Radio Telephone Transmitting & Receiving Equipment
Navy Type MAB -  Year 1942

 The model MAB Radio Telephone Transmitting and Receiving Equipment is primarily designed to furnish an ultra compact single frequency radio comunication link between paratroop forces. It is also suitable for reconnaissance or outpost communications. Both radio unit and power supply fit in watertight plactic case. This case can be carried on the operator’s thigh, chest or back, either in a pocket of the uniform or in a canvas carryng case provide with the equipment. Receiver and Transmitter of this equipment are crystal controlled, and can be operated on any one channel in the frequency range of 2.3 mc to 4.6 mc. Voice communication (A3 emission) is the only type of operation provided. The power output of the equipment is approximately 0.2 watt, and satisfactory communications Between units over average terrain can be maintained over a range of approximately one mile. This range will increase somewhat for communication between aircraft and ground units.
 

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Frequency coverage:
2.3 – 4.6 mc Crystal controlled

IF:
455 kc

Tubes:
1x1R5, 1x1S5, 2x1T4, 3x3S4

Dimensions :
height 6 1/4 – width 1 13/16 – Depth 3 9/16

Weight:
1 1/4