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Last modified 2021-02-12

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Icom IC-T81A

A picture of Icom IC-T81A

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: TX: 50-54 / 144-148 / 430-450 / 1240-1300 MHz (USA)
TX: 50-54 / 144-148 / 430-440 / 1240-1300 MHz (Australia)
RX: 50-999 / 1240-1300 MHz
Tuning steps:5 / 10 / 12.5 / 15 / 20 / 25 / 30 / 50 / 100 KHz
Frequency stability:3 ppm @ -10 to +60C (14 to 140F)
Mode:TX: FM
RX: AM / FM / WFM
Channels/memory management: 100 regular
10 scan edge pairs
4 call (1 per band)
Alpha tags
Repeater shift/offset:?
Power supply:4.5-9.6 VDC (Depending on battery pack)
or 4.5-16 VDC external
Current drain/power consumption:RX: 40-220 mA
TX: Max 1.4 A
Antenna impedance/connector:50 ohm / SMA
Dimensions (W*H*D):58*106*29 mm (2.28*4.17*1.14")
Weight:280 g (9.9 oz), with BP-199 and antenna
Other features: CTCSS/PL with tone scan. DTMF. RIT/VXO (23 cm). 1750 Hz tone burst.
Voltage display.




RECEIVER SECTION
Receiver system:Double conversion superheterodyne
1st IF: 69.45 MHz (AM / FM) - 13.35 MHz (WFM)
2nd IF: 450 KHz
Sensitivity: AM (10 dB S/N)
50 MHz: 0.56 uV
FM (12 dB SINAD)
50 MHz: 0.18 uV
144 MHz: 0.18 uV
430(440) MHz: 0.18 uV
1.2 GHz: 0.25 uV
WFM (12 dB SINAD)
91.5 MHz: 2 uV
Selectivity:15 KHz (-9 dB), 30 KHz (-60 dB)
Image rejection:6 m/2 m: 60 dB
70 cm: 50 dB
23 cm: 38 dB
AF output power/speaker:250 mW at 10% distortion / 8 ohm
External speaker connector:3.5 mm




TRANSMITTER SECTION
RF output power:

High
@ 13.5V
High
@ 9.6V
High
@ 6V
High
@ 4.8V
Low
6 m:5 W4.5 W2 W1.2 W500 mW
2 m:5 W4.5 W2 W1.2 W500 mW
70 cm:5 W4.5 W2 W1.2 W500 mW
23 cm:1 W1 W1 W1 W100 mW
Modulation system:Variable reactance
FM deviation:5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:2 Kohm / 3-pin (2.5 mm)
Microphone input sensitivity:? mV




MISCELLANEOUS
Manufactured:Japan, 1999-200x (Discontinued)
Additional info:
Related documents: User manual (1.1 MB)
Service manual (2.4 MB)
Modifications and fixes:
Reviews:
Options/Accessories:
AD-87
AD-88
BC-110A
BC-110C
BC-110D
BC-110V
BC-119
BP-197
BP-198
BP-199
BP-200
CP-12L
CS-T81
HM-46
HM-54
HM-75A
HS-85
LC-148
OPC-254L
OPC-474
OPC-478
SP-13
Battery pack adapter
Terminal PC board for charger
Wall charger
Wall charger
Wall charger
Wall charger
Desktop charger
Battery case for 3*R6/AA cells
NiMH battery pack. 4.8 V, 700 mAh
NiMH battery pack. 6 V, 700 mAh
NiMH battery pack. 9.6 V, 680 mAh
Cigarette lighter cable with noise filter
Cloning software
Speaker microphone
Speaker microphone
Speaker microphone with remote control
Hands-free headset with PTT and VOX
Carrying case
DC power cable
Cloning cable (Radio-to-radio)
Cloning cable, RS-232C (Radio-to-PC)
Earphone