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SECTION 1 SPECIFICATIONS
• Frequency coverage
• Mode
• Usable channels
: 156.020–157.425 MHz (Tx)
156.050–163.275 MHz (Rx)
: 16K0G3E (FM) / 16K0G2B (DSC)
: All international, U.S.A and Canadian channels, plus, 10 Weather channels
• Power supply requirement
• Usable temperature range
: 13.8 V DC ±15 % (negative ground)
: –20˚C to +60˚C; –4 ˚F to +140 ˚F
• Current drain (at 13.8 V DC) : Transmit
Receive at 25 W max. audio
5.2 A typical
1.2 A typical
• Antenna connector : SO-239 (50
Ω)
• Dimensions (projections not included) : 220(W)
×110(H)×109.4(D) mm; 8
21
⁄
32
(W)
×
4
11
⁄
32
(H)
×
4
5
⁄
16
(D) inch
• Weight : 1350 g; 2.97 lb
• Output power (at 13.8 V DC)
• Modulation
• Maximum frequency deviation
• Frequency error
• Spurious emissions
• Adjacent channel power
• Residual modulation
• Audio harmonic distortion
• Audio frequency response
• Microphone impedance
: High
Low
25 W
1 W
: Variable reactance frequency modulation
: ±5.0 kHz
: ±0.3 kHz
: Less than –70 dBc
: More than 70 dB
: More than 40 dB
: Less than 10% at 60% deviation
: +1 dB to –3 dB of 6 dB octave from 300 Hz to 3000 Hz
: 2 k
Ω
• Receive system
• Intermediate frequencies
• Sensitivity
• Squelch sensitivity
• Adjacent channel selectivity
• Spurious response
• Intermodulation rejection ratio
• Hum and noise
• Audio output power (at 13.8 V DC)
• Audio frequency responce
• GPS interface
* 1 For Channel 70 only, * 2 For other channels
: Double conversion superheterodyne system
: 1st
2nd
21.7 MHz*
1
, 31.05 MHz*
2
450 kHz
: Less than –10 dBµ at 12 dB SINAD
: Less than –10 dBµ at threshhold
: More than 80 dB
: More than 80 dB
: more than 80 dB
: More than 40 dB
: 5.0 W at 10% distortion with a 4
Ω load
: +1 dB to –3 dB of –6 dB octave from 300 Hz to 3000 Hz
: NMEA0183 Ver. 2.0 or 3.01
Specifications are measured in accordance with TIA/EIA 603
All stated specifications are subject to change without notice or obligation.
1 - 1
Channel No.
USA INT
01
CAN
01
01A
02
03
02
03
03A
04
04A
05
05A
06 06
07
05A
06
07A
08
09
10
11
12
13* 1
14
19A
20
20A
12
13
14
08
09
10
11
15* 1
16
15* 1
16
15* 1
16
17* 1 17
18
17* 1
18A 18A
19
20
07A
08
09
10
11
12
13* 1
14
19A
20* 1
21 21
156.600
156.650
156.700
156.750
156.800
156.850
156.900
156.900
156.950
156.950
157.000
157.000
157.050
156.250
156.250
156.300
156.350
156.350
156.400
156.450
156.500
156.550
Frequency (MHz)
Transmit
156.050
Receive
160.650
156.050
156.050
156.100
156.150
156.150
156.200
156.200
160.700
160.750
156.150
160.800
156.200
160.850
156.250
156.300
160.950
156.350
156.400
156.450
156.500
156.550
156.600
156.650
156.700
156.750
156.800
156.850
161.500
156.900
161.550
156.950
161.600
157.000
161.650
Channel No.
