Kenwood TM-331A Mobile VHF Transceiver

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The Kenwood TM-331A covers the 220 MHz (1.25 meters) band. This model is similar to the Kenwood TM-231A but covers 220 MHz instead of 2 meters. The TM-331A delivers 25, 10 or 5 watts transmitting from 220 to 225 MHz. Receive coverage is 215 to 230 MHz.

Frequency range

RX-range
215-230 MHz
TX-range
220-225 MHz
HAM bands
1.25m 
Stability
less than 10 p.p.m.
Tuning steps
-
Filters
-

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Receiver

Modulations
FM  
Sensitivity
< 0.16 µV (12 dB SINAD)
Selectivity
< 12 kHz (-6 dB)
< 24 kHz (-60 dB)
Receiver system
Double conversion superheterodyne
IF-frequencies
10.7 MHz / 455 kHz
Image rejection
-
Audio output
2 W

Transmitter

Modulations
FM  
RF-Output
High: 25 W, Medium: 10 W, Low: 5 W

Connections

Antenna
SO-239
Impedance
50 Ω

Electrical

Power requirements
11-16V DC
Current drain RX
Max 600 mA
TX
Max 6.5 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
-

Manuals, diagrams and brochures

Kenwood TM-231 / TM-331 / TM-431 / TM-531 Manual

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