Furuno FA-30 Operator's Manual page 19

5. Click the RX Mode drop-down list to choose which channel(s) to receive.
RX 1+2
RX 1+2
RX 1
RX 2
RX 1+2: Receive via channels 1 and 2.
RX 1: Receive via channel 1.
RX 2: Receive via channel 2.
6. Click the Channel Selection drop-down list.
7. Choose Manual.
8. Click the OK button to finish. The Own Vessel Data menu appears.
To return to automatic channel selection, open the Channel menu, choose Auto at
Channel Selection and click the OK button. CH2087 and CH2088 are automatically
selected.
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