USA
21A
INT CAN
21A
21b
22
22A
23
22A
23
23A
24
25
24
25
24
25
25b
26
27
28
26
27
28
60
61
26
27
28
28b
60
61A
63A
67* 1
68
69
62
63
67
68
69
61A
62A
64A
64 64
64A
65
65A 65A 65A
66
66A 66A 66A* 1
67
68
69
Frequency (MHz)
Transmit
157.050
Receive
157.050
RX only
157.100
157.100
157.150
157.150
157.200
157.250
RX only
157.300
157.350
157.400
RX only
156.025
156.075
156.075
156.125
156.125
156.175
156.175
156.225
156.225
156.275
156.275
156.325
156.325
156.375
156.425
156.475
161.650
161.700
157.100
161.750
157.150
161.800
161.850
161.850
161.900
161.950
162.000
162.000
160.625
160.675
156.075
160.725
156.125
160.775
156.175
160.825
156.225
160.875
156.275
160.925
156.325
156.375
156.425
156.475
82A
83A
84
84A
85
85A
86
86A
87
Channel No.
USA INT CAN
70* 2 70* 2 70* 2
71 71 71
72
73
74
77*
1
72
73
74
77
78
72
73
74
77*
1
78A 78A
79
79A 79A
80
80A 80A
81
81A 81A
82
87A
88
88A
83
84
85
86
87
88
82A
83
83A
83b
84
85
86
87
88
157.175
157.175
RX only
157.225
157.225
157.275
157.275
157.325
157.325
157.375
157.375
157.425
157.425
156.925
156.975
156.975
157.025
157.025
157.075
157.075
157.125
157.125
Frequency (MHz)
Transmit
156.525
Receive
156.525
156.575
156.575
156.625
156.675
156.725
156.875
156.925
156.625
156.675
156.725
156.875
161.525
156.925
161.575
156.975
161.625
157.025
161.675
157.075
161.725
157.125
161.775
157.175
161.775
161.825
157.225
161.875
157.275
161.925
157.325
161.975
157.375
162.025
157.425
* 1 Low power only, * 2 Receive only
NOTE: Channels 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be used by the general public in USA waters.
Weather channel
WX01
WX02
WX03
WX04
WX05
Frequency (MHz)
Transmit Receive
Receive only
Receive only
162.550
162.400
Receive only
Receive only
Receive only
162.475
162.425
162.450
Weather channel
WX06
WX07
WX08
WX09
WX10
Frequency (MHz)
Transmit Receive
Receive only
Receive only
162.500
162.525
Receive only
Receive only
Receive only
161.650
161.775
163.275
1 - 2
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Table of contents
- 1 FRONT COVER
- 2 INTRODUCTION
- 3 TABLE OF CONTENTS
- 4 SPECIFICATIONS
- 5 Channel list
- 6 INSIDE VIEWS
- 6 IC-M602
- 7 HM-127
- 8 DISASSEMBLY INSTRUCTION
- 10 CIRCUIT DESCRIPTION
- 10 Receiver circuits
- 12 Transmitter circuits
- 13 PLL circuits
- 14 DSC circuits
- 14 LOGIC circuits
- 15 Power supply circuits
- 15 Port allocations
- 17 ADJUSTMENT PROCEDURES
- 17 Preparation
- 18 PLL adjustments
- 19 Receiver adjustments
- 21 PARTS LIST
- 21 SQL board
- 21 VR board
- 21 Connect unit
- 21 Dial board
- 21 Front unit
- 21 Logic board
- 23 AF unit
- 25 Main unit
- 29 HM-136
- 30 HM-127
- 31 MECHANICAL PARTS AND DISASSEMBLY
- 34 SEMI-CONDUCTOR INFORMATION
- 35 BOARD LAYOUTS
- 35 VR board
- 35 SQL board
- 35 DIAL board
- 35 CONNECT unit
- 36 LOGIC board
- 38 MAIN unit
- 40 AF unit
- 42 HM-136
- 42 HM-127
- 44 BLOCK DIAGRAM
- 45 WIRING DIAGRAM
- 46 VOLTAGE DIAGRAM
- 46 LOGIC BOARD
- 47 MAIN UNIT (1)
- 48 MAIN UNIT (2)
- 49 AF UNIT
- 50 HM-136
- 51 HM-127
- 52 ADDRESS
- 53 BACK COVER