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14. Channel Status
A subscript character following the channel number indicates special qualities.
(A) Simplex Channel
The subscript A indicates that the currently-selected US or Canadian channel is
simplex, although its International counterpart is semi-duplex (5A, for example).
This channel uses the transmit frequency of the International channel for both
transmitting and receiving. If a channel is simplex in all 3 channel sets (US,
Canadian, and International—channel 6, for example), the A does not appear.
Simplex means that the radio transmits and receives on the same frequency for this
Note:
channel. Semi-duplex channels use separate frequencies to transmit and receive.
(B) Receive-only Channel
The subscript B indicates that you cannot transmit on the currently-selected
channel; it is receive-only. Used with Canadian channels only.
15. Soft Key Labels
Displays the current function of the associated soft key.
16. Channel Name
Displays the current channel name. This field is editable.
17. Channel Number
Displays the current active channel number.
18. Channel Set
Indicates which channel set is selected: USA, INT (International), CAN
(Canadian), or WX (Weather).
Special licensing is required to receive the US and Canadian channel sets.
Note:
19. Signal Strength
Indicates that the relative strength of the radio signal being received. Displays
between 0 (no signal) and 5 (strongest signal) bars.
Display Mode
The Ray218E/Ray55E has an alternative method for displaying the channel
number than the one demonstrated above: 2 UP mode. In 2 UP mode, you are
presented with the currently-active channel on the left and the standby channel
on the right. 2 UP mode is discussed in "Display Mode" on page 47.
Ray218E and Ray55E Marine VHF Radios
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