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Icom IC-T81A
Specifications

Return to T81A

Discontinued Amateur Handheld Transceivers 

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IC-T81A Specifications

General
  • Frequency coverage:
    • 50 MHz  144 MHz 440 MHz 1.2 GHz W-FM (not guaranteed)
      Receive / Transmit:
      50 - 53.995
      Rx: 118-173.995*1
      Tx: 144-148
      Rx: 400-469.995*2
      Tx: 430-450
      Receive / Transmit:
      1240 - 1300
      Rx: 76 - 107.995
    • *1 Guaranteed 144-148 MHz only; *2 Guaranteed 440-450 MHz only; 
  • Mode: FM, W-FM (Rx only), AM (Rx only)
  • Number of memory channels: 124 (100 regular, 20 scan edges, 4 call)
  • Frequency stability: 3 ppm (-10C to +60C)
  • Useable temperature range:+14F to +140F (-10C to +60C)
  • Power supply : 4.5 to 16 V DC or specified battery pack
  • Current drain (at 13.5 V DC):
    • Tx: maximum power: 1.4 A (0.8 A at 1200 MHz)
    • Rx: rated audio: 220 mA (typical)
    • Power save: 40 mA
    • Standby: 70 mA (90 mA at 1200 MHz)
  • Tuning steps: 5*, 10, 12.5, 15*, 20, 25, 30, 50, 100 kHz (*not available for 1200 MHz band)
  • Antenna connector: SMA (50 ohm)
  • Dimensions (projections not included):
    • 2-9/32(W) x 4-3/16(H) x 1-1/8(D)inches
    • 58(W) x 106(H) x 28.5(D)mm
  • Weight (with antenna):
    • 290g; 10.2 oz (with BP-197)
    • 270g; 9.5 oz (with BP-199)
    • 280g; 9.9 oz (with BP-200)

 

Transmitter
  • Output power (at 13.5 V DC):
    • High: 5.0 Watts (1.0 Watt at 1200 MHz)
    • Low: 0.5 Watts (0.1 Watt at 1200 MHz)
  • Modulation system: variable reactance frequency modulation
  • Max. frequency deviation : 5 kHz
  • Spurious emissions : Less than -60 dB (-50 dB for Europe version at 1200 MHz; -40 dB for others at 1200 MHz)
  • External mic connector : 3-conductor, 2.5(d) mm (1/8 inch)/ 2 K ohm

 

Receiver
  • Receive system: Double conversion superheterodyne
  • Intermediate frequencies:
    • 1st: 69.45 MHz (13.35 MHz: WFM)
    • 2nd: 450 kHz
  • Sensitivity (except spurious points):     
    • FM 50 MHz=0.18 V, 144 MHz=0.18 V, 440 MHz=0.18 V, 1.2 GHz=0.25 V
    • AM 50 MHz=0.56 V
    • WFM 91.5 MHz=2.0 V
  • Squelch sensitivity (threshold):
    • 0.18V (FM; 0.25 V at 1200MHz)
    • 5.6V (WFM)
    • 0.56V (AM)
  • Selectivity (except WFM):
    • More than 15 kHz/-9 dB
    • Less than 30 kHz/-60 dB
  • Spurious and image rejection ratio:
    • 50, 144 MHz: Less than -60 dB
    • 440 MHz: Less than -50 dB
    • 1200 MHz: Less than -50 dB
    • (Except half IF, 2nd image, 50 MHz band IF and WFM)
  • Audio output power (at 13.5 V DC): 250mW typical at 10% distortion/8 load (at 13.5 V DC)
  • Specifications are subject to change without notice or obligation.

 


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