ETC Cobalt Family v7.0.0 - Manual (Page 172)

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System Settings - USB RFR
You can set HF (frequency) and Network ID (group) for a USB-connected RFR base station. Note:
RFR base stations connected via Ethernet can be configured using Gateway Configuration Editor
(GCE), see
System Settings - Utilities .
For more information see
Remote Control - RFR Radio Remote .
For the remote to work both base station and console need to be set to the same HF and Network ID.