Specifications

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plete testing process
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This Screw-on connector will convert the aerial connection from bare wires into the common DIN connector required for most head units. 
Ideal if your car's aerial connector has been cut off. 
Converts bare wires to DIN (Male) connection.

Product Dimensions: Lenght 65 x Diameter 9 mm, Plug: (13 x 3.2 mm) 

  1.  A Motorola connector also known as a motorola antenna plug is a common coaxial cable RF connector used primarily in the automotive industry for connecting the coaxial feedline from the antenna to the radio receiver. It is also sometimes used for connecting scanner antennas to scanners. The male plug somewhat resembles an RCA connector in size and shape, but instead of being concentric to the pin, the sleeve is "folded" back over the coax.

    The pin is soldered to the center conductor of the coaxial cable coming from the antenna, and the grounded side forms a 1.5 inch (38 mm) long sleeve around the coax. The sleeve usually contains one or more longitudinal spring surfaces, which provide reliable electrical contact by wiping against the mating female socket.

Typical Motorola plug found on consumer auto accessory antenna coaxial cables. Note the spring section on the top of the shield connector.
Type	RF coaxial connector
General specifications
Diameter	0.365 in (0.93 cm) barrel
Cable	Coaxial