[Yaesu] VX-150 2M HT -- What;s the plug for ?

[A10382]

The VX-150 (2M 5w HT) has a connector plug under the label in the battery
compartment.
What is this connector for ?
        Service monitor / test connection ?
        Configuration / Radio 'personality' ?

Is it of any use for the user ?

===
73, Frank

 ._._.




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