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Icom IC-M502 User manual

INSTRUCTION MANUAL
iM502
VHF MARINE TRANSCEIVER
This device complies with Part 15 of the FCC rules. Operation is sub-
ject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
! IC-M502_4.qxd 02.3.23 9:31 AM Page a (1,1)
If your vessel requires assistance, contact other vessels and
the Coast Guard by sending a distress call on channel 16.
Or, transmit your distress call using digital selective calling on
channel 70.
USING DIGITAL SELECTIVE CALLING (Ch 70)
DISTRESS CALL PROCEDURE
1. While lifting up the switch cover, push and
hold [DISTRESS] for 5 sec. until you hear 5
short beeps change to one long beep.
2. Wait for an acknowledgment from a coast
station.
• Channel 16 is automatically selected.
3. Push and hold [PTT], then transmit the
appropriate information as at left.
USING CHANNEL 16
DISTRESS CALL PROCEDURE
1. “MAYDAY MAYDAY MAYDAY.”
2. “THIS IS ...............” (name of vessel)
3. Your call sign or other indication of the vessel
(AND 9-digit DSC ID if you have one).
4. “LOCATED AT ...............” (your position)
5. The kind of the distress and assistance
required.
6. Any other information which might facilitate
the rescue.
IN CASE OF EMERGENCY
i
READ ALL INSTRUCTIONS carefully and completely
before using the transceiver.
SAVE THIS INSTRUCTION MANUAL —This in-
struction manual contains important operating instructions for
the IC-M502.
IMPORTANT
! IC-M502_4.qxd 02.3.23 9:31 AM Page b (1,1)
IMPORTANT .............................................. i
IN CASE OF EMERGENCY ...................... i
TABLE OF CONTENTS ............................ ii
CAUTIONS ............................................... iii
1 OPERATING RULES .................. 1
2 PANEL DESCRIPTION .......... 2 – 5
■Panel description ............................ 2
■Function display .............................. 4
■Microphone ..................................... 5
3 BASIC OPERATION ............ 6 – 10
■Channel selection ........................... 6
■Microphone lock function ................ 7
■Receiving and transmitting ............. 8
■Call channel programming .............. 9
■Channel names .............................. 9
■Optional voice scrambler
operation ....................................... 10
4 DUALWATCH/TRI-WATCH ....... 11
■Description .................................... 11
■Operation ...................................... 11
5 SCAN OPERATIONS ......... 12 – 13
■Scan types .................................... 12
■Setting tag channels ..................... 13
■Starting a scan .............................. 13
6 DSC OPERATION .............. 14 – 28
■MMSI code programming ............. 14
■Position and time programming .... 14
■Position indication ......................... 15
■Distress call .................................. 16
■Transmitting DSC calls ................. 17
■Setting the distress information .... 21
■DSC individual ID ......................... 22
■Receiving DSC calls ..................... 23
■DSC set mode .............................. 26
■Receive messages ....................... 28
7 INTERCOM OPERATION ......... 29
■Intercom operation ........................ 29
8 SET MODE ........................ 30 – 33
■Set mode programming ................ 30
■Set mode items ............................. 31
9 CONNECTIONS AND
MAINTENANCE ................. 34 – 39
■Supplied accessories .................... 34
■Antenna ........................................ 34
■Fuse replacement ......................... 34
■Cleaning ....................................... 34
■Connections .................................. 35
■Mounting the transceiver .............. 36
■Optional unit installation ............... 38
■Dimensions.................................... 39
10 TROUBLESHOOTING .............. 40
11 CHANNEL LIST ........................ 41
12 SPECIFICATIONS AND
OPTIONS ........................... 42 – 43
■Specifications ............................... 42
■Options ......................................... 43
13 HM-127 REMOTE-CONTROL
MICROPHONE ................... 44 – 56
■Panel description .......................... 44
■Function display ............................ 46
■HM-127 supplied accessories ...... 47
■Installation .................................... 48
■Channel selection ......................... 50
■Receiving and transmitting ........... 51
■RF attenuator function .................. 51
■Lock functions ............................... 52
■Display backlighting ...................... 52
■Monitor function ............................ 52
■Call channel programming ............ 53
■Optional voice scrambler
operation ....................................... 53
■Starting a scan .............................. 54
■Setting tag channels ..................... 54
■Dualwatch/Tri-watch operation ..... 54
■Set mode programming ................ 55
■Intercom operation ........................ 56
■Channel names ............................ 56
TEMPLATE
ii
TABLE OF CONTENTS
! IC-M502_4.qxd 02.3.23 9:31 AM Page c (1,1)
iii
RWARNING! NEVER connect the transceiver to an AC
outlet. This may pose a fire hazard or result in an electric
shock.
