Specifications - Icom IC-T81A Instruction Manual

12

SPECIFICATIONS

GENERAL
• Frequency coverage
Version 50 MHz
Rx: 118–173.995
USA
50–54
Tx: 144–148
Europe
50–52
UK ‡
(Rx only )
50–52 Rx: 118–173.995
Italy
‡
(Rx only ) Tx: 144–148
Rx: 118–173.995
Asia
50–54
Tx: 144–148
Australia
50–54
Taiwan
N/A
1
* Guaranteed 144–148 MHz only; *
430–440 MHz only; * 4 Not guaranteed;
• Operating mode
• No. of memory channels
• Tuning steps
• Frequency stability
• Power supply requirements (negative ground):
• Current drain( at 13.5 V DC):
Rx Power saved
standby
rated audio
Tx max. power
• Antenna connector
• Usable temperature range
• Dimensions
• Weight (approx.)
32
:
144 MHz 430 MHz 1.2 GHz
*1 *2
Rx: 400–469.995
1240–1300
*2
Tx: 430–450
144–146 430–440 1240–1300
*1 Rx: 400–469.995 *3
1240–1300
TX: 430–440
*1
430–440 1240–1300
144–148 430–440 1240–1300
144–146 430–440 1260–1265
2 3
Guaranteed 440–450 MHz only; *
‡ Some versions may be able to transmit.
: FM(F3E), WFM(Rx), AM(Rx)
: 124 (100 regular, 20 program scan
edges and 4 call)
: 5*, 10, 12.5, 15*, 20, 25, 30, 50 and
100 kHz
*Not available for 1200 MHz band.
: ±3 ppm (–10°C to 60°C; 14°F to 140°F)
4.5 to 16 V DC or specified battery
pack/case
40 mA (typ.)
80 mA (typ.; 90 mA: 1200 MHz)
220 mA (typ.)
1.4 A (0.8 A typ.: 1200 MHz)
: SMA (50 Ω)
: –10°C to +60°C; +14°F to +140°F
: 58(W)×106(H)×28.5(D) mm;
9 3 1
2 ⁄ (W)×4 ⁄ (H)×1 ⁄ (D) in
32 16 8
: 300 g; 10.6 oz (w/ant. & BP-197)
280 g; 9.9 oz (w/ant. & BP-199)
310 g; 10.9 oz (w/ant. & BP-200)
TRANSMITTER
(Unit: MHz) • Modulation system
• Output power (at 13.5 V DC)
*4
WFM
76–107.995
MHz)
88–107.995 • Spurious emissions
88–107.995
• Max. frequency deviation
76–107.995
• Ext. microphone connector
88–107.995
76–107.995
RECEIVER
• Receive system
Guaranteed
• Intermediate frequencies
• Sensitivity (except spurious points) :
FM
(at 12 dB SINAD)
WFM
(at 12 dB SINAD; 1 kHz/52.5 kHz deviation)
• Squelch sensitivity
• Spurious and image rejection ration:
50, 144 MHz bands
430(440) MHz band
1200 MHz band
(–50 dB typ. for half IF; except 2nd image, 50 MHz band IF and WFM)
• Audio output power (at 25°C)
: Variable reactance modulation
: High 5 W typ. (except 1200 MHz)
1 W (1200 MHz)
Low 0.5 W typ.
(0.1 W typ. for 1200
: Less than –60 dB
Less than –50 dB (Eur, Italy)
(Less than –40 dB for 1200 MHz)
: ±5 kHz
1
: 3-conductor 2.5(d) mm ( ⁄
: Double conversion
superheterodyne
: 1st 69.45 MHz (FM, AM)
13.35 MHz (WFM)
2nd 450 kHz
50 MHz Less than 0.18 µV
144 MHz Less than 0.18 µV
430(440) MHz Less than 0.18 µV
1200 MHz Less than 0.25 µV
91.5 MHz Less than 1.99 µV
: 0.18 µV (FM)
0.25 µV (1200 MHz)
5.6 µV (WFM)
Less than –60 dB
Less than –50 dB
Less than –38 dB
: 250 mW typ.at 10% distortion with an
8 Ω load
")/ 2 kΩ
8