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2. Television transmitter - Wikipedia

   en.wikipedia.org/wiki/Television_transmitter

   A television transmitter is a transmitter that is used for terrestrial (over-the-air) television broadcasting.It is an electronic device that radiates radio waves that carry a video signal representing moving images, along with a synchronized audio channel, which is received by television receivers ('televisions' or 'TVs') belonging to a public audience, which display the image on a screen.

3. RF power amplifier - Wikipedia

   en.wikipedia.org/wiki/RF_power_amplifier

   A radio-frequency power amplifier ( RF power amplifier) is a type of electronic amplifier that converts a low-power radio-frequency (RF) signal into a higher-power signal. [ 1] Typically, RF power amplifiers are used in the final stage of a radio transmitter, their output driving the antenna. Design goals often include gain, power output ...

4. Orthogonal frequency-division multiplexing - Wikipedia

   en.wikipedia.org/wiki/Orthogonal_frequency...

   Conceptually, OFDM is a specialized frequency-division multiplexing (FDM) method, with the additional constraint that all subcarrier signals within a communication channel are orthogonal to one another. In OFDM, the subcarrier frequencies are chosen so that the subcarriers are orthogonal to each other, meaning that crosstalk between the sub ...

5. The 7 Best HDTV Antenna Amplifiers of 2023 For a Better Signal

   www.aol.com/lifestyle/best-high-definition-tv...

   Best HDTV Antenna Amplifiers. Best Overall: Channel Master Ultra Mini Antenna Amplifier. Best Value: Antop TV Antenna Amplifier. Most Versatile: The Cimple Co TV Antenna Amplifier. Easiest Setup ...

6. Intermediate frequency - Wikipedia

   en.wikipedia.org/wiki/Intermediate_frequency

   Intermediate frequency. In communications and electronic engineering, an intermediate frequency ( IF) is a frequency to which a carrier wave is shifted as an intermediate step in transmission or reception. [ 1] The intermediate frequency is created by mixing the carrier signal with a local oscillator signal in a process called heterodyning ...

7. Squelch - Wikipedia

   en.wikipedia.org/wiki/Squelch

   Squelch. Look up squelch in Wiktionary, the free dictionary. In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a strong input signal. [ 1] Essentially, squelch is a specialized type of noise gate designed to suppress weak signals.