3
2
PANEL DESCRIPTION
!1
KEYPAD
➥
Enters the selected channel number (or fre-
quency*) for direct channel selection. (p. 7)
➥
Stores a receive frequency into a user chan-
nel or ITU simplex channel when:
• pushing [CE] (“
s
” appears)
• entering the desired frequency via the keypad
• pushing and holding [RX] (p. 12)
➥
Adjusts the RF gain after pushing [FUNC] to
reduce the receiver sensitivity. (p. 10)
➥
Stores a transmit frequency into a user chan-
nel (except General versions) when:
• pushing [TX] (“
$
” flashes)
• pushing [CE] (“
s
” appears)
• entering the desired frequency via the keypad
• pushing and holding [TX] (p. 12)
➥
Selects the transmitter channel for cross
channel operation (Europe versions only)
when:
• pushing [TX] (“
$
” flashes)
• entering the desired channel number via the key-
pad
➥
Selects the transmit output power after push-
ing [FUNC]. (p. 9)
➥
Toggles the channel number input and fre-
quency input.* (p. 8)
• “
s
”
appears when frequency input* is selected.
• The channel selector and keypad changes the
frequency while “
s
” appears.
➥
Clears the entered digit and retrieves the pre-
vious channel (or frequency*) while entering
numbers. (p. 7)
➥
Enters the name programming condition,
after pushing [FUNC], for changing the chan-
nel name. (p. 12)
➥
Toggles the channel and frequency indica-
tions. (p. 6)
➥
Enters “–” for ITU simplex channels. (p. 7)
➥
Enter channel number with up to 4 or 5 digits
when “
s
” does not appear. (p. 7)
➥
Enter the frequency with up to 6 digits* when
“” appears. (p. 8)
!2
SQUELCH SWITCH [SQL]
(p. 10)
➥
Activates the voice squelch function to reject un-
desired background noise while no signal is
being received.
• The squelch opens only when the received signal
contains no voice or FSK components.
➥
Starts and stops the scan function after pushing
[FUNC]. (p. 7)
!3
NOISE BLANKER SWITCH [NB]
(p. 10)
Turns the noise blanker function on to remove
pulse-type noise such as engine ignition noise.
• “NB” appears when the function is turned on.
0
9
to
–
CH/FREQ
CE
TX
RX
!4
AGC OFF SWITCH [AGC]
(p. 10)
Deactivates the AGC function to receive weak sig-
nals blocked by strong adjacent signals.
• “
ê
” appears when the [AGC] switch is turned on
(stands for AGC deactivated).
!5
MODE SWITCH [MODE]
(p. 9)
Selects an operating mode temporarily. Available
modes differ with version.
• J3E (USB), H3E, J2B (AFSK), FSK, R3E and A1A (CW)
modes are available.
• The temporary mode is cleared and the previous mode
appears when changing a channel.
!6
OVEN INDICATOR
(GMDSS version only)
Internal high-stability crystal oscillator unit contains
a temperature-compensating oven heater. This
high-stability crystal oscillator improves frequency
stability.
• “STANDBY” appears when power to the main unit is
turned off.
!7
TRANSMIT FREQUENCY SWITCH [TX FREQ]
(p. 9)
Displays the transmit frequency and opens the
squelch to check and monitor the transmit fre-
quency.
!8
2182 kHz SELECTION SWITCH
[2182kHz •
RESET
]
(p. iii)
➥
Selects channel 0 (2182 kHz; distress call fre-
quency).
• The channel selector does not function when select-
ing channel 0.
➥
Ignores external control and gives the front panel
control priority when an external controller
(NMEA format) is connected.
!9
ALARM SWITCH [ALARM]
(p. iii)
➥
Emits a distress alarm signal from the speaker.
➥
Transmits a distress alarm or alarm testing signal
when pushed together with the [TX FREQ]
switch.
☞
NOTE:
General versions are not equipped with this
[ALARM] switch.
*Some versions do not have frequency selection and fre-
quency indication.
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