3
2
PANEL DESCRIPTION
!1
KEYPAD
No function*.
Toggles between memory mode and VFO
mode. (p. 5)
• This key may be disabled by your dealer.
No function*.
No function*.
No function*.
!2
SQUELCH SWITCH [SQL]
(p. 9)
Activates the voice squelch function to reject unde-
sired background noise while no signal is being re-
ceived.
• The squelch opens only when the received signal con-
tains no voice or FSK components.
!3
NOISE BLANKER SWITCH [NB]
(p. 9)
Turns the noise blanker function on to remove
pulse-type noise such as engine ignition noise.
• “NB” appears when the function is turned on.
!4
AGC OFF SWITCH [AGC]
(p. 9)
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]
Selects an operating mode temporarily. Available
modes differ with version.
• USB, AM, J2B (AFSK), FSK, R3E and CW modes are
available.
• The temporary mode is cleared and the previous mode
appears when changing a channel.
!6
TRANSMIT FREQUENCY SWITCH [TX FREQ]
(p. 8)
Displays the transmit frequency and opens the
squelch to check and monitor the transmit fre-
quency.
!7
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.
0
9
to
ENT
T ONLY
CH/FREQ
CL
!8
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.
*These keys function in some versions. See the separate
KEYPAD OPERATION
and
CHANNEL LIST
instruction
sheet for operating details.
