Icom IC-A24 Service Manual

Also see for IC-A6: Price list Specification sheet Instruction manual Instruction manual Instruction manual

Contents

specifications

Icom IC-A24 Service Manual Manual pdf 4 page image

1 - 1SECTION 1 SPECIFICATIONS▄ GENERAL• Frequency coverage : TX 118.000–136.975 MHzRX 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 : Specified 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 typicalReceive 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; 53⁄32(W) × 21⁄8(H) × 113⁄32(D) in• Weight (antenna, battery pack not included) : 180 g; 611⁄32 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 kΩ (3-conductor 2.5(d) mm ( 1⁄10"))▄ RECEIVER• Receive system : Double conversion superheterodyne• Intermediate frequencies : 1st 30.05 MHz2nd 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 filter) 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 dBexcept [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 ΩSpecifi 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.