Furuno FM-2710 Operator's Manual page 23

3-1-2. Indications
1) "USA" : Appears when the USA mode is selected with the [INT] key.
2) "INT" : Appears when International mode is selected with the [INT] key.
3) "DW" : Appears when Dual Watch mode is activated with the [DW] key.
4) "WX" : Appears when the Weather channel mode is activated with the [WX] key.
9 5
8
TX BUSY
6
LOW
DW
3
ALT
USA
1
WX
INT
2
4 7
Fig. 3-2 Indications
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10