes Maintain a central frequency register linked to buoy serial numbers and deployment locations.