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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. Antenna amplifier - Wikipedia

   en.wikipedia.org/wiki/Antenna_amplifier

   Antenna amplifier for broadcasting service (here: TV broadcasting and FM souns broadcasting. In electronics, an antenna amplifier (also: aerial amplifier or booster) is a device that amplifies an antenna signal, usually into an output with the same impedance as the input impedance. Typically 75 ohm for coaxial cable and 300 ohm for twin-lead ...

6. Noise temperature - Wikipedia

   en.wikipedia.org/wiki/Noise_temperature

   The antenna noise temperature gives the noise power seen at the output of the antenna. The composite noise temperature of the receiver and transmission line losses represents the noise contribution of the rest of the receiver system. It is calculated as the effective noise that would be present at the antenna input terminals if the receiver ...

7. What 'secret' loudspeaker codes mean at department stores - AOL

   www.aol.com/news/2010-10-13-what-secret...

   What 'secret' loudspeaker codes mean at department stores. Josh Smith. Updated July 14, 2016 at 6:09 PM. Walmart security watches shoppers enter on Black Friday.