Icom IC-F2721 Service Manual

Also see for IC-F2710: Operating guide Instruction manual Instruction manual Service manual

Contents

Icom IC-F2721 Service Manual Manual pdf 4 page image

SECTION 1 SPECIFICATIONS1 - 1IC-F2721/D, IC-F2821/D IC-F2710, IC-F2810USA GEN EURGENERALMeasurement method EIA-152-C/204D or TIA-603 EN 300 086Frequency coverage [L] : 400.000–470.000 MHz[H] : 450.000–512.000 MHz[L] : 400.000–470.000 MHz[H] : 480.000–520.000 MHzType of emission8K10F1E/8K10F1D*/11K0F3E/16K0F3E*IC-F2721D, IC-F2821D only8K50F3E/16K0F3E 8K50F3E/14K0F3E/16K0F3ENumber of conventional channels Max. 256 channelsPower supply voltage(negative ground) 13.6 V DC nominal 13.2 V DC nominalCurrent drain (approx.)TX 14.0 A (at 45 W) 7.0 A (at 25 W)RX Stand-by : 600 mAMax. audio : 1200 mAFrequency error ±2.0 ppm ±1.5 kHzOperating temperature range –30ºC to +60ºC (–22ºF to +140ºF) –25ºC to +55ºCDimensions (proj. not included) 175(W) × 45(H) × 170(D) mm; 67⁄8 (W) × 1 25 ⁄32 (H) × 611⁄ 16(D) inWeight (approx.) 1.5 kg; 35⁄ 16 lbTRANSMITTERRF output power (Hi/L2/L1) 45 W/25 W/4.5 W 25 W/10 W/2.5 WModulation system Variable reactance frequency modulationMaximum permissible deviation ±2.5 kHz [Narrow], ±4.0 kHz [Middle], ±5.0 kHz [Wide]Spurious emissions 75 dB typical 0.25 μW (≤ 1 GHz)1.0 μW (> 1 GHz)Adjacent channel power 60 dB min. [Narrow], 70 dB min. [Middle]/[Wide]Audio frequency response +2 dB to −5 dB of 6 dB/octave rangefrom 300 Hz to 2550 Hz [Narrow]/3000Hz [Middle]/[Wide]Audio harmonic distortion 3% typical at 1 kHz, 40% deviationLimiting charact of modulator 70–100% of max. deviationMicrophone connector 8-pin modular (600 Ω)RECEIVERReceive system Double conversion superheterodyne systemIntermediate frequencies 1st: 46.35 MHz, 2nd: 450 kHzSensitivity (typical) 0.3 μV at 12 dB SINAD –4 dBμV (emf) at 20 dB SINADSquelch sensitivity (typical) 0.3 μV –4 dBμV (emf)Adjacent channel selectivity 60 dB min. (75 dB typical) [Narrow], 70 dB min. (80 dB typical) [Middle]/[Wide]Spurious response 70 dB min. (80 dB typical)Intermodulation 70 dB min. (75 dB typical) [Narrow]70 dB min. (77 dB typical) [Wide] 65 dB min. (70 dB typical)Audio output power 4 W typical at 10% distortion with a 4 Ω load22 W typical (BTL) at 10% distortion with a 4 Ω load (D-SUB 25 connector)External SP connector 2-conductor 3.5 (d) mm (1/8 ")/4 ΩAll stated specifications are subject to change without notice or obligation.