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2
PANEL DESCRIPTION
I Front panel
Function
Speaker
display
POWER
VOL
q
w
2
!1
!0
o
i
iM502
VHF MARINE
DISTRESS
WATERPROOF
DSC/ENT
SCAN
CH/WX
16
9
POS
TAG
DW
U/I/C
LO/DX
HI/LO
IC
SCR
SQL
e
r
t
y
q VOLUME CONTROL
Adjusts the audio level.
w POWER KEY
Push to turn the transceiver power ON or OFF.
e SQUELCH CONTROL
Sets the squelch threshold level.
r TRANSMIT POWER KEY
➥ Toggles power high or low when pushed. (p. 8)
• Some channels are set to low power only.
➥ While pushing this key, some keys perform secondary
functions.
t CHANNEL SELECTOR
➥ Rotate
[
[
CHANNEL
CHANNEL
Set mode settings, etc. (pgs. 8, 38)
➥ While pushing
u
the brightness of the LCD and key backlight. (p. 37)
[
] (p. 8)
[
]
VOL
VOL
[
]
[
]
POWER
POWER
[
] (p. 8)
[
]
SQL
SQL
[
]
[
]
HI/LO
HI/LO
[
]
[
]
CHANNEL
CHANNEL
] to select the operating channels,
]
[
] , rotate
[
[
]
[
HI/LO
CHANNEL
HI/LO
CHANNEL
] to adjust
]
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