Kenwood Analogue Mobile Two Way Radio 25W UHF TM481A

Frequency Range: UHF 400-470mhz
Storage Channel: 99
Dimensions: 160 mm X 43 mm X 137 mm
Weight : 1.13 kg


1. Features

Whatever the mission, wherever you go, KENWOOD’s TM-281A is a radio you can count on. This compact transceiver delivers powerful mobile performance and such advanced features as multiple scan functions and memory names. High-quality audio is assured by the large speaker. Naturally, MIL-STD compliant toughness ensures rugged reliability. And operating ease is second to none: illuminated keys and a large LCD with adjustable backlighting make for user-friendly operation day or night.

Rugged, Compact Construction

The TM-281A is tough enough for off-road assignments: it meets the strict U.S. Department of Defense MIL-STD 810 C, D, E, F & G environmental standards for vibration and shock. Installation is easy due to its compact dimensions: 160 (W) x 43 (H) x 126 (D)* mm .

High Power Output

Even with its compact size, the TM-281A delivers up to 65 watts – the sort of RF power you want in the wilderness – with a choice of High/Low output. A hand microphone is also supplied as standard.

Alphanumeric LCD And Illuminated Keypad

The vivid amber LCD display comes with a 32-step brightness control to suit any ambient light conditions. It displays up to 6 large alphanumeric characters. The front panel keypads are also illuminated for ease of use.

Impressive Front Speaker

The large oval speaker (58 x 35 mm) mounted in the front ensures every message is heard loud and clear.

Memory Name Function

Up to 100 memory channels can be identified with a maximum of 6 alphanumeric characters each. (200 channels are available if the memory name function is not used.)

200 Memory Channels Plus 1 Call-Channel

Each of the memory channels can be used to store transmit and receive frequencies independently. Additionally, memory data can be edited and stored on a computer*.

*Requires USB Programming Cable KPG-46U, and Memory Control Software MCP-1A (Ver.3.0 or later); consult your local dealer for details on purchasing these options.

Multiple Scan Functions

Included as standard are VFO scan, memory scan, call scan, Tone/CTCSS scan and DCS scan – with TO (Time-operated), CO (carrier-operated) and seek scan resume modes. Also priority scan is available to check the Priority channel every 3 seconds.


The built-in CTCSS and DCS encoder/decoder covers 42 CTCSS sub-tone frequencies and 104 DCS sub-tone frequencies.

Other Functions

- Power-on Message

- Wide/Narrow Deviation Selection (per channel)

- 1750 Hz Tone Burst

- Automatic Simplex Checker

- Reverse Function

- Auto Repeater Offset

- Beep On/Off

- Auto Power Off

- Time-Out Timer

- Channel Display Mode

- Busy Channel Lockout

- Memory Channel Lockout

- MR-shift

- Direct Frequency Entry

- Key Lock

2. Specifications


Frequency Range


136 - 174 MHz


400-470 MHz


F3E (FM)

Power Requirement

13.8 V DC ±15 %, negative ground

Curent Drain


Less than 14 A (High), less than 8 A (Low)


Less than 1 A

Operation Temperature Range

-20 °C ~ +60 °C

Antenna Impedance

50 Ω

Microphone Impedance

600 Ω

Frequency Tolerance

±2.5 ppm (-20 °C ~ +60 °C)

Dimensions (W x H x D),
(Projections included)

160 x 43 x 126 mm
161 x 43 x 170.5 mm


1.13 kg


RF Power Output Hi / Lo

65 W / 25 W


Variable reactance modulation

Maximum Frequency Deviation

Wide: ±5 kHz, Narrow: ±2.5 kHz

Modulation Distortion

Less than 3 % (300 Hz - 3 kHz)



Double super heterodyne


1st IF

49.95 MHz

2nd IF

450 kHz

Sensitivity (12 dB SINAD)

Less than 0.18 μV
(Narrow: less than 0.22 μV)

Squelch Sensitivity

Less than 0.1 μV


-6 dB

More than 12 kHz (Narrow: more than 10 kHz)

-60 dB

Less than 30 kHz (Narrow: less than 24 kHz)

Audio Output Power

More than 2 W (5 % distortion)

3. Shipping

4. Payment Terms

EEC. accept online payment method--Paypal, which takes data encryption technology to make Paypal pay safe enough, so customers no need to worry about the private infomation betraied. And Paypal is convenient for customers and sellers to trade. Seller could send Invoice first to customer for making payment. To avoid customers do not know how to make payment.

Offline payment also be accepted -- Telegraphic Transfer (TT), Western Union, MoenyGram which is convenient, reasonable, simple and Global.