Little Signal Hills | |
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Location of Little Signal Hills in California [1] | |
Highest point | |
Elevation | 413 m (1,355 ft) |
Geography | |
Country | United States |
State | California |
District | Kern County |
Range coordinates | 35°5′34.886″N119°26′32.428″W / 35.09302389°N 119.44234111°W Coordinates: 35°5′34.886″N119°26′32.428″W / 35.09302389°N 119.44234111°W |
Topo map | USGS Maricopa |
The Little Signal Hills are a low mountain range in the Transverse Ranges, in southeastern Kern County, California. [1]
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal. It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. The amount of amplification provided by an amplifier is measured by its gain: the ratio of output voltage, current, or power to input. An amplifier is a circuit that has a power gain greater than one.
Radar is a detection system that uses radio waves to determine the distance (range), angle, or velocity of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwaves domain, a transmitting antenna, a receiving antenna and a receiver and processor to determine properties of the object(s). Radio waves from the transmitter reflect off the object and return to the receiver, giving information about the object's location and speed.
In telecommunications, baseband is the range of frequencies occupied by a signal that has not been modulated to higher frequencies. Baseband signals typically originate from transducers, converting some other variable into an electrical signal. For example, the output of a microphone is a baseband signal that is an analog of the received audio. In conventional analog radio broadcasting the baseband audio signal is used, after processing, to modulate a separate RF carrier signal at a much higher frequency.
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Signal Hill Battery or Signal Battery was an artillery battery in the British Overseas Territory of Gibraltar. The battery was mounted high on the rock. Little remains today as the Gibraltar Cable Car top station was built on the site of the old battery.