CAUTION: Changes or modifications to this device, not ex-
pressly approved by Icom Inc., could void your authority to
operate this device under FCC regulations.
NEVER connect the transceiver to a power source of more
than 16 V DC or use reverse polarity. This will ruin the trans-
ceiver.
NEVER cut the DC power cable between the DC plug and
fuse holder. If an incorrect connection is made after cutting,
the transceiver may be damaged.
NEVER place the transceiver where normal operation of the
vehicle may be hindered or where it could cause bodily injury.
KEEP the transceiver at least 3.3 ft (1 m) away from the
ship’s navigation compass.
DO NOT use or place the transceiver in areas with temper-
atures below –4°F (–20°C) or above +140°F (+60°C) or, in
areas subject to direct sunlight, such as the dashboard.
AVOID the use of chemical agents such as benzine or al-
cohol when cleaning, as they may damage the transceiver
surfaces.
BE CAREFUL! The transceiver rear panel will become
hot when operating continuously for long periods.
Place the transceiver in a secure place to avoid inadvertent
use by children.
BE CAREFUL! The transceiver and optional HM-127 em-
ploy waterproof construction, which corresponds to JIS wa-
terproof specification, grade 7 (1 m/30 min.). However, once
the transceiver or microphone has been dropped, water-
proofing cannot be guaranteed due to the fact that the case
may be cracked, or the waterproof seal damaged, etc.
CAUTIONS
CLEAN THE TRANSCEIVER AND MICROPHONE
THOROUGHLY WITH FRESH WATER after exposure to
water including fresh water, otherwise, the keys and
! IC-M502_4.qxd 02.3.23 9:32 AM Page d (1,1)
1
1
OPERATING RULES
PRIORITIES
•Read all rules and regulations pertaining to priorities and
keep an up-to-date copy handy. Safety and distress calls
take priority over all others.
• You must monitor channel 16 when you are not operating on
another channel.
•False or fraudulent distress signals are prohibited and pun-
ishable by law.
PRIVACY
•Information overheard but not intended for you cannot law-
fully be used in any way.
• Indecent or profane language is prohibited.
RADIO LICENSES
(1) SHIP STATION LICENSE
You must have a current radio station license before using the
transceiver. It is unlawful to operate a ship station which is not
licensed.
Inquire through your dealer or the appropriate government
agency for a Ship-Radiotelephone license application. This
government-issued license states the call sign which is your
craft’s identification for radio purposes.
(2) OPERATOR’S LICENSE
A Restricted Radiotelephone Operator Permit is the license
most often held by small vessel radio operators when a radio
is not required for safety purposes.
The Restricted Radiotelephone Operator Permit must be
posted or kept with the operator. Only a licensed radio opera-
tor may operate a transceiver.
However, non-licensed individuals may talk over a transceiver
if a licensed operator starts, supervises, ends the call and
makes the necessary log entries.
Keep a copy of the current government rules and regulations
handy.
Radio license for boaters (U.S.A. only)
The Telecommunications Act of 1996 permits recreational
boaters to have and use a VHF marine radio, EPIRB, and
marine radar without having an FCC ship station license.
