Calculators


ERP Calculators, Line Loss Calculators and Calculators of All Sorts.


  Effective Radiated Power (ERP)
Calculate Effective Radiated Power (ERP) With Known Transmission Variables:
Transmitter Output Power : W or kW
Frequency : MHz
Transmission Line Type :
Transmission Line Length : Feet
Antenna Gain : dBd (Not dBi)

=

W or kW


 


VSWR / Forward & Reflected Power
Calculate VSWR, Return Loss, etc. from Forward and Reflected Power