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2. Transmitter power output - Wikipedia

   en.wikipedia.org/wiki/Transmitter_power_output

   In radio transmission, transmitter power output (TPO) is the actual amount of power (in watts) of radio frequency (RF) energy that a transmitter produces at its output. [1] TPO is a concept related to effective radiated power (ERP), but refers to the power output of a transmitter, without accounting for antenna gain. The ERP for VHF/UHF ...

3. Antenna types - Wikipedia

   en.wikipedia.org/wiki/Antenna_types

   It is not necessary for an antenna to be resonant to transmit well, rather resonance is preferred to easily feed power to it; using a transmatch may make feeding power to an antenna on its nonresonant frequencies possible. [7] [8] [6] Some "doublets" are carefully sized to avoid resonance, in order to make impedance matching less challenging ...

4. Antenna (radio) - Wikipedia

   en.wikipedia.org/wiki/Antenna_(radio)

   For instance, if a radio wave passing a given location has a flux of 1 pW / m 2 (10 −12 Watts per square meter) and an antenna has an effective area of 12 m 2, then the antenna would deliver 12 pW of RF power to the receiver (30 microvolts RMS at 75 ohms). Since the receiving antenna is not equally sensitive to signals received from all ...

5. Effective radiated power - Wikipedia

   en.wikipedia.org/wiki/Effective_radiated_power

   Effective isotropic radiated power is the hypothetical power that would have to be radiated by an isotropic antenna to give the same ("equivalent") signal strength as the actual source antenna in the direction of the antenna's strongest beam. The difference between EIRP and ERP is that ERP compares the actual antenna to a half-wave dipole ...

6. Nominal power (radio broadcasting) - Wikipedia

   en.wikipedia.org/wiki/Nominal_power_(radio...

   In both cases, nominal power excludes losses in transmission lines between the tower or phasor and the transmitter; however, it includes losses in a resistor network used to decrease the efficiency of the antenna system. [2] Nominal power is ultimately a historical artifact of the regulatory regime employed by the FCC prior to the 1980s.

7. Antenna feed - Wikipedia

   en.wikipedia.org/wiki/Antenna_feed

   In a radio antenna, the feed line (feedline), or feeder, is the cable or other transmission line that connects the antenna with the radio transmitter or receiver.In a transmitting antenna, it feeds the radio frequency (RF) current from the transmitter to the antenna, where the energy in the current is radiated as radio waves.