So if you're sitting on the floor, keep your legs straight, like a radio antenna.

The sun is much more dangerous than the signal from a radio antenna.

A man in the third group had a radio antenna protruding from his back.

"Over there on the right - about a hundred yards from that radio antenna."

Just a 350-foot-tall radio antenna surrounded by trees, and more traffic.

Three of them had radio antennae mounted on the shoulder.

If the radio antennas were limited to 20 feet, he said, they would not be effective.

They pick up the light wave radiation similar to how a radio antenna works.

But it was enough to roll their radio antenna up into the open air.

This is why many radio antennas (like those on cars) must be very long.