Kenwood TM-281A Field Programmable VHF Base Station

Kenwood TM-281A Field Programmable VHF Base Station


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TM-281A Field Programmable VHF Base Radio

Just plug it into any standard household 110 volt AC outlet, plug in your antenna and you are in business!

Pictured with optional desk mic not included

Price includes:

  • Kenwood TM-281A Field Programmable Radio (No Software Required to Program)
  • Samlex Power Supply w/Radio Cabinet
  • MC-59 DTMF Keypad Microphone
  • 10' DC Power Cable
  • Microphone Hanger
  • Necessary Hardware
  • 1 Year Manufacturers Warranty
  • Note: If you need an antenna you will need one that's made for the frequency or range of frequencies that you need to transmit on. Also, you will need a length of coaxial cable terminated with a PL-259 (UHF Male) type connector for the Kenwood TM-281A  Radio. Please visit our antenna tutorial page if you need assistance on choosing the right antenna.
Includes Programmable Keypad Microphone w/ Mic Hanger    
Includes Programmable Keypad Microphone w/ Mic Hanger    

On or off the road, Kenwood's TM-281A is a mobile radio you can always count on. As tough as nails, this MIL-STD 810 C/D/E/F/G compliant transceiver delivers powerful performance, excellent audio clarity, and a host of advanced features. It offers superb operating ease day or night thanks to the large backlit LCD and illuminated keys.

Key Features
65 Watt RF Output
Rugged Construction to MIL-STD 810 C/D/E/F/G  Standards
Alpha-tagged Memories
High-Quality Front Mounted Loudspeaker
Built-In CTCSS/DCS Encoder/Decoder
Replaces previous TM-271A model
General Features
Alphanumeric LCD Display Yes
Antenna Socket SO-239 (UHF Female)
Auto Power Off Yes
Auto Repeater Offset Yes
Automatic Simplex Checker Yes
Beat Shift Function Yes
Busy Channel Lock-out Yes
Calling Channel Function Yes
Channel Display Mode Yes
CTCSS Encoder/Decoder Yes, 42 EIA Tones with Tone Scan function
DCS Encoder/Decoder Yes, 104 Tones with Tone Scan function
Direct Frequency Entry Yes
DTMF Encoder Yes
DTMF Memory Yes, 10 DTMF memories of 16 digits each
High-Quality Front Speaker Yes
Illuminated Front Panel Keys Yes
Key Beep On/Off Yes
Key Lock Yes
Loudspeaker Socket 3.5 mm
Memory Channel Lock-out Yes
Memory Channels 201 Channels
Menu System for individual set-up Yes
Microphone Socket RJ-45
Monitor Function Yes
MR-Shift Yes
Multiple Scan Functions Yes
PC Programmable Memories Yes
Power-On Message Yes
Reverse Repeater Checker Yes
Time-Out Timer Yes
Variable LCD Brightness with Automatic Dimmer Yes
Wide/Narrow Band Deviation Selection Yes
RF Output Power (approx.) - High 65 W
RF Output Power (approx.) - Low 25 W
TX Frequency Coverage - VHF 144 to 148 MHz (136 - 174 MHz optional)
RX Frequency Coverage - VHF 136 - 174 MHz
Transmitter Modulation Variable-Reactance modulation
Transmitter Modulation Distortion Less than 3% (300 Hz to 3 kHz)
Transmitter Maximum Frequency Deviation - Wide ± 5 kHz
Antenna Impedance - 50 Ohm Yes
Audio Output Power More than 2 W (5% Distortion)
Weight 1.13 kg (approx.)
Current Drain - RX Less than 1 A
Current Drain - TX Less than 14 A (Hi-Power), Less than 8 A (Low-Power)
Dimensions 160 mm (W) x 43 mm (H) x 126 mm (D) - excluding projections
Frequency Step Sizes 2.5, 5, 6.25, 10, 12.5, 15, 20, 25, 30, 50 and 100 kHz
Frequency Stability ± 2.5 ppm (-20 °C to +60 °C)
Microphone Impedance 600 Ohms
Modes - F3E FM Yes
Operating Temperature Range -20 °C to +60 °C
Power Requirement - 13.8 V DC ± 15% Yes
Receiver Circuitry Double Super Heterodyne
Receiver Intermediate Frequency - 1st IF 49.95 MHz
Receiver Intermediate Frequency - 2nd IF 450 kHz
Receiver Selectivity - Narrow More than 10 kHz at -6 dB, Less than 24 kHz at -60 dB
Receiver Selectivity - Wide More than 12 kHz at -6 dB, Less than 30 kHz at -60 dB
Receiver Sensitivity - Narrow Less than 0.22 µV at 12 dB SINAD
Receiver Sensitivity - Wide Less than 0.18 µV at 12 dB SINAD
Receiver Squelch Sensitivity Less than 0.1 µV


  • Model: TM-281A + SEC-1223-TK3
  • Manufactured by: Kenwood