Specifications - Icom IC-M72 Service Manual
Vhf marine transceiver
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Also See for IC-M72:
- Instruction manual (40 pages) ,
- Instruction manual (40 pages) ,
- Instruction manual (20 pages)
Table of Contents
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SECTION 1
• Frequency coverage
• Type of emission
• Antenna impedance
• Operating temperature range
• Power supply requirement
• Current drain (approx.)
• Dimensions (projections not included)
• Weight (approx.)
• Output power
• Modulation
• Max. frequency deviation
• Frequency error
• Spurious emissions
• Adjacent channel power
• Audio harmonic distortion
• Residual modulation
• Audio frequency response
• Microphone impedance
• Receive system
• Intermediate frequency
• Sensitivity
• Squelch sensitivity
• Adjacent channel selectivity
• Spurious response
• Intermodulation rejection ratio
• Hum and Noise
• Audio frequency response
• Audio output power
• Output impedance (audio)
Specifications are measured in accordance with TIAIA–603.
All stated specifications are subject to change without notice or obligation.
SPECIFICATIONS
TX
156.025–157.425 MHz
RX
156.050–163.275 MHz
16K0G3E
50 Ω (nominal)
−20˚C to +60˚C; −4˚F to +140˚F
Specifi ed Icom's battery pack only (operating volage 7.5 V DC; negative ground)
0.4 A (internal speaker)
RX (Max. audio)
0.2 A (external speaker)
at 6 W
1.7 A
at 5 W
1.5 A
TX
at 3 W
1.3 A
at 1 W
0.7 A
52.5(W) × 125(H) × 30(D) mm; 2
280 g; 9.9 oz. (Including BP-245)
6 W (Except [AUS], [AUS-1])
High
5 W ([AUS], [AUS-1])
Middle
3 W
Low
1 W
Variable reactance frequency modulation
±5 kHz
±10 ppm
–68 dBc typ.
70 dB
10% (at 60% deviation)
40 dB
+1 dB to –3 dB of 6 dB oct. from 300 Hz to 3000 Hz
2 kΩ
Double-conversion super heterodyne
1st; 21.7 MHz, 2nd; 450 kHz
–13 dBµ typ. (at 12 dB SINAD)
–9 dBµ typ. (at threshold)
70 dB typ.
70 dB typ.
70 dB typ.
40 dB
+1 dB to –3 dB of –6 dB oct. from 300 Hz to 3000 Hz
0.6 W typ. (at 10% distortion with an 8 Ω load)
Internal speaker
External speaker 0.35 W typ. (at 10% distortion with an 8 Ω load)
8 Ω
1
/
(W) × 4
16
1 - 1
3
29
/
(H) × 1
/
(D) in.
32
16
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Table of Contents
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Questions and answers
Sound does not work
The sound might not work on the Icom IC-M72 due to the following reasons:
1. Squelch Level: The squelch level may be set too high, which blocks audio. Adjust it by pushing the appropriate buttons (`[ ]`, `[Y]`/`[Z]`) to lower the squelch level.
2. Volume Setting: The volume may be set too low. Rotate the `[VOL]` knob to increase the volume.
3. Signal Reception: Ensure the radio is receiving a signal. The " " indicator should appear when a signal is being received, and audio should emit from the speaker.
4. Speaker Issue: Check if the speaker is functioning properly. If the external speaker or audio output is faulty, repair or replacement may be needed.
5. Incorrect Channel: Verify that the correct channel is selected, as some channels may not have active transmissions.
If these adjustments do not resolve the issue, further inspection or servicing may be required.
This answer is automatically generated