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36

CHANNEL LIST

10

NOTE: 

Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 

CANNOT

be lawfully used by the general public in U.S.A. waters.

*

Low power only.

*

Momentary high power.

*

DSC operation only.

Channel number Frequency (MHz)

03

156.150 160.750

03

03A

156.150 156.150

156.200 160.800

04

02

156.100 160.700

02

04A

156.200 156.200

156.250 160.850

05

05A

05A

156.250 156.250

06

06

156.300 156.300

06

156.350 160.950

07

07A

07A

156.350 156.350

08

08

156.400 156.400

08

09

09

156.450 156.450

09

10

10

156.500 156.500

10

11

11

156.550 156.550

11

12

12

156.600 156.600

12

13*

2

13*

1

156.650 156.650

13

14

14

156.700 156.700

14

15*

2

15*

1

156.750 156.750

15*

1

16

16

156.800 156.800

16

17*

1

17*

1

156.850 156.850

17

156.900 161.500

18

18A

18A

156.900 156.900

156.950 161.550

19

19A

19A

156.950 156.950

20

20*

1

157.000 161.600

20

20A

157.000 157.000

01A

156.050 156.050

USA

01

156.050 160.650

01

CAN Transmit Receive

INT

Channel number Frequency (MHz)

157.100 161.700

22

22A

22A

157.100 157.100

23

157.150 161.750

23

21b

Rx only 161.650

23A

157.150 157.150

24

24

157.200 161.800

24

25

25

157.250 161.850

25

25b

Rx only 161.850

26

26

157.300 161.900

26

27

27

157.350 161.950

27

28

28

157.400 162.000

28

28b

Rx only 162.000

60

156.025 160.625

60

156.075 160.675

61

61A

61A

156.075 156.075

156.125 160.725

62

62A

156.125 156.125

156.175 160.775

63

63A

156.175 156.175

64

156.225 160.825

64

64A

64A

156.225 156.225

156.275 160.875

65

65A

65A

156.275 156.275

65A

156.325 160.925

66

66A

66A*

1

156.325 156.325

66A

67*

2

67

156.375 156.375

67

21A

21A

157.050 157.050

USA

21

157.050 161.650

21

CAN Transmit Receive

INT

Channel number Frequency (MHz)

71

71

156.575 156.575

71

72

72

156.625 156.625

72

73

73

156.675 156.675

73

70*

3

70*

3

156.525 156.525

70*

3

74

74

156.725 156.725

74

75*

1

75*

1

156.775 156.775

75*

1

76*

1

76*

1

156.825 156.825

76*

1

77*

1

77*

1

156.875 156.875

77

156.925 161.525

78

78A

78A

156.925 156.925

156.975 161.575

79

79A

79A

156.975 156.975

157.025 161.625

80

80A

80A

157.025 157.025

157.075 161.675

81

81A

81A

157.075 157.075

157.125 161.725

82

82A

82A

157.125 157.125

83

157.175 161.775

83

83A

83A

157.175 157.175

83b

Rx only 161.775

84

84

157.225 161.825

84

84A

157.225 157.225

85

85

157.275 161.875

85

85A

157.275 157.275

86

86

157.325 161.925

86

69

69

156.475 156.475

69

68

USA

68

156.425 156.425

68

CAN Transmit Receive

INT

Channel number Frequency (MHz)

88

88

157.425 162.025

88

88A

157.425 157.425

87A

157.375 157.375

87

87

157.375 161.975

87

86A

USA

157.325 157.325

CAN Transmit Receive

INT

Frequency (MHz)

RX only

162.425

RX only

162.450

RX only

162.500

RX only

162.475

RX only

162.525

RX only

161.650

RX only

161.775

RX only

163.275

RX only

162.400

RX only

162.550

Transmit

Receive

WX channel

4

5

6

3

7

8

9

10

2

1

Summary of Contents for iM304

Page 1: ...INSTRUCTION MANUAL iM304 VHF MARINE TRANSCEIVER...

Page 2: ...ly and completely before using the transceiver SAVE THIS INSTRUCTION MANUAL This in struction manual contains important operating instructions for the IC M304 EXPLICIT DEFINITIONS WORD DEFINITION R WA...

