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SECTION 1. SPECIFICATIONS
GENERAL
IC-M73
IC-M73EURO
IC-M73EURO
(AUS version)
• Frequency coverage
TX
156.025–157.425 MHz
156.000–161.450 MHz
156.025–157.425 MHz
RX
156.050–163.275 MHz
156.000–163.425 MHz
156.300–162.025 MHz
• Type of emission
16K0G3E
• Antenna impedance
50
Ω
(nominal)
• Operating temperature range
–20°C to +60°C
(–4°F to +140°F)
–15°C to +55°C
–10°C to +55°C
• Power supply requirement
7.4 V DC nominal (negative ground)
• Current drain
(approximately)
RX
0.25 A (at maximum audio, using external 8
Ω
speaker)
0.45 A (at maximum audio, using internal speaker)
TX
6.0 W
1.5 A
–
5.0 W
–
1.4 A
3.0 W
1.2 A
1.0 W
0.7 A
0.5 W
–
0.6 A
–
• Dimensions (projections not included)
52.5(W) × 125(H) × 30(D) mm; 2.0(W) × 4.9(H) × 1.2(D) inches
• Weight (approximately)
280 g; 9.9 oz (Including only BP-245N)
320 g; 11.3 oz (Including BP-245N, FA-S64V and MB-103)
TRANSMITTER
• Output power
High
6 W
6 W (1 W for [FRG])
5 W
Middle
3 W
Low
1 W
1 W (0.5 W for [FRG])
1 W
• Modulation
Variable reactance frequency modulation
• Maximum frequency deviation
±5 kHz
• Frequency error
±10 ppm
±1.5 kHz
±10 ppm
• Spurious emissions
–68 dBc (typical)
0.25 µW
• Adjacent channel power
70 dB
• Audio harmonic distortion
10% (at 60% deviation)
• FM hum and noise
40 dB
• Audio frequency response
+1 dB to –3 dB of 6 dB octave from 300 Hz to 3000 Hz
• Microphone impedance
2 k
Ω
RECEIVER
• Intermediate frequency
1st 21.7 MHz 2nd 450 kHz
• Sensitivity
–13 dBµ (0.22 µV)
(at 12 dB SINAD) typical
–4 dBµ emf (at 20 dB SINAD)
typical
–5 dBµ emf (at 20 dB
SINAD) typical
• Squelch sensitivity (at threshold)
–9 dBµ (0.35 µV) typical
–5 dBµ emf typical
–6 dBµ emf typical
• Adjacent channel selectivity
70 dB typical
70 dB
65 dB
• Spurious response
70 dB typical
70 dB
65 dB
• Intermodulation rejection ratio
70 dB typical
68 dB
65 dB
• Hum and Noise
40 dB
• Audio frequency response
+1 dB to –3 dB of –6 dB octave from 300 Hz to 3000 Hz
• Audio output power
(at 10% distortion with an 8
Ω
load)
0.35 W typical (External)
0.2 W (External)
0.7 W typical (Internal)
0.7 W typical (Internal) at 1 kHz
• Output impedance (audio)
8
Ω
All stated specifications are subject to change without notice or obligation.
