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IC-U8S1 - Land Mobile Portable UHF Radio


Quick Specs
Portable UHF Transceiver
RX/TX: 450-470 MHz
Output power: 1.5 W
Modes: FM
Receiver sensitivity: 0.32 µV (FM, 12 dB SINAD)
CTCSS standard
DTMF optional


Detailed Specifications


  • Frequency Coverage:
    450-470 MHz*
    *Ask your Icom dealer for permitted frequency range in your area.
  • Frequency bandwidth: 20 MHz
  • Mode: FM (16K0F3E)
  • Number of channels: Up to 6
  • Channel spacing: 25 kHz
  • Useable battery pack: CM-79 (intrinsically safe)
  • Usable Temperature Range: -30°C to +60°C; -22°F to +140°F
  • Frequency stability: ±0.0005% (-30°C to +60°C)
  • Dimensions (With CM-79): 58(W) x 149(H) x 29(D) mm; 2.3(W) x 5.9(H) x 1.1(D) in
  • Weight (with CM-79): 440 g; 15.5 oz
  • Shock or vibration: Meets or exceeds all EIA RS-316B
  • Programmable CTCSS tone: All EIA standard frequencies
  • Optional DTMF keyboard: 3 x 4 keyboard, 12 standard DTMF tones


  • Output power (with CM-79): 1.5 W
  • Spurious emissions: -60 dB
  • Harmonic emissions: -60 dB
  • FM noise and hum: -43 dB


  • Sensitivity (for 12 dB SINAD): 0.32 µV
  • Squelch sensitivity: 0.32 µV
  • Adjacent channel selectivity: -70 dB
  • Modulation acceptance: ±7 kHz
  • Intermodulation rejection: -60 dB
  • Image rejection: -50 dB
  • Spurious rejection: -60 dB
  • Audio output power: 300 mW with an 8 ohm load


  • FCC designation: AFJ IC-U8
  • DOC designation: Pending type of approval at time of printing

Measurements made in accordance with EIA RS-316B AND RS-204C. All stated specifications are subject to change without notice or obligation.


The IC-U8S1 conforms to intrinsically safe ratings of the FMRC (Factory Mutual Research Corporation). Depending on intrinsically safe type classifications, 2 types, the IC-U8S1 and IC-U8S2, are available.

  • IC-U8S1:
  • Intrinsically safe: Class I, II, III, Division 1, Groups C, D, E, F, G
  • Nonincentive: Class I, Division 2, Groups A, B, C, D
  • Max. temperature range: T4A
  • Connected battery pack: CM-79 only

IC-U8S1 Options

WARNING: The IC-U8S1 DOES NOT meet the required intrinsically safe requirements when the optional UT-46 DTMF ENCODER UNIT is used.

  • CM-79 BATTERY PACK: Voltage: 7.2 V; Capacity: 600 mAh. Intrinsically safe type. Same as supplied with the IC-U8S1.
  • BM-71U/E AC BATTERY CHARGER: Desktop type. Rapidly charges the CM-79 within approx. 60 minutes.
  • FA-450TA FLEXIBLE ANTENNA: Long-type flexible antenna. Ensures you longer distance communications.
  • UT-46 DTMF ENCODER UNIT: Provides repeater control and autopatch ope
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