Table of Contents
Advertisement
3
BASIC OPERATION
I Receiving and transmitting
CAUTION:
Transmitting without an antenna may dam-
age the transceiver.
q Push
[
] to turn power ON.
[
]
POWER
POWER
w Set the audio and squelch levels.
➥ Rotate
[
] fully counterclockwise in advance.
[
]
SQL
SQL
➥ Rotate
[
[
] to adjust the audio output level.
]
VOL
VOL
➥ Rotate
[
[
] clockwise until the noise disappears.
]
SQL
SQL
e To change the channel group, push
while pushing
[
[
HI/LO
HI/LO
r Rotate
[
[
CHANNEL
CHANNEL
to select the desired channel.
• When receiving a signal, "
from the speaker.
• Further adjustment of
• Use the optional Voice scrambler function for privacy. (p. 10)
t Push
[
] to turn the receive Attenuator function ON
[
LO/DX
]
LO/DX
or OFF, if necessary.
• "
" appears when the receive Attenuator is in use.
y Push
[
[
] to select the output power, if necessary.
]
HI/LO
HI/LO
• "
" or "
" appears when high or low power is selected, re-
spectively.
• Choose low power for short range communications, choose high
power for longer distance communications.
• Some channels are for selecting low power only.
8
[
]
[
CH/WX
CH/WX
]
(
(
] . (p. 7)
]
] or push
[
Y Y
] /
[
Z Z
] on the microphone
]
[
Y Y
]
[
Z Z
]
" appears and audio is emitted
[
] may be necessary.
[
]
VOL
VOL
u Push and hold
crophone).
• "
" appears.
• Channel 70 cannot be used for transmission other than DSC.
Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83
CANNOT be lawfully used by the general public in
U.S.A. waters.
i Release
[
[
PTT
PTT
U/I/C)
DW
U/I/C)
q
y
DSC/ENT
HI/LO
POWER
VOL
w
IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing
the microphone 2 to 4 inches (5 to 10 cm) from your mouth
and speak into
[
[
]
] to transmit, then speak into
PTT
PTT
] to receive.
]
e
u i
iM502
VHF MARINE
DISTRESS
WATERPROOF
SCAN
CH/WX
16
9
POS
TAG
DW
U/I/C
LO/DX
IC
SCR
SQL
r
t
r
∗
(Microphone) at a normal voice level.
∗
(Mi-
∗
(Microphone)
[
] , hold
[
]
PTT
PTT
Advertisement
Table of Contents
