(at around 20 mins) Mike, when calling the Control Center, says, "Umpire to Shortstop...Umpire to shortstop. Over." The man at the other end responds. "Shortstop this is Umpire. Go ahead." See more
This device is an experimental underwater radio. I was transmitting a voice signal to my friend, Chuck Barron, the inventor of it. He was a member of my underwater flotilla and the Coast Guard Auxiliary. We were making some tests on the tranmitter receiver, hoping to present it to the Navy. I had left Chuck a few hundred feet away. He was going to home in on my signal. It was taking too long. I was beginning to worry. Something was wrong. I didn't have much air left, and that...