What is "high-frequency"

Usage examples of "high-frequency".

Unlike the standard high-frequency communications, which were vulnerable to foreign direction-finding antennas, the moon-bounce signal was virtually undetectable because it used hard-to-intercept directional microwave signals.

Vint Hill Farms Station eavesdropped on those diplomatic facilities that used their own high-frequency equipment to communicate.

However, Soviet radar installations throughout the country communicated with each other over high-frequency circuits.

Soviets began using microwaves and satellite communications rather than high-frequency signals and buried cables.

Gradually the tunnels were made livable, lighting was installed, SP-600 high-frequency receivers were brought in, guards were assigned, other buildings were built or restored.

It was a simple thing, a coded beat of high-frequency pulses that would turn the bugs in Anne’s head into little factories, flooding her brain with vasoconstrictors, creating millions of tiny aneurisms.

Rebuzzed, replacing a bolt on her thigh, she whistles in a high, shrill gulp of air, smiles wanly, then bursts into a high-frequency palaver, computerese elocution eventually hitting the cue of my own dialect.

On six occasions the walls turned red and smoked acridly from heat projectors but they were from low-grade and not the mounted high-frequency weapons.

PSYCHOLOGICAL FUNCTION Extraperceptual stimuli trigger so-called ancommit-ted zones of the auditory cortex That effect frequently has been measured m the laboratory using high-frequency sounds from whistles and animals It also is recognized that numerous languages from Old Terra.

The sound was attenuated by the distance, the high-frequency pinging of the delphinos dropped off rapidly even in cold water, but the humpbacks were not merely the loudest whales in the ocean, they had the best hearing.

He had no more luck than Thorpe with chemical analysis or direct mass sensing, but there were a few unusual spikes in the high-frequency energy spectrum.

Several Excise men suffered similar fates and all the time the artillery bombardment continued, the rifle fire increased, the high-frequency whistle blew fit to bust and Mr Mirkin clutching his head in agony took an unwise step forward, fell and lay on an extremely large loudspeaker which was resonating at an extremely low frequency.

The matter of the goggles which he had reached for repeatedly had upset his superstitious soul, and the display of high-frequency electricity had finished the demoralization.

It worked like an induction furnace, high-frequency current cooking anything placed between the two coils.

The sanctuary gave us some money to find out if the high-frequency noise from Jet Skis and parasail boats affected the behavior of the whales.