14
MT-550
Channel Selection
When the transceiver is turned On, the Primary Calling Channel (channel 16) is
selected.
There are three ways to change channels:
•
Rotate the
PU
SH-ENT
E
R
PU
SH
-EN
TE
R
(
SELECT/ENT
) knob, press and hold the
ENT
or
EXIT
keys,
or directly enter the channel number using the numeric keys on the
microphone. The
ENT
and
EXIT
keys will always change channels except
when being used to enter or edit a directory page.
Channel Banks
Your
MT-550
is designed for use with the International VHF marine channel
frequencies plus authorized local channel frequencies. Only authorized dealers can
program other approved country channels, where specifically allowed by
government regulations, by using the 8 pin com connector.
Keypad, Transceiver
A tone is emitted each time a key is pressed. A three beep error tone is emitted
when a key is not allowed. Some functions require a key to be pressed and held.
After the hold period times out, a second tone is emitted as the function is entered.
The basic purpose for each key follows. Detailed usage of keys is described in
operating procedures for the transceivers various functions.
CALL
Initiates DSC operation screens by pressing. Also opens menu to select
optional settings to personalize your transceiver’s operation by pressing
and hold.
PU
SH-ENT
E
R
PU
SH
-EN
TE
R
Used to complete editing or selection of options from menu.
H/L
Use to toggle transmitter power between 25 watts and 1 watt output.
Certain channels are restricted to 1 watt maximum power and will
cause the error beep if the
HI/LO
key is pressed.
16
Selects the Primary Calling Channel 16 or the last channel used. Also,
cancels DSC and Emergency/Distress calls.
SCAN
Can be used alone or with the
MEM
key to select Priority Scan, Memory
Scan or All Scan.
MEM
Stores channels in the scan memory bank, and when used with the
SCAN
key, starts Memory Scan.
END
Cancels DSC calls and Emergency/Distress calls.
