Faster access than browser!
23 relations: AM expanded band, Antenna (radio), Antenna tuner, Band-pass filter, Bandwidth (signal processing), Capacitor, Characteristic impedance, Clipping (signal processing), Dynamic range, Electronics, High-pass filter, Inductor, Low-pass filter, Pi (letter), Preamplifier, Q factor, Radio, Radio frequency, Radio receiver, RF power amplifier, Scanner (radio), Shortwave radio, Wave interference.
AM expanded band
The extended mediumwave broadcast band, commonly known as the expanded band, is a broadcast frequency allocation.
New!!: Preselector and AM expanded band · See more »
Antenna (radio)
In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.
New!!: Preselector and Antenna (radio) · See more »
Antenna tuner
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline.
New!!: Preselector and Antenna tuner · See more »
Band-pass filter
A band-pass filter, also bandpass filter or BPF, is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
New!!: Preselector and Band-pass filter · See more »
Bandwidth (signal processing)
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.
New!!: Preselector and Bandwidth (signal processing) · See more »
Capacitor
A capacitor is a passive two-terminal electrical component that stores potential energy in an electric field.
New!!: Preselector and Capacitor · See more »
Characteristic impedance
The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current of a single wave propagating along the line; that is, a wave travelling in one direction in the absence of reflections in the other direction.
New!!: Preselector and Characteristic impedance · See more »
Clipping (signal processing)
Clipping is a form of distortion that limits a signal once it exceeds a threshold.
New!!: Preselector and Clipping (signal processing) · See more »
Dynamic range
Dynamic range, abbreviated DR, DNR, or DYR is the ratio between the largest and smallest values that a certain quantity can assume.
New!!: Preselector and Dynamic range · See more »
Electronics
Electronics is the discipline dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors.
New!!: Preselector and Electronics · See more »
High-pass filter
A high-pass filter (HPF) is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency.
New!!: Preselector and High-pass filter · See more »
Inductor
An inductor, also called a coil, choke or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.
New!!: Preselector and Inductor · See more »
Low-pass filter
A low-pass filter (LPF) is a filter that passes signals with a frequency lower than a certain cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency.
New!!: Preselector and Low-pass filter · See more »
Pi (letter)
Pi (uppercase Π, lowercase π; πι) is the sixteenth letter of the Greek alphabet, representing the sound.
New!!: Preselector and Pi (letter) · See more »
Preamplifier
A preamplifier (preamp or "pre") is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker.
New!!: Preselector and Preamplifier · See more »
Q factor
In physics and engineering the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is, and characterizes a resonator's bandwidth relative to its centre frequency.
New!!: Preselector and Q factor · See more »
Radio
Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.
New!!: Preselector and Radio · See more »
Radio frequency
Radio frequency (RF) refers to oscillatory change in voltage or current in a circuit, waveguide or transmission line in the range extending from around twenty thousand times per second to around three hundred billion times per second, roughly between the upper limit of audio and the lower limit of infrared.
New!!: Preselector and Radio frequency · See more »
Radio receiver
In radio communications, a radio receiver (receiver or simply radio) is an electronic device that receives radio waves and converts the information carried by them to a usable form.
New!!: Preselector and Radio receiver · See more »
RF power amplifier
A radio frequency power amplifier (RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency signal into a higher power signal.
New!!: Preselector and RF power amplifier · See more »
Scanner (radio)
A scanner (also referred to a police scanner, police scanner radio or radio scanner) is a radio receiver that can automatically tune, or scan, two or more discrete frequencies, stopping when it finds a signal on one of them and then continuing to scan other frequencies when the initial transmission ceases.
New!!: Preselector and Scanner (radio) · See more »
Shortwave radio
Shortwave radio is radio transmission using shortwave radio frequencies.
New!!: Preselector and Shortwave radio · See more »
Wave interference
In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.
New!!: Preselector and Wave interference · See more »
References
[1] https://en.wikipedia.org/wiki/Preselector
