Hi Guys/Gals,

I recently found my dad's old base station set up and I'd like some help figuring out if it still works. As you can guess it's a Ranger AR3500 100W. It powers up and the buttons seem to work, but I can't tell if it's transmitting/receiving. This is an early version of the AR3500 because it has the 4-pin mic.

The radio appears to have had some mods done to it. Here are some pics.
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The middle picture you can see a toggle switch on the outside of the radio, there's a grey wire going into the metal box and a purple wire soldered to something. The last photo is under the top cover, the same purple wire seems to have been used for stuff too. I have no idea what all that is for.

I run a President McKinley in my daily driver, that is the only antenna I have access to.

Any and all help/advise is appreciated!!!

Thank you!!!