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Updated: May 26, 2025
Thane stepped back into the communications section of the scout and flicked the powerful space set into life. Static from the now almost constant disrupter blasts ripped and crackled across the hum of the set. There was just a chance, he considered, that he could get the relay station at Kadenar. He worked rapidly, setting the frequency, the directional beam, the gain control.
"How in the world do you locate an unauthorized station, anyway?" queried Bob. "In each district in which there is a radio inspector we have what we call directional finders. These consist of a combination of a loop aerial and a compass and a radio receiving set. We have complete maps of the district.
Various companies and government officials have devised or modified systems so that to-day wireless is practically universal and is governed by an international convention to which leading nations of the world subscribe. One of the recent features of wireless telegraphy of interest is the success of various directional devices.
Judging it unwise to pursue the High Seas Fleet without a screening force, and discovering by directional wireless that it was already south of Horn Reef and in the neighborhood of the mine fields, he gave up the idea of renewing the engagement and turned north.
There was only one difficulty; the ship was invisible, all right, but it became a radio sender and could easily be detected by a directional radio. However, if the secret were unknown, it was a very effective method of disappearing. And, since the frequency was so high, a special detector was required to pick it up. "Is that all you need?" asked Fuller.
Then, as clearly as possible without raising his voice above a whisper, he told of the discovery of the tracks and the cave. "... The bombs may or may not be in here, but we are going in to find out. I'll leave my personal transmitter here with the broadcast power turned on, so you can home on its signal. That will give you a directional beacon to find the cave.
A glance located the detector mechanism, a set of short-wave coils and amplifiers, and a brief study made plain to him the principles underlying the directional loop finders and the controls which guided the flying shell along the path of the tracer ray.
The phenomena in a magnetic field show that the stress is of such a sort as to twist into a new directional position the body upon which it acts as exhibited by a magnetic needle, also as indicated by the transverse vibrations of the ether waves, and again by the twist given to plane polarized light when moving through a magnetic field.
Their idea was to build a radiation-detection instrument in an empty wing tank and hang the tank on an F-47. Then when a UFO was reported they would fly a search pattern in the area and try to establish whether or not a certain sector of the sky was more radioactive than other sectors. Also, they proposed to build a highly directional detector for the F- 47 and attempt actually to track a UFO.
At the same time it was realised that there was a definite relation between lateral balance and directional control, and the rudder controls and wing-warping wires were accordingly connected This ended the pioneer gliding experiments of Wilbur and Orville Wright though further glides were made in subsequent years as the following year, 1903, saw the first power-driven machine leave the ground.
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