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  2. Antenna gain-to-noise-temperature - Wikipedia

    en.wikipedia.org/wiki/Antenna_gain-to-noise...

    Antenna gain-to-noise-temperature ( G/T) is a figure of merit in the characterization of antenna performance, where G is the antenna gain in decibels at the receive frequency, and T is the equivalent noise temperature of the receiving system in kelvins. The receiving system noise temperature is the summation of the antenna noise temperature and ...

  3. Tower Mounted Amplifier - Wikipedia

    en.wikipedia.org/wiki/Tower_Mounted_Amplifier

    Tower Mounted Amplifier. A Tower Mounted Amplifier ( TMA ), or Mast Head Amplifier ( MHA ), is a low-noise amplifier (LNA) mounted as close as practical to the antenna in mobile masts or base transceiver stations. A TMA reduces the base transceiver station noise figure (NF) and therefore improves its overall sensitivity; in other words the ...

  4. Noise temperature (antenna) - Wikipedia

    en.wikipedia.org/wiki/Noise_temperature_(antenna)

    Noise temperature (antenna) In radio frequency (RF) applications such as radio, radar and telecommunications, noise temperature of an antenna is a measure of the noise power density contributed by the antenna to the overall RF receiver system. It is defined as "the temperature of a resistor having an available thermal noise power per unit ...

  5. DVB-T2 - Wikipedia

    en.wikipedia.org/wiki/DVB-T2

    Ku band. Ka band. v. t. e. DVB-T2 is an abbreviation for " Digital Video Broadcasting – Second Generation Terrestrial "; it is the extension of the television standard DVB-T, issued by the consortium DVB, devised for the broadcast transmission of digital terrestrial television. DVB has been standardized by ETSI .

  6. Television antenna - Wikipedia

    en.wikipedia.org/wiki/Television_antenna

    A television antenna, also called a television aerial (in British English ), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Terrestrial television is broadcast on frequencies from about 47 to 250 MHz in the very high ...

  7. Low-noise block downconverter - Wikipedia

    en.wikipedia.org/wiki/Low-noise_block_downconverter

    A low-noise block downconverter ( LNB) is the receiving device mounted on satellite dishes used for satellite TV reception, which collects the radio waves from the dish and converts them to a signal which is sent through a cable to the receiver inside the building. Also called a low-noise block, [ 1][ 2] low-noise converter ( LNC ), or even low ...

  8. Repeater - Wikipedia

    en.wikipedia.org/wiki/Repeater

    A radio repeater retransmits a radio signal. In telecommunications, a repeater is an electronic device that receives a signal and retransmits it. Repeaters are used to extend transmissions so that the signal can cover longer distances or be received on the other side of an obstruction. Some types of repeaters broadcast an identical signal, but ...

  9. Orthomode transducer - Wikipedia

    en.wikipedia.org/wiki/Orthomode_transducer

    Antenna side of OMT. An orthomode transducer ( OMT) is a waveguide component that is commonly referred to as a polarisation duplexer. Orthomode is a contraction of orthogonal mode. Orthomode transducers serve either to combine or to separate two orthogonally polarized microwave signal paths. [ 1] One of the paths forms the uplink, which is ...