Icom IC-F4GS, Руководство по обслуживанию

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SECTION 1 SPECIFICATIONS
‘ ‘ GENERAL
• Frequency coverage : 440.000–470.000 MHz
• Type of emission : 8K50F3E
• Number of channels : 32 ch (16 channels
×
2 banks: 2-BANK version), 16 ch (16 channel version)
• Power supply requirement : 7.2 V DC (negative ground; supplied battery pack)
• Current drain (approx.) : Transmit at High (4.0 W) 1.55 A
at Low (1.0 W) 800 mA
Receive rated audio 250 mA
stand-by 70 mA
• Frequency stability : ±0.00025 %
• Usable temperature range : –30˚C to +60˚C; –22˚F to +140˚F
• Dimensions (projections not included) : 54(W)
×
132(H)
×
35(D) mm; 2
5
⁄
32
(W)
×
5
3
⁄
16
(H)
×
1
3
⁄
8
(D) in.
• Weight (with ant., BP-209) : 355 g; 12.5 oz.
‘ ‘ TRANSMITTER
• RF output power (at 7.2 V DC) : 4 W / 1 W (High / Low)
(with supplied battery pack)
• Modulation system : Variable reactance frequency modulation
• Maximum frequency deviation : ±2.5 kHz
• Spurious emissions : 73 dBc (typical)
• Adjacent channel power : 60 dB (typical)
• Transmitter audio distortion : Less than 3% at 1 kHz, 40% deviation
• Limitting charact of modulator : 70–100% of max. deviation
• Ext. microphone connector : 3-conductor 2.5(d) mm (
1
⁄
10
”)/2.2 k
Ω
‘ ‘
RECEIVER
• Receive system : Double conversion superheterodyne system
• Intermediate frequencies : 1st 46.35 MHz
2nd 450 kHz
• Sensitivity : 0.3 µV at 12 dB SINAD (typical)
• Squelch sensitivity : 0.3 µV at threshold (typical)
• Adjacent channel selectivity : 65 dB (typical)
• Spurious response rejection : 70 dB (typical)
• Intermodulation rejection ratio : 70 dB (typical)
• Hum and noise : 40 dB (typical)
• Audio output power (at 7.2 V DC) : 500 mW typical at 5% distortion with an 8
Ω
load
• Ext. speaker connector : 3-conductor 3.5(d) mm ( 1 ⁄
8
”)/8
Ω
Specifications are measured in accordance with EIA/TIA-603.
All stated specifications are subject to change without notice or obligation.