RFEIRP and ERP Calculator: Formulas and Calculations
radio frequency
eirp
erp
antenna gain
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This page explains EIRP (Effective Isotropic Radiated Power) and ERP (Effective Radiated Power), providing calculators and their corresponding formulas.
EIRP Calculator
Use the calculator to determine the EIRP value.
Example (EIRP calculation):
- Transmit power in dBm = +20dBm
- Isotropic Antenna Gain, dBi = +10 dBi
- Cable Loss in dB = 5dB
EIRP in dBm = +20 - 5 + 10 = 25 dBm
EIRP Formula
The following formula is used in the EIRP calculator above:
EIRP = TxP - L + Gt
Where:
- TxP = Transmitter Power (dBm)
- L = Losses (dB)
- Gt = Antenna Gain (dBi)
ERP Calculator
The calculator helps you calculate the ERP value.
Example (ERP calculation):
- Transmit power in dBm = +20dBm
- Antenna Gain, dBd = +7.85 dBd
- Cable Loss in dB = 5dB
ERP in dBm = +20 - 5 + 7.85 = 22.85 dBm
ERP Formula
The following ERP formula is utilized by the ERP calculator.
ERP = TxP - L + Gt
Where:
- TxP = Transmitter Power (dBm)
- L = Losses (dB)
- Gt = Antenna Gain (dBd)
import EIRPCalculator from ”./elements/EIRPCalculator.astro”;
import ERP_Calculator from ”./elements/ERP_Calculator.astro”;
