Icom IC-91AD - Page 130

124
15 SPECIFICATIONS
D Receiver
• Receive system : Double-conversion superheterodyne (FM/AM)
Triple-conversion superheterodyne (WFM)
• Intermediate frequencies :
1st (A band) 61.65 MHz/59.25 MHz (WFM)
1st (B band) 46.35 MHz
2nd 450 kHz/13.35 MHz (WFM)
3rd 1.95 MHz (WFM)
• Sensitivity(except spurious points) :
AM (1 kHz/30% MOD.; 10 dB S/N)
0.495–4.995 MHz 1.3 µV typ.
5.000–29.995 MHz 0.56 µV typ.
118.000–137.000 MHz 0.5 µV typ.
222.000–246.995 MHz 0.79 µV typ.
247.000–329.995 MHz 1 µV typ.
FM (1 kHz/3.5 kHz Dev.; 12 dB SINAD)
VHF (Amateur band only) 0.14 µV typ.
UHF (Amateur band only) 0.16 µV typ.
1.625–29.995 MHz 0.4 µV typ.
30.000–117.995 MHz 0.25 µV typ.
118.000–173.995 MHz 0.18 µV typ.
174.000–349.995 MHz 0.32 µV typ.
350.000–469.995 MHz 0.22 µV typ.
470.000–599.995 MHz 0.32 µV typ.
600.000–999.990 MHz 0.56 µV typ.
WFM (1 kHz/52.5 kHz Dev.; 12 dB SINAD)
76.000–108.000 MHz 1 µV typ.
175.000–221.995 MHz 1.8 µV typ.
470.000–770.000 MHz 2.5 µV typ.
DV(digital/PN9 4.8kpps; BER 1%)*
5
VHF (Amateur band only) 0.22 µV typ.
UHF (Amateur band only) 0.22 µV typ.
• Selectivity :
FM (Wide), AM More than 50 dB
FM (Narrow), DV*
5
More than 45 dB
WFM More than 300 kHz/–3 dB
Less than 700 kHz/–20 dB
• Spurious and image rejection ratio:
VHF More than 60dB
UHF More than 50dB
(Intermediate freq.; More than 60dB)
• Audio output power : More than 20 mW at 10% distortion
(at 7.4 V DC) with an 8 Ω load
• Ext. speaker connector : 4-conductor 3.5(d) mm; (
1
⁄8˝)8Ω