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Kenwood TM-231A
Specifications

Return to TM-231A

Discontinued Amateur Mobile Transceivers 

Kenwood logo TM-231A Specifications



GENERAL
Antenna Impedance 50 ohms
Current Drain Receive Less than 600 mA
Current Drain Transmit Less than 11 A
Dimensions (W x H x D) 5.51 x 6.3 x 1.57 in. (140 x 40 x 160 mm)
Frequency Range TX: 144 - 148 MHz
RX: 138 - 174 MHz
Ground Negative
Microphone Impedance 500-600 ohms
Mode F3E (FM), (RX only: 138 - 174 MHz)
Operating Temperature Range -20°C - 60°C
Power Requirement 13.8V DC (±15%)
Weight (approx.) 2.65 lbs. (1.2 kg)
RECEIVER
Audio Output Power More than 2W (8 ohms, 5% distortion)
Circuitry Double conversion superheterodyne
Intermediate Frequency 1st IF 10.7 MHz
Intermediate Frequency 2nd IF 455 kHz
Selectivity -6 dB More than 12 kHz
Selectivity -60 dB Less than 24 kHz
Sensitivity (12dB SINAD) Less than 0.16µV
Squelch Sensitivity Less than 0.10µV
TRANSMITTER
Frequency Tolerance Within ±10 ppm
Maximum Frequency Deviation ±5 kHz
Modulation Reactance modulation
Modulation Distortion Less than 3%
RF Output Power HI 50 W
RF Output Power LO 5 W
RF Output Power MID 10 W
Spurious Radiation Less than -60 dB
  Specifications may be changed without notice.

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