Operation Manual

SPECIFICATIONS
12
32
GENERAL
• Frequency coverage : (Unit: MHz)
Version 50 MHz 144 MHz 430 MHz 1.2 GHz WFM
*4
USA 50–54
Rx: 118–173.995
*1
Rx: 400–469.995
*2
1240–1300 76–107.995
Tx: 144–148 Tx: 430–450
*2
Europe 50–52
144–146 430–440 1240–1300 88–107.995
UK (Rx only
‡
)
Italy
50–52 Rx: 118–173.995
*1
Rx: 400–469.995
*3
1240–1300 88–107.995
(Rx only
‡
) Tx: 144–148 TX: 430–440
Asia 50–54
Rx: 118–173.995
*1
430–440 1240–1300 76–107.995
Tx: 144–148
Australia 50–54 144–148 430–440 1240–1300 88–107.995
Taiwan N/A 144–146 430–440 1260–1265 76–107.995
*
1
Guaranteed 144–148 MHz only; *
2
Guaranteed 440–450 MHz only; *
3
Guaranteed
430–440 MHz only; *
4
Not guaranteed;
‡
Some versions may be able to transmit.
• Operating mode : FM(F3E), WFM(Rx), AM(Rx)
• No. of memory channels : 124 (100 regular, 20 program scan
edges and 4 call)
• Tuning steps : 5*, 10, 12.5, 15*, 20, 25, 30, 50 and
100 kHz
*Not available for 1200 MHz band.
• Frequency stability : ±3 ppm (–10°C to 60°C; 14°F to 140°F)
• Power supply requirements (negative ground):
4.5 to 16 V DC or specified battery
pack/case
• Current drain( at 13.5 V DC):
Rx Power saved 40 mA (typ.)
standby 80 mA (typ.; 90 mA: 1200 MHz)
rated audio 220 mA (typ.)
Tx max. power 1.4 A (0.8 A typ.: 1200 MHz)
• Antenna connector : SMA (50 Ω)
• Usable temperature range : –10°C to +60°C; +14°F to +140°F
• Dimensions : 58(W)
×106(H)×28.5(D) mm;
2
9
⁄32(W)×4
3
⁄16(H)×1
1
⁄8(D) in
• Weight (approx.) : 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
• Modulation system : Variable reactance modulation
• Output power (at 13.5 V DC) : High 5 W typ.
(except 1200 MHz)
1 W (1200 MHz)
Low 0.5 W typ. (0.1 W typ. for 1200
MHz)
• Spurious emissions : Less than –60 dB
Less than –50 dB (Eur, Italy)
(Less than –40 dB for 1200 MHz)
• Max. frequency deviation : ±5 kHz
• Ext. microphone connector :
3-conductor 2.5(d) mm (
1
⁄ 8 ″)/ 2 kΩ
RECEIVER
• Receive system : Double conversion
superheterodyne
• Intermediate frequencies : 1st 69.45 MHz (FM, AM)
13.35 MHz (WFM)
2nd 450 kHz
• Sensitivity (except spurious points) :
FM 50 MHz Less than 0.18 µV
(at 12 dB SINAD) 144 MHz Less than 0.18 µV
430(440) MHz Less than 0.18 µV
1200 MHz Less than 0.25 µV
WFM 91.5 MHz Less than 1.99 µV
(at 12 dB SINAD; 1 kHz/52.5 kHz deviation)
• Squelch sensitivity : 0.18 µV (FM)
0.25 µV (1200 MHz)
5.6 µV (WFM)
• Spurious and image rejection ration:
50, 144 MHz bands Less than –60 dB
430(440) MHz band Less than –50 dB
1200 MHz band Less than –38 dB
(–50 dB typ. for half IF; except 2nd image, 50 MHz band IF and WFM)
• Audio output power (at 25°C) : 250 mW typ.at 10% distortion with an
8 Ω load
IC-T81A/E Manual-(1) 01.12.5 6:56 PM Page 32 (1,1)