Icom IC-F121S VHF Radio

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SKU
F121S 51
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A high powered, simple to use, low cost unit

Icom IC- F121S 51 Features

  • 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)

Icom IC- F121S 51 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

Icom IC- F121S 51 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

Specifications

General

Frequency coverage

IC-F121S

 
136 - 174 MHz

Number of Channels

8 channels (4 channels × 2 banks)

Channel spacing

12.5/25 kHz, 15/30 kHz

PLL channel step
VHF
UHF

 
2.5, 3.125 kHz
5, 6.25 kHz

Frequency stability
VHF
UHF

 
±5.0ppm
±2.5ppm

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

 

Transmitter

Output power (at 13.6V DC)
VHF
UHF

 
50W
45W

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)

 

Receiver

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

509.4

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.

More Information
Radio TechnologyAnalog
What's in the BoxRadio, Battery, Belt Clip, Charger
IP RatingIP 54 (Splashing Water)
Channel Capacity128 Channels
Radio DisplayYes
Frequency BandVHF
Output Power50 Watts
Warranty2 Year