Page 3: ...ying the sticker p 32 EXAMPLE WARNING STICKER USING DIGITAL SELECTIVE CALLING Ch 70 DISTRESS CALL PROCEDURE 1 While opening the key cover push and hold DISTRESS for 5 sec until you hear 5 short beeps...

Page 4: ...with radio and antenna when persons are within the MPE radius of the antenna unless such persons such as driver or radio operator are shielded from antenna field by a grounded metallic barrier The MPE...

Page 5: ...Setting TAG channels 11 Starting a scan 11 5 DUALWATCH TRI WATCH 12 Description 12 Operation 12 6 DSC OPERATION 13 27 MMSI code programming 13 MMSI code check 13 DSC address ID 14 Position indication...

Page 6: ...njury 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 su...

Page 7: ...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 Res...

Page 8: ...ch threshold level r CHANNEL 16 CALL CHANNEL KEY 6 9 Push to select Channel 16 p 5 Push and hold for 1 sec to select call channel p 5 CALL appears when the call channel is selected Push and hold for 3...

Page 9: ...DSC POSITION KEY DSC POS Push to enter DSC menu p 13 Push and hold for 1 sec to show the current position from a GPS receiver p 15 Microphone q PTT SWITCH PTT Push and hold to transmit release to rec...

Page 10: ...nel is selected WX ALT appears when the Weather alert function is in use blinks when an alert tone is received i DSC INDICATORS DSC appears when a DSC call is received p 24 POS REPLY appears when a Po...

Page 11: ...vorite channels in the selected channel group in sequence when pushed The favorite channels are set by the TAG channel setting p 11 Channel 9 Call channel Each regular channel group has a separate lei...

Page 12: ...Push Y or Z to select a channel appears for duplex channels Weather channels The IC M304 has 10 pre programmed weather channels These are used for monitoring broadcasts from NOAA Na tional Oceanic an...

Page 13: ...essary LOW appears when low power is selected Choose low power for short range communications choose high power for longer distance communications Some channels are for low power only y Push and hold...

Page 14: ...l as the call channel Push CH WX to cancel The channel number stops blinking Channel comments Memory channels can be labeled with a unique alphanumeric ID of up to 10 characters each More than 6 chara...

Page 15: ...tness of the LCD and key backlight The backlight is selectable in 3 levels and OFF AquaQuake water draining function The IC M304 uses a new technology to clear water away from the speaker grill AquaQu...

Page 16: ...e Refer to the right page for details Choose Priority or Normal scan in Set mode p 29 PRIORITY SCAN Priority scan searches through all TAG channels in se quence while monitoring Channel 16 When a sign...

Page 17: ...e selected channel group Repeat above procedure to set all TAG channels Starting a scan Set scan type Priority or Normal scan and scan resume timer in advance using Set mode p 29 q Push U I C both Y a...

Page 18: ...h A beep tone sounds when a signal is received on Channel 16 r To cancel Dualwatch or Tri watch push DUAL CH WX DUALWATCH TRI WATCH SIMULATION If a signal is received on Channel 16 Dualwatch Tri watch...

Page 19: ...or starts blinking r Edit the specified MMSI code by pushing Y or Z Push 6 or CH WX to move the cursor forward or backward respectively t Input 9 digit code then push DSC to set the code Returns to th...

Page 20: ...iate address ID Push 6 or CH WX to move the cursor forward or backward respectively Push SCAN to cancel and exit the condition 1st digit 0 is fixed for a group ID When you input 1st digit 0 and other...

Page 21: ...is con nected the transceiver indicates the current position data in seconds of accuracy A NMEA0183 ver 2 0 or 3 01 sentence formatters RMC GGA GNS GLL compatible GPS receiver is required Ask your de...

Page 22: ...l is transmitted e After transmitting the call the transceiver waits for an ac knowledgment call on Channel 70 The Distress call is automatically transmitted every 3 5 to 4 5 minutes scrolls at the ch...

Page 23: ...to select the desired pre programmed individ ual address using Y or Z then push DSC The ID code for the individual call must be set in advance p 14 e Push Y or Z to select a desired intership channel...

Page 24: ...ge to the responding ship when Able to comply is received D Transmitting Individual acknowledgement When receiving an Individual call you can transmit an ac knowledgement Able to comply or Unable to c...

