Icom IC-M506, Service Manual

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1-2
All stated specifi cations are subject to change without notice or obligation.
M
IC-M506EURO
General
D
• Frequency coverage:
Tx
156.000–162.000 MHz
Rx 156.000–163.425 MHz
CH70 156.525 MHz
• Mode: FM, DSC
• Channel spacing: 25 kHz
• Operating temperature range:
–20°C to +60°C
• Current drain (at 13.8 V):
TX high 5.5 A maximum
Maximum audio 5.0 A maximum (With EXT SP)
Maximum audio 1.5 A maximum (With INT SP)
• Power supply requirement:
(negative ground) 13.8 V DC (10.8 to 15.6 V DC)
• Frequency error: Less than ±0.5 kHz
• Antenna impedance: 50

nominal
• Dimensions: 178.9 (W) × 113.9 (H) × 113.8 (D) mm
(Projections not included)
• Weight (approximately): 1.4 kg
Transmitter
D
• Output power: 25 W/1 W
• Modulation system: Frequency modulation
• Maximum frequency deviation:
±5.0 kHz
• Spurious emissions: Less than 0.25 µW
Receiver
D
• Receive system: Double conversion
superheterodyne
• Sensitivity:
FM (20 dB SINAD) –5 dBµ emf (typical)
DSC (1% BER) –4 dBµ emf (typical)
• Squelch sensitivity: Less than –2 dBµ emf
• Intermodulation rejection ratio:
FM More than 75 dB
DSC (1% BER) More than 68 dBµ emf
• Spurious response rejection ratio:
FM More than 75 dB
DSC (1% BER) More than 73 dBµ emf
• Adjacent channel selectivity:
FM More than 75 dB
DSC (1% BER) More than 73 dBµ emf
• Audio output power: More than 15 W at 10% distortion into
a 4

external speaker
• International channels
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
CH
Frequency (MHz)
Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive
01 156.050 160.650 11 156.550 156.550 21 157.050 161.650 61 156.075 160.675 71 156.575 156.575 81 157.075 161.675
02 156.100 160.700 12 156.600 156.600 22 157.100 161.700 62 156.125 160.725 72 156.625 156.625 82 157.125 161.725
03 156.150 160.750 13 156.650 156.650 23 157.150 161.750 63 156.175 160.775 73 156.675 156.675 83 157.175 161.775
04 156.200 160.800 14 156.700 156.700 24 157.200 161.800 64 156.225 160.825 74 156.725 156.725 84 157.225 161.825
05 156.250 160.850 15*
2
156.750 156.750 25 157.250 161.850 65 156.275 160.875 75*
4
156.775 156.775 85 157.275 161.875
06 156.300 156.300 16 156.800 156.800 26 157.300 161.900 66 156.325 160.925 76*
4
156.825 156.825 86 157.325 161.925
07 156.350 160.950 17*
2
156.850 156.850 27 157.350 161.950 67 156.375 156.375 77 156.875 156.875 87 157.375 157.375
P4*
3
161.425 161.425
88 157.425 157.425 08 156.400 156.400 18 156.900 161.500 28 157.400 162.000 68
69
156.425 156.425 78 156.925 161.525
09 156.450 156.450 19 156.950 161.550 37A*
3
157.850 157.850 156.475 156.475 79 156.975 161.575
10 156.500 156.500 20 157.000 161.600 60 156.025 160.625 70*
1
156.525 156.525 80 157.025 161.625
*
1
DSC operation only.
* 3 UK Marina Channels: M1=37A (157.850 MHz), M2=P4 (161.425 MHz) for U.K. version only
*
2
Channels 15 and 17 may also be used for on-board communications provided the effective radiated power does not exceed 1
W, and subject to the national regulations of the administration concerned when these channels are used in its territorial waters.
*
4
The output power of channels 75 and 76 are limited to low power (1 W) only. The use of these channels should be restricted
to navigation-related communications only and all precautions should be taken to avoid harmful interference to channel 16,
e.g. by means geographical separation.
• USA channels
(for U.K. version only)
Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz)
Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive
156.050 156.050 156.600 156.600 157.100 157.100 156.225 156.225 156.775 156.775
156.825 156.825
156.875 156.875
157.325 161.925
- - - - - - 156.650 156.650 157.150 157.150 156.275 156.275
156.925 156.925
157.325 157.325
156.150 156.150 156.700 156.700 157.200 161.800 156.325 156.325
156.975 156.975
157.375 161.975
- - - - - - 156.750 156.750 157.250 161.850 156.375 156.375
157.025 157.025
157.375 157.375
156.250 156.250 156.800 156.800 157.300 161.900 156.425 156.425
157.075 157.075
157.425 162.025
156.300 156.300 156.850 156.850 157.350 161.950 156.475 156.475
157.125 157.125
157.425 157.425
161.425 161.425
156.350 156.350 156.900 156.900 157.400 162.000 156.525 156.525
157.175 157.175
156.400 156.400 156.950 156.950 157.850 157.850 156.575 156.575
157.225 161.825
156.450 156.450 157.000 161.600 156.075 156.075 156.625 156.625
157.225 157.225
156.500 156.500 157.000 157.000 - - - - - - 156.675 156.675
156.550 156.550 157.050 157.050 156.175 156.175 156.725 156.725
157.275 161.875
157.275 157.275
12
13*
2
20A
21A
20
19A
18A
17*
1
16
15*
2
14
CH
22A
23A
- -
63A
61A
37A*
4
28
27
26
25
24
CH
64A
65A
73
74
72
71
70*
3
69
68
67*
2
66A
CH
75*
1
76*
1
84
84A
83A
82A
81A
80A
79A
78A
77*
1
CH
85
85A
P4*
4
88A
88
87A
87
86A
86
CH
01A
- -
10
11
09
08
07A
06
05A
- -
03A
CH
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.
*
1 Low power only.
*
2 Momentary high power.
*
3 DSC operation only.
*
4
UK Marina Channels: M1=37A (157.850 MHz), M2=P4 (161.425 MHz) for U.K. version only
Channel list
D