Boaters traveling on international voyages, having an HF
single sideband radiotelephone or marine satellite terminal,
or required to carry a marine radio under any other regula-
tion must still carry an FCC ship station license. For further
information, see the FCC Ship Radio Stations Fact Sheet.
! IC-M502_4.qxd 02.3.23 9:32 AM Page 1 (1,1)
PANEL DESCRIPTION
2
2
■Panel description
qPOWER SWITCH [POWER]
Push to toggle the transceiver power ON and OFF.
wVOLUME CONTROL [VOL]
Adjusts the audio level. (p. 8)
eSQUELCH CONTROL [SQL]
Sets the squelch threshold level. (p. 8)
rTRANSMIT POWER SWITCH [HI/LO]
➥Toggles high and low power when pushed. (p. 8)
• Some channels are set to low power only.
➥While pushing this switch, other switches perform sec-
ondary functions.
tCHANNEL SELECTOR [CHANNEL]
➥Rotate [CHANNEL] to select the operating channels, set
mode contents, etc. (p. 8)
! IC-M502_4.qxd 02.3.23 9:32 AM Page 2 (1,1)
➥While pushing [HI/LO], rotate [CHANNEL] to adjust the
brightness of the LCD and switch backlight.
yATTENUATOR/INTERCOM/SCRAMBLER SWITCH
[LO/DX•IC•SCR]
➥Toggles the attenuator function ON and OFF when
pushed momentarily. (p. 8)
•“LOCAL” appears when the attenuator is in use. The order of
indication precedence is “LOCAL,” “SP OFF” and “CALL.”
➥Activates an optional intercom function when pushed for
1 sec. (p. 29)
➥Calls optional HM-127 REMOTE-CONTROL MICROPHONE
when pushed and held while in intercom mode. (p. 29)
➥While pushing [HI/LO], activates an optional voice
scrambler function. (p. 10)
•The optional voice scrambler function cannot be used on
channel 16 and 70.
uCHANNEL 16/CALL CHANNEL SWITCH [16•9]
➥Selects channel 16 when pushed. (p. 6)
➥Selects call channel when pushed for 1 sec. (p. 6)
•“CALL” appears when call channel is selected. “LOCAL” and
“SP OFF” indications have priority.
➥Push for 3 sec. to enter call channel programming con-
dition when call channel is selected. (p. 9)
➥While pushing [HI/LO], enters memory name program-
ming condition. (p. 9)
➥Enters set mode when pushed while turning power ON.
(p. 30)
iDISTRESS SWITCH [DISTRESS]
Transmits distress call when pushed for 5 sec. (p. 16)
oCHANNEL/DUALWATCH/TRI-WATCH SWITCH
[CH/WX•DW•U/I/C]
➥Selects and toggles the regular channels and weather
channel when pushed momentarily. (pgs. 6, 7)
➥While pushing [HI/LO], selects one of 3 regular channels
in sequence when pushed. (pgs. 6, 7)
•International, U.S.A. and Canadian channels are available for
regular channels.
➥Starts dualwatch or tri-watch when pushed for 1 sec.
(p. 11)
➥Stops dualwatch or tri-watch when either is activated.
!0 SCAN SWITCH [SCAN•TAG] (p. 13)
➥Starts and stops normal or priority scan when tag chan-
nels are programmed.
➥Push [SCAN•TAG] for 1 sec. to set the displayed chan-
nel as a tag (scanned) channel.
➥While pushing [HI/LO], push for 3 sec. to clear all tag
channels.
!1 DSC/POSITION SWITCH [DSC/ENT•POS]
➥Selects the DSC menu when pushed. (p. 14)
➥Shows current position and time from an optional GPS
receiver, etc. when pushed for 1 sec. (p. 15)
PANEL DESCRIPTION
3
2
! IC-M502_4.qxd 02.3.23 9:32 AM Page 3 (1,1)
Count on us!
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan
A-5663H-1EX-r
Printed in Japan
© 2000 Icom Inc.
! IC-M502_4.qxd 02.3.23 9:32 AM Page Z (1,1)

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