Page 25: ...has been transmit ted the display changes to the channel specified by the calling station automatically when is selected D Transmitting Group call The Group call function allows you to transmit a DSC...

Page 26: ...all If Channel 70 is busy the transceiver stands by until the channel becomes clear Routine category only is available y After the Group call has been transmitted the display changes to the previously...

Page 27: ...on q Push DSC to enter the DSC menu w Push Y or Z to select e Push DSC to enter the standby condition for All Ships call Channel 70 is selected and appears r Push DSC to transmit the All Ships call Ro...

Page 28: ...n dividual address The ID code for position request must be set in advance p 14 r Push DSC to enter the standby condition for Position Re quest call Channel 70 is selected and appears t Push DSC to tr...

Page 29: ...n dividual address The ID code for the position report call can be set in advance p 14 r Push DSC to enter the standby condition for Position Re port call Channel 70 is selected and appears t Push DSC...

Page 30: ...ng a Distress acknowledgement While monitoring Channel 70 and a Distress acknowledge ment to other ship is received The emergency alarm sounds Push any key to stop the alarm DSC appears and scrolls at...

Page 31: ...ice communication depending on your replying con dition see p 18 for individual acknowledgement call pro cedure for details push any other key to ignore the Indi vidual call D Receiving a Group call W...

Page 32: ...While monitoring Channel 70 and a Geographical Area call for the area you are in is received The emergency alarm or beeps sound depending on the received category DSC appears and scrolls at the chan...

Page 33: ...ed and scrolled automatically in order of Latitude co ordinates and then Longitude co ordinates after replying the call D Receiving a Position Reply call While monitoring Channel 70 and a Position Rep...

Page 34: ...g D Set mode operation q Turn power OFF w While pushing 6 turn power ON to enter Set mode e After the display appears release 6 appears at the channel comment indicator r Push 6 to select the desired...

Page 35: ...l has been re ceived on any other channel than Channel 16 D D Weather alert A NOAA broadcast station transmits a weather alert tone be fore important weather information When the weather alert functio...

Page 36: ...D Automatic acknowledgement This item sets the Automatic acknowledgement function ON or OFF When Position Request call or Position Report call is re ceived transceiver automatically transmits Position...

Page 37: ...onnects the supplied DC power cable from this connector to an external 13 8 V DC power source CAUTION After connecting the DC power cable GPS receiver lead and external speaker lead cover the con nect...

Page 38: ...wer cable If a fuse blows or the transceiver stops functioning track down the source of the problem if possible and replace the damaged fuse with a new rated one Cleaning If the transceiver becomes du...

Page 39: ...that the face of the transceiver is at 90 to your line of sight when operating it CAUTION KEEP the transceiver and microphone at least 1 meter away from your vessel s magnetic navigation com pass NOT...

Page 40: ...n to mount the trans ceiver w Slide the transceiver through the hole as shown below e Attach the clamps on either side of the transceiver with 2 supplied bolts 5 8 mm Make sure that the clamps align p...

Page 41: ...the connection to the transceiver Transmitting is impossi ble or high power can not be selected Some channels are for low power or re ceive only The output power is set to low pgs 5 6 36 p 7 Change ch...

Page 42: ...6 075 156 075 156 125 160 725 62 62A 156 125 156 125 156 175 160 775 63 63A 156 175 156 175 64 156 225 160 825 64 64A 64A 156 225 156 225 156 275 160 875 65 65A 65A 156 275 156 275 65A 156 325 160 925...

Page 43: ...825 g 1 8 lb Transmitter Output power 25 W High and 1 W Low Modulation system Variable reactance frequency modu lation Max frequency deviation 5 0 kHz Spurious emissions Less than 70 dBc High Less tha...

Page 44: ...MOUNT KIT For mounting the transceiver to a panel MB 92 DUST COVER For attaching to the front panel of the transceiver to protect it when not in use Unit mm inch 153 0 6 1 32 67 0 2 5 8 143 5 5 21 32...

Page 45: ...5 8 53 0 2 3 32 Cut here NOTE The solid line is the line to use when cutting into the dash helm The dotted line shows the outline of the IC M304 s front panel once the radio is fitted into the hole D...

Page 46: ......

Page 47: ...MEMO...

Page 48: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A 6542D 1US Printed in Japan 2006 Icom Inc...

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