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VHF / UHF transceiver

Icom IC-F121S / F221S

A high powered, simple to use, low cost unit


  • Powerful 50W (VHF), 45W (UHF) Output
  • Simple Operation with Large Buttons and Volume Knob
  • 4W typ. Front-mounted Speaker
  • 8 Memory Channels with LED Display
  • Interactive LED Lighting and Flexible Hanger Actions
  • Built-in 2-Tone, 5-Tone, CTCSS, DTCS Encoder & Decoder
  • Advanced Multi 2-tone/5-tone Systems (See overleaf for details)
  • Standard DTMF Encoder and Optional DTMF Decoder with ANI Function
  • Programmable Wide/Narrow Channel Spacing for Each Channel
  • 2.5kHz Channel Step (U.S.A. VHF only)

Advanced Multi 2-tone/5-tone systems

  • Programmable actions when a matched tone is received
  • LED lighting ON/OFF/Blink
  • Answer back calls
  • Beep sounds
  • Scan start/stop
  • Auto transmission
  • Stun/Kill functions (prevents use of a lost or stolen radio)
  • External out for horn drive (Optional OPC-617 is required)
  • Ten 2-tone codes or eight 5-tone codes can be decoded on a channel
  • Three call codes are programmable

Other features

MDC PTT ID and MDC emergency call functions (Transmit only)

Hook scan function and Hook scan ON/OFF button are assignable

24-digit DTMF autodial memory

Automatic ID (DTMF code) transmission linked to PTT

Busy lockout and repeater lockout

Power on password

External I/O terminal socket with optional OPC-617

Optional Voice Scrambler, UT-109/UT-110

SimpleTrack AVL/GPS option with plug-in board



Frequency coverage


136 - 174MHz
440 - 490MHz
Number of Channels 8 channels (4 channels × 2 banks)
Channel spacing 12.5/25kHz, 15/30kHz
PLL channel step

2.5, 3.125kHz
5, 6.25kHz
Frequency stability


Operating temp. range -30°C to +60°C
-22°F to +140°F
Power supply voltage 13.6V DC

Current drain (approx.)

Tx 50w (VHF) 14A
45w (UHF) 13A
Tx Max. Audio 1200mA
Standby 300mA
Antenna impedance 50Ω (SO-239)
Dimensions (W×H×D) 150 × 40 × 167.5 mm
529/32 × 19/16 × 619/32 in
Weight 1.1kg; 2.4lb
Output power (at 13.6V DC)

Max. freq. deviation ±5.0/2.5kHz (wide/narrow)
Spurious emissions 70dB typ
Adjacent Ch. power 70/60dB (wide/narrow)
Mic.impedance 600Ω (8-pin modular)
Sensitivity 0.25µV typ. (at 12dB SINAD)
Squelch sensitivity 0.25µV typ.
Adjacent Ch.selectivity 75/65dB typ. (wide/narrow)
Spurious response 75dB
Intermodulation 75dB typ.
Audio output power 4W typ. at 10% distortion with a 4Ω load
Ext. SP connector 2-conductor 3.5 (d) mm (1/8")/4Ω

Applicable U.S. Military Specifications

The IC-F121S/F221S has been tested to and passed the following MIL-STD requirements and strict environmental standards.

Standard MIL 810 C MIL 810 D MIL 810 E MIL 810 F
Method Proc Method Proc Method Proc Method Proc
Low Pressure 500.1 I 500.2 I, II 500.3 I, II 500.4 I, II
High Temp. 501.1 I 501.2 I, II 501.3 I, II 501.4 I, II
Low Temp. 502.1 I 502.2 I, II 502.3 I, II 502.4 I, II
Temp. Shock 503.1 I 503.2 I 503.3 I 503.4 I
Solar Radiation 505.1 I 505.2 I 505.3 I 505.4 I
Rain 506.1 I, II 506.2 I, II 506.3 I, II 506.4 I, II
Humidity 507.1 I, II 507.2 II, III 507.3 II, III 507.4
Salt Fog 509.1 I 509.2 I 509.3 I 509.4Dust 510.1
Dust Blowing 510.1 I 510.2 I 510.3 I 510.4 I
Vibration 514.2 VIII, X 514.3 I 514.4 I 514.5 I
Shock 516.2 I, II, V 516.3 I, IV 516.4 I, IV 516.5 I, IV

Measurements made in accordance with EIA-152C/204D, TIA-603. All stated specifications are subject to change without notice or obligation.

Supplied accessories

  • Hand microphone (HM-152)
  • DC power cable
  • Mounting bracket kit
  • Hanger kit
  • Key assign stickers


IPTEL NETWORK INC.  -  14359 Miramar Parkway # 261  -  Miramar, FL 33027  -  Mobile: 305-793 5864  -  Office:305-823 8860  -  Fax: 754-400 8346