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.

Product details

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)* m * Total depth of 170.5 mm with protrusion

HIGH POWER OUTPUT (65 W)

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.

CTCSS & DCS ENCODER/DECODER

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

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Technical specification

GENERAL

Frequency Range

TX

144 – 148 MHz

RX

136 - 174 MHz

Mode

F3E (FM)

Power Requirement

13.8 V DC ±15 %, negative ground

Curent Drain

Transmit

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

Receive

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

Weight

1.13 kg

TRANSMITTER

RF Power Output Hi / Lo

65 W / 25 W

Modulation

Variable reactance modulation

Maximum Frequency Deviation

Wide: ±5 kHz, Narrow: ±2.5 kHz

Modulation Distortion

Less than 3 % (300 Hz - 3 kHz)

RECEIVER

Circuitry

Double super heterodyne

Intermediate

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

Selectivity

-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)