Icom IC-F43GS, Service Manual

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SECTION 1 SPECIFICATIONS
M
GENERAL
• Frequency coverage : 380.000–430.000 MHz [USA-03]
450.000–512.000 MHz [USA-01], [USA-02], [USA-04]
450.000–520.000 MHz [GEN-01], [GEN-02]
350.000–390.000 MHz [GEN-04]
400.000–470.000 MHz [others]
• Mode : FM
• Type of emission : Wide: 16K0F3E (25.0 kHz)
Middle: 14K0F3E (20.0 kHz)
Narrow: 11K0F3E/8K50F3E (12.5 kHz)
• Number of conventional channels : 250 ch (LTR/PassPort)
256 ch (16 banks)
32 ch (MPT)
• Antenna impedance : 50
Ω
(nominal)
• Operating temperature range : –30˚C to +60˚C (–22˚F to +140˚F) except [F44GT/GS]
–25˚C to +55˚C [F44GT/GS]
• Power supply requirement : 7.2 V DC nominal (negative ground)
• Current drain (at 7.2 V DC) : Receiving 85 mA (stand-by)
300mA (max. audio)
Transmitting 1.7 A (4 W)
0.8 A (1 W)
• Dimensions (projections not included) : 53.0(W) × 120.0(H) × 32.5(D) mm; 2
3
⁄
32
(W) × 4
23
⁄
32
(H) × 1
9
⁄
32
(D) in
• Weight
(with BP-230N+FA-SC57U+MB-94) : 300 g; 10
3
⁄
8
oz (Approx.)
M TRANSMITTER
• Output power (at 7.2 V DC) : High: 4 W, Low: 1 W
• Modulation : Variable reactance frequency modulation
• Maximum permissible deviation : ±5.0 kHz (Wide), ±4.0 kHz (Middle), ±2.5 kHz (Narrow)
• Frequency error : ±2.0 ppm; ±1.5 kHz
• Spurious emissions : 70 dB (typical) except [F44GT/GS]
0.25 µW (
≤
1 GHz), 1.0 µW (
≥
1 GHz) [F44GT/GS]
• Adjacent channel power : 70 dB min. (Wide/Middle)
60 dB min. (Narrow)
• Audio harmonic distortion : 3% typical (at 1 kHz, 40% deviation)
• Limiting charact of modulator : 60–100% of maximum deviation
• FM hum and noise : 40 dB min. 46 dB typ. (Wide)
34 dB min 40 dB typ. (Narrow)
• Microphone impedance : 2.2 k
Ω
M
RECEIVER
• Receive system : Double conversion superheterodyne system
• Intermediate frequencies : 1st IF: 46.35 MHz, 2nd IF: 450 kHz [others]
1st IF: 47.25 MHz, 2nd IF: 450 kHz [USA-03], [GEN-04]
• Sensitivity : 0.25 µV (–119 dBm) typical at 12 dB SINAD except [F44GT/GS]
–4 dBµV (–111 dBm) emf typ. at 20 dB SINAD [F44GT/GS]
• Squelch sensitivity (at threshold) : 0.25 µV typical
–4 dBµV (–111 dBm) emf typ.
• Adjacent channel selectivity : 70 dB min (75 dB typical) for Wide except [F44GT/GS]
70 dB min (73 dB typical) for Wide [F44GT/GS]
60 dB min (65 dB typical) for Narrow except [F44GT/GS]
60 dB min (63 dB typical) for Narrow [F44GT/GS]
• Spurious response : 70 dB
• Intermodulation rejection ratio : 70 dB min (74 dB typical) except [F44GT/GS]
65 dB min (67 dB typical) [F44GT/GS]
• Audio output power : 0.5 W typical at 5% distortion with an 8
Ω
load
• Output impedance (Audio) : 8
Ω
Specifi cations are measured in accordance with EIA-152-C/204D, TIA-603 or EN 300 086.
All stated specifi cations are subject to change without notice or obligation.