How is antenna ERP calculated?

To calculate ERP, Take the transmitter power output, subtract the losses from the duplexers, subtract any measurable feedline loss and add the antenna gain. Example: (2 dBd combined duplexer and feedline loss) + (5 dBd antenna gain)= 3 dBd gain. Use antenna gain in dBd not dBi.

How is antenna field strength calculated?

With the gain of the dipole antenna of 1.625, we get Ka = 23 or 20 · log(23) = 27.2 dB. With this, the electric field strength is 7.42 V/m. In order to get the magnetic field strength, we divide this value by 377 Ω and get 0.0197 A/m or 85.9 dBµA/m.

What is dBuV M?

dBuV/m = decibels (voltage level) referenced to 1 microvolt per meter; used for electric field intensity measurement. dBuV/m/MHz = decibels referenced to 1 microvolt per meter per MHz; used for broadband field intensity measurement.

What is antenna factor dBm?

Antenna Factor (or correction factor) is defined as the ratio of the incident Electromagnetic Field to the output voltage from the antenna and the output connector. Gain (dBi) The ratio of the signal received or transmitted by a given antenna as compared to an isotropic or dipole antenna.

What is dBi and dBm?

dBi (decibels per isotropic dB[isotropic]) is a measure of the forward gain of an antenna: The gain in power emitted by an antenna signal. dBm (decibels per milliwatt): The relative power emitted by an amplifier: Refers to decibels as a relative measure of milliwatts.

What is ERP in antenna?

The effective radiated power (ERP) of an antenna in a specific direction is the power that will need to be supplied to a reference antenna to produce the same power this antenna is producing in this direction.

What is antenna factor dB M?

What is the unit of EMC?

EMC engineers commonly use dB as a unit of noise measurement. Every engineer who uses the dB term must know and remember a few basic facts about dB. It is easy to misunderstand the term without these facts, which are assumed, but not mentioned.