Icom IC-91AD Service Manual

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SECTION 1 SPECIFICATIONS
GENERAL
• Frequency coverange :
• Operating mode
: FM, AM*, WFM*, DV
†
(*RX only)
• Memory channels : 1304 channels
(Incl. 100 scan edges and 4 call ch.)
• Frequency stability : ±2.5 ppm
(–20°C to +60°C; –4°F to 140°F)
• Tuning steps : 5
‡
/6.25
‡
/8.33
‡
/9
‡
/10/12.5/15/20/
25/30/50/100/125 and 200 kHz
• Antenna impedance : 50 Ω (SMA type)
• Power supply : 10.0–16.0 V DC for external DC
power, or specifi ed Icom’s battery
pack
• Digital transmission speed : 4.8 kbps
†
• Voice coding speed : 2.4 kbps
†
• Current drain (at 7.4 V DC) :
TRANSMIT VHF High 2.1 A typ.
Low 0.8 A (approx.)
UHF High 2.2 A typ.
Low 0.8 A (approx.)
RECEIVE Stand-by 170 mA typ.
(dualwatch; FM/DV
†
)
Max. audio 340 mA typ.
(dualwatch; FM/DV
†
)
• Operating temp. range : –20°C to +60°C; –4°F to 140°F
• Dimensions
(projections not included)
: 58.4 (W) × 103 (H) × 34.2 (D) mm
2
9
/32 (W) × 4
1
/16 (H) × 1
11
/32 (D) in
• Weight (approx.)
:
300 g; 10.6 oz
(antenna, BP-217 included)
TRANSMITTER
• Output power (at 7.4 V DC) : 5.0 W (High)
0.5 W (Low; aprrox.)
• Modulation system FM : Variable reactance frequency
modulation
DV
†
GMSK reactance frequency
modulation
• Maximum deviation : ±5.0 kHz (FM wide: approx.)
±2.5 kHz (FM narrow: approx.)
• Spurious emissions : Less than –60 dB
• Ext. mic. connector : 3-conductor 2.5 (d) mm; (
1
/10′′ )/2 kΩ
RECEIVER
• Receiving system :
FM/AM/DV
†
Double-conversion
superheterodyne system
WFM Triple-conversion
superheterodyne system
• Intermediate frequencies :
1st A band
B band
61.65/59.25 MHz (WFM)
46.35 MHz
2nd 450 kHz/13.35 MHz (WFM)
3rd 1.95 MHz (WFM only)
• Sensitivity : (except spurious points)
• Selectivity :
FM (Wide), AM More than 50 dB
FM (Narrow), DV
†
More than 45 dB
WFM More than 300 kHz/–3 dB
Less than 700 kHz/–20 dB
• Spurious image rejection :
VHF More than 60 dB
UHF More than 50 dB
(IF; More than 60 dB)
• Audio output power
(at 7.4 V DC)
: More than 200 mW
(at 10% distortion with an 8 Ω load)
• Ext. speaker connector : 3-conductor 3.5 (d) mm; (
1
/8′′ )/8 Ω
All stated specifi cations are subject to change without notice or obligation.
†
Available for the IC-91AD or when UT-121 is installed into the IC-91A.
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Icom IC-91AD Specifications

General

Brand	Icom
Model	IC-91AD
Category	Transceiver
Language	English