EARS | Business Radio Products


Price includes 1st class signed for delivery by Royal Mail


PRICE INCLUDES VAT AT 20% £157.50 + VAT £31.50

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The Kenwood TM-281A and 481A tranceivers are reliable compact and simple to use radios that can be set up in a number of ways ranging from a basic single channel radio, through to multiple memories and groups of users. VHF and UHF versions are available and they can work radio to radio, or through a repeater for larger coverage areas. The front facing speaker has bags of loud, clear audio, so handy for installation in vans as well as quieter cars. They also make good radios to use at home or in the office, connected to a 13.8V standard power supply.


TM-281A/TM-481A Specifications



Antenna Impedance 50 ohms

Current Drain Receive Less than 1 A

Current Drain Transmit Less than 14 A

Dimensions (W x H x D) 6.3 x 1.69 x 4.69 in. (160 x 43 x 126 mm)

Weight (approx.) 2.6 lbs. (1.2 kg)

Frequency Range TX/RX: 136 - 174MHZ (TM-281A) or 400-470MHz (TM-481A)

Ground Negative

Microphone Impedance 600 ohms

Frequency Tolerance ± 2.5 PPM -20°C to 60°C

Mode F3E (FM)

Operating Temperature Range -20°C to 60°C

Power Requirement 13.8V DC (±15%)


Audio Output Power More than 2W (8 ohms, 5% distortion)

Circuitry Double conversion superheterodyne

Intermediate Frequency 1st IF 49.95 MHz

Intermediate Frequency 2nd IF 450 kHz

Selectivity -6 dB More than 12 kHz (Narrow 10 kHz)

Selectivity -60 dB Less than 30 kHz (Narrow 24 kHz)

Sensitivity (12dB SINAD) Less than 0.18µV

Squelch Sensitivity Less than 0.10µV


Frequency Tolerance Within ±10 ppm

Maximum Frequency Deviation ±5 kHz

Modulation Reactance modulation

Modulation Distortion Less than 3% (300 Hz ~ 3 kHz)

RF Output Power HI 65 W (TM-281A) 45W (TM-481A)

RF Output Power LO 25 W


Need Support?

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01502 568021     01502 218989

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East Anglian Radio Services

40 Bridge Road

Oulton Broad


NR32 3LR

01502568021 - 07885039092



East Anglian Radio Services.


-- GPS fitted marine mobiles

-- Waterproof hand held with GPS

-- Simple, waterproof hi power hand held

-- vehicle VHF and UHF radios

-- Event Radio Hire

-- Emergency Radios

-- End of line bargains

-- Second hand sales

-- Training and Advice


Community repeater and radio hire available

Short and long term radio hire

Marine, Commercial and Amateur  equipment available

2 and 4 wire intercom interfaces


Tel: 01502 572136

40 Bridge Rd, Oulton Broad  NR32 3LR


Monday-Friday: 9am to 6pm

Saturday: 10am to 1pm

Sunday: Closed

Out of hours by arrangement




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