Listening

[39mto39g]

This guy came to vist us one time and he brought a show-N-tell item. It was a thing that looked kinda like a 81 mortar shell except it had a wire about 2 feet comming from the powder end, The wire was stiff and about 1/8 inch dia. He said they were to listen in on what was in the area, He had a Amarical patch on his sholder, (we helped him anyway) He said we were to take about 15 or twentry of these things and plant them along a trail he had marked on a map.
So we got on a chopper and road off into the sunset, As we were walking back we would dig a hole and plant this thing all except the wire.
I would assume that the wire was an antenna , but where did it transmit to and what would they do with the information from the antenna?
The guy didn't explane a lot about what, who, why ect , tipical Army thing, Just do it.
Im not real sure where we were even, I think around Kontum.

Ron