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Cochrane had had to put up his own money to have the nearside lunar observatory put a low-power telescope to watch the rocket's flight. In theory, this distress-rocket should make a twenty-mile streak of relatively long-burning red sparks. A tiny auto-beacon in its nose was set to send microwave signals at ten-second intervals. On the face of it, it had looked like a rather futile performance.

Anyway, I approached from behind the barn and had to take cover when two men went by. They had rifles. They headed down the peninsula toward the cove. I scouted around, but no other guards were in sight, so I started with the barn." Steve paused. "That is quite a barn. No hay, no oats, no horses. But it has the loveliest dish antenna in it you've ever seen." "A microwave dish?" Rick gasped.

Over-the-horizon HF radars use the ionosphere as a kind of mirror to "see" around the curvature of the earth. They have a variety of uses, both military and civilian. And they have the advantage over line-of-sight microwave radars of being able to cover enormous areas with much less power and at a fraction of the cost of the latter.

"Watch for the microwave signals," said Jones' voice in Cochrane's headphones. The voice from the observatory squeaked suddenly. This was not one of the highly-placed astronomers, but part of the mechanical staff who'd been willing to do an unreasonable chore for pay. "Here's the blip! It's crazy! Nothing can go that fast!"

They had seen the ship's take off. It was verified beyond any reasonable question. The microwave beam to Earth was working at capacity to transmit statements from the Moon Observatory, which annoyedly conceded that the Spaceways, Inc., salvaged ship had taken off with an acceleration beyond belief.

As a result of the warnings, the flagship was found to have been somehow equipped, by Mekin, with a tiny, special microwave transmitter which used a frequency not usual on Kandar. It was, in effect, a radio beacon on which enemy missiles could home. Also, the lead ship of a cruiser-squadron had been mysteriously geared to reveal its exact position, course and speed while in space.

I was talking to him by microwave when he was seized by them. I reported that via Sattell of the Survey. You probably know of these reports." A tinny voice said with formal cordiality that he did, indeed. "I've just managed to get out of the park," said Lockley. "I've had a chance to experiment with a stationary terror beam.

They would pick up microwave messages and retransmit them to destinations far around the curve of the planet, or else store them and retransmit them to the other side of the world an hour or two hours later. It would store fuel with which men could presently set out for the stars and out to emptiness for nuclear experiments that must not be made on Earth.