Kenwood TM-231A Mobile VHF Transceiver

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The Kenwood TM-231A combines high performance receiver and transmitter specifications with easy-to-use features. There are 20 multi-function memory channels plus 1 call channel, and all can be used to store transmit and receive frequencies as well as repeater and signaling data. The TM-231A transmits on 2 meters with three output power levels: 5/10/50 watts. Extended receive allows reception from 138 to 174 MHz. You also get auto-power off, built-in CTCSS encode, time-out timer, auto repeater offset and easy to read LCD. Frequency steps are: 5, 10, 15, 20, 12.5, and 25 kHz.

A European version exists in the form of the Kenwood TM-231E.

Frequency range

RX-range
144-146 MHz
TX-range
144-146 MHz
HAM bands
-
Stability
-
Tuning steps
-
Filters
-

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Receiver

Modulations
FM  
Sensitivity
-
Selectivity
-
Receiver system
-
IF-frequencies
-
Image rejection
-
Audio output
-

Transmitter

Modulations
FM  
RF-Output
High: 50 W, Medium: 10 W, Low: 2 W

Connections

Antenna
SO-239
Impedance
50 Ω

Electrical

Power requirements
11-16V DC
Current drain RX
Max 700 mA
TX
Max 11 A

Physical

Dimensions (w×h×d)
140 × 40 × 160 mm (5.51 × 1.57 × 6.30 in)
Weight
1.20 kg (2.6 lbs)
Form factor
Mobile
Manufactured
Between 1989 and 19xx

Other features

Memories
20 channels in 1 bank(s)
Usage
Amateur / Ham radio operators
Features + options
-
Accessories
-

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Manuals, diagrams and brochures

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