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Icom IC-A24 Service Manual

Icom IC-A24
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SECTION 1 SPECIFICATIONS
GENERAL
• Frequency coverage : TX 118.000–136.975 MHz
RX 108.000–136.975 MHz [IC-A24/E]
118.000–136.975 MHz [IC-A6/E]
WX 161.650–163.275 MHz [USA] only
• Type of emission : 6K00A3E, 16K0G3E (Weather channel; [USA] only)
• Channel spacing : 25 kHz
• Number of memory channels : 20 channels
×
10 banks
• Power supply requirement :
Specifi ed ICOM's battery packs (BP-208N, BP-209N, BP-210N, BP-211N)
• External power supply requirement : 11.0 V DC
• Current drain (at 7.2 V DC) : Transmit 1.5 A typical
Receive 300 mA typical (AF max.)
70 mA typical (Stand-by)
• Operating temperature range : –10°C to +60°C; +14°F to +140°F [GEN], [USA], [CHN]
–20°C to +55°C [EUR]
–10°C to +50°C [AUS]
• Frequency stability : ±5 ppm
• Antenna connector : BNC type (50
Ω
nominal)
• Dimensions (projections not included) : 129.3(W)
×
54(H)
×
35.5(D) mm; 5
3
32
(W)
×
2
1
8
(H)
×
1
13
32
(D) in
• Weight (antenna, battery pack not included) : 180 g; 6
11
32
oz (Approx.)
TRANSMITTER
RF output power (at 7.2 V DC) : 5.0 W (PEP) typical, 1.5 W (CW) typical [GEN], [USA], [CHN]
3.6 W (PEP) typical, 1.0 W (CW) typical [EUR], [AUS]
• Modulation system : Low level modulation
• Modulation limiting : 70–100% [GEN], [USA], [CHN]
• Modulation depth : 85% [EUR]
85% to 95% [AUS]
• Audio harmonic distortion : Less than 10% (at 60% modulation) [GEN], [USA], [CHN]
Less than 10% (at 85%±3 dB modulation) [EUR]
• Hum and noise ratio : More than 35 dB [GEN], [USA], [CHN]
• Spurious emissions : More than 46 dB [GEN], [USA], [CHN]
(except operating frequency ±62.5 kHz range)
• Harmonic spurious emissions : Less than –36 dBm [EUR]
(except operating frequency ±1 MHz range) Less than –26 dBm [AUS]
• Microphone connector impedance : More than 100 k
Ω (
3-conductor 2.5(d) mm (
1
10
"))
RECEIVER
• Receive system : Double conversion superheterodyne
• Intermediate frequencies : 1st 30.05 MHz
2nd 450 kHz
Sensitivity :
VOR (AM 6 dB S/N) 0.71 µV typical [IC-A24/E]
COM (AM 6 dB S/N) 0.5 µV typical [GEN], [USA], [CHN]
COM (AM 12 dB SINAD with CCITT fi lter) 0.71 µV typical [EUR], [AUS]
WX (FM 12 dB SINAD) 0.22 µV typical [USA]
• Threshold squelch sensitivity : Less than 1 µV (AM)
Less than 0.45 µV (FM for WX channel) [USA]
• Selectivity : More than 7.5 kHz/6 dB, Less than 25 kHz/60 dB
except [AUS]
More than 60dB [AUS]
• Spurious response rejection ratio : More than 60 dB (AM), More than 30 dB (FM)
[GEN], [USA], [CHN]
More than 70 dB (AM) [EUR]
More than 60 dB (AM) [AUS]
• Audio output power (at 7.2 V DC) : 500 mW typical
(at 10% distortion with an 8
Ω
load, 30% modulation)
• Hum and noise : More than 40 dB at 30% modulation [GEN], [USA], [CHN]
More than 40 dB at 90% modulation [EUR]
More than 30 dB [AUS]
• External speaker connecter : 3-conductor 3.5(d) mm (
1
8
")/ 8
Ω
Specifi cations are measured in accordance with FCC Part87 ([USA]], [GEN], [CHN]), EN300 676 ([EUR], [UK]) or AS/NZS 4583:1999 ([AUS])
All stated specifi cations are subject to change without notice or obligation.

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Icom IC-A24 Specifications

General IconGeneral
BrandIcom
ModelIC-A24
CategoryTransceiver
LanguageEnglish

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