Mr. Specter. You described a radio. Will you tell us a little more fully what radio transmission there was in the motorcade, please?
Mr. Kellerman. Yes, sir. This lead car which Mr. Lawson was in has a portable radio. The President's car is next. This is equipped with a permanent set radio on the same frequency as that gentleman up front. The next car is our Secret Service followup car which has a permanent installation. The Secret Service car, as I say, is equipped with a permanent installation which connects the President's car and the lead car. The next car in back of our Secret Service car was the then Vice President Johnson. The Secret Service agent in that car had a portable radio that he could read all three of us ahead. His car following was a small Secret Service followup car, and they, too, had a portable set, which could read all four.
So we had a net of five on our own frequency. In the police cars they had their own city police frequency radios.
Mr. Specter. How many frequencies were used by your own network?
Mr. Kellerman. One.
Representative Ford. Do you have an alternative frequency, emergency frequency?
Mr. Kellerman. Yes, sir; we do. We have two of them.
Mr. Specter. What automobile came behind the lead automobile?
Mr. Kellerman. The President's car.
Mr. Specter. Describe the occupants of that car, indicating their positions, if you can, please.