Features, Performance, Value For the Everyday LMR User

Features, Performance, Value for the Everyday LMR User
The F5021 Series is ideal for small-to-mid-sized systems for public safety, large industry to light commercial users. The F5021 Series offers multiple signaling, advanced scanning, improved external channel control capability, and wide frequency coverage packed in a compact body. This rugged mobile easily exceeds your expectations with its reliable performance and communication quality.





128 Memory Channels

128 channels (Max.) separated into 8 memory zones. Memory channels can be identified with the 8-character channel name and selected easily with the up/down buttons.

Front Mounted Speaker

4 watts (typ.) front mounted speaker delivers clear and loud audio. With the speaker facing the operator, audio can be clearly heard without impediment during operation.

6 Programmable Buttons

A pair of up/down and P0–P3 function assignable buttons allow you to customize functions to meet specific needs. An independent volume knob offers simple, convenient operation.

MIL Grade Rugged Construction

The tough aluminum die-cast chassis and polycarbonate front panel have been tested to the MIL standard 810F. With this heavy-duty construction, the IC-F5021 series provides reliable operation over the long term in all manners of rugged environments.

Most Popular Signalings Built-in

Use the built-in 2-Tone, 5-Tone, CTCSS and DTCS capabilities as standard to set up your own talk groups, PTT ID and quiet stand-by when others are talking. The IC-F5021 series has added CTCSS/DTCS high speed decode and 2-Tone decode accuracy.

MDC 1200 Compatible

The following MDC features are available with the built-in MDC signaling.

  • PTT ID (TX/RX)
  • Radio check (RX)
  • Radio stun (RX)
  • Radio revive (RX)
  • Emergency TX/RX (No ACK)
  • 5 alias table (Max.)

Multiple 2-Tone, Multiple 5-Tone

Up to ten 2-Tone and eight 5-Tone codes can be decoded on a channel. When a matched tone is received, the following items are programmable for each code.

  • Beep sound
  • Answer back
  • Scan
  • Bell icon
  • Radio stun/kill/revive

Radio Kill, Stun and Revive

The radio kill/stun functions disable a lost or stolen radio over the air, eliminating security threats from undesired listeners. When the stun command is received, all functions will be temporary locked out until the revive command is received or the unlock password is entered.

Lone Worker Function

When the radio is not operated for a preset period, the radio sounds a beep and requires you to push any button. If the radio is still not operated for a specified wait period, an emergency signal automatically transmits and informs co-workers that something may have happened to the individual worker.

Mode Dependent Scan

In the mode dependent setting, the scanning setting is dependent on the operating channel. When you change the operating channel, the scanning list automatically changes to the list set for that channel. It is convenient when you move to a different operating area and change operating channel, you don’t have to change the scanning setting.

Tx Channel Setting and Talk Back Function

The Tx channel setting allows you to program a transmission channel while scanning. Start channel, last detected channel, priority and preprogrammed channel are selectable. Prior to the Tx channel setting, the talk back function allows you to talk on the last detected channel, while scanning resumes after a preset time. The user can easily make a quick response with this function.

Wide Frequency Coverage

The IC-F5021 series covers a wide frequency range in one version (VHF 136– 174MHz, UHF 400–470 or 450–512MHz).

Optional Unit

The IC-F5021 series has a 40-pin option slot for adding an optional unit.

External Memory Channel Control with Optional ACC Cable

With the optional OPC-1939 D-SUB 15- pin ACC cable, the IC-F5021 series can be programmed to control an operating channel from an external device (up to 16 preprogrammed channels). The ACC connector also provides an ignition sensing function, external PTT, PC command, horn honk, audio output and modulated signal input depending on programming.

Other Features

  • Embedded ESN
  • ±2.5ppm frequency stability
  • Microphone hanger action programmable
  • Optional DTMF microphone (HM-152T)
  • 8 DTMF autodial memories
  • BIIS 1200 PTT ID transmission
  • Power-on password function
  • Nuisance delete function
  • Time-out-timer, Lock-out penalty timer and more


IC-F5021 IC-F6021
Frequency coverage

136-174 MHz

400–470 MHz
450–512 MHz

Number of channels

Max. 128 Ch/ 8 zones

Channel spacing

12.5 kHz, 15 kHz

Type of emission


Current drain

14.0 A

Rx Stand-by

300 mA

Max. audio

1.2 A

(projections not included; W×H×D)

150×40×167.5 mm;
5.91×1.57×6.59 in


1.1 kg; 2.4 lb


IC-F5021 IC-F6021
RF output power

50 W

45 W

Spurious emissions

70 dB (typ.)

Frequency stability

±2.5 ppm

Audio harmonic distortion

3% typical
40% deviation

FM Hum and Noise

40 dB typ. 


IC-F5021 IC-F6021
Sensitivity at 12dB SINAD

0.25 μV (typ.)

Adjacent channel selectivity

65 dB (typ.)

Spurious response rejection

80 dB (typ.)

Intermodulation rejection

75 dB (typ.)

AF output power
(at 5% distortion with an 4 Ω load)

4 W (typ.)

Function Comparison and Internal Unit Options

IC-F5021 IC-F6021
Number of option slots 1
CTCSS/ DTCS encoder Available
decoder Available
2-Tone encoder Available
decoder Available
5-Tone encoder Available
decoder Available
DTMF autodial Available
DTMF decoder -
Voice Scrambler Inversion -
APCO P25 digital -
AES encryption -
DES encryption -
IDAS digital -
MPT 1327 -
MDC 1200 Available (Limited functions)
LTR™ trunking -
PassPort -

Applicable U.S. Military Specifications

Icom makes rugged products that have been tested to and passed the following MIL-STD requirements and strict environmental standards.

MIL-810 G
Method Procedure
Low Pressure Storage


Low Pressure Operation


High Temperature Storage


High Temperature Operation


Low Temperature Storage


Low Temperature Operation


Temperature Shock


Solar Radiation


Humidity Induced


Settling Dust




Shock Functional


Shock Transit Drop



Also meets equivalent MIL STD 810 -C, -D and -E.
All stated specifications are subject to change without notice or obligation.

Supplied Accessories

  • Microphone, HM-152
  • Microphone hanger and its cable
  • Mounting bracket kit
  • DC power cable
  • Function name sticker

Catalogs / Brochures

Brochures Name Size
IC-F5020/IC-F6020 Series 1.16MB
Professional Radios 12.11MB
IDAS™ Solutions 2.43MB
MDC1200 767KB

Instruction Manual / Guides

Name Model Name Note
Instruction Manual IC-F5020 series, IC-F6020 series
Instructions IC-F5020 series, IC-F6020 series