Specifications And Options; Specifications - Icom ic-m423 Instruction Manual

■ Specifications

D General
• Frequency coverage:
Tx IC-M423/IC-M423G
IC-M424/IC-M424G
IC-M423 (CHN version)
Rx IC-M423/IC-M423G
IC-M424/IC-M424G
IC-M423 (CHN version)
CH70
• Mode:
• Channel spacing:
• Operating temperature range:
• Current drain (at 13.8 V):
TX high
Maximum audio
• Power requirement:
(negative ground)
• Frequency stability:
• Antenna impedance:
• Dimensions (approximately):
• Weight (approximately):
D Transmitter
• Output power:
All stated specifications are subject to change without notice or obligation.

SPECIFICATIONS AND OPTIONS

156.000–161.450 MHz
156.025–157.425 MHz
156.025–157.425 MHz
156.000–163.425 MHz
156.050–163.275 MHz
156.050–162.025 MHz
156.525 MHz
16K0G3E (FM)
16K0G2B (DSC)
25 kHz
–20°C to +60°C;
–4ºF to +140ºF
5.5 A maximum
5.0 A maximum
13.8 V DC nominal
±1.5 kHz (–20°C to +60°C;
–4°F to +140°F)
Ω nominal
50
180(W) × 82(H) × 135(D) mm
; 7.1(W) × 3.2(H) × 5.3(D) inches
(Projections not included)
1.2 kg; 2.6 lb
25 W/1 W
• Modulation system:
• Maximum frequency deviation: ±5.0 kHz
• Spurious emissions:
IC-M423/IC-M423G Less than 0.25 µW
IC-M424/IC-M424G Less than –70 dBc (high)
Less than –56 dBc (low)
D Receiver
• Receive system: Double conversion superheterodyne
• Sensitivity:
FM IC-M423/IC-M423G –5 dBµ emf typical (at 20 dB SINAD)
IC-M424/IC-M424G –13 dBµ typical (at 12 dB SINAD)
DSC IC-M423/IC-M423G –4 dBµ emf typical (1% BER)
IC-M424/IC-M424G –5 dBµ emf typical (1% BER)
• Squelch sensitivity:
IC-M423/IC-M423G Less than –2 dBµ emf
IC-M424/IC-M424G Less than –10 dBµ
• Intermodulation rejection ratio:
FM IC-M423/IC-M423G More than 68 dB
IC-M424/IC-M424G More than 70 dB
DSC More than 68 dBµ emf (1% BER)
• Spurious response rejection ratio:
FM More than 70 dB
DSC More than 73 dBµ emf (1% BER)
• Adjacent channel selectivity:
FM More than 70 dB
DSC More than 73 dBµ emf (1% BER)
• Audio output power:
IC-M423/IC-M423G More than 10 W at 10% distortion
into a 4 Ω load
IC-M424/IC-M424G 10 W at 10% distortion into a 4 Ω
load
11
Variable reactance frequency
modulation
1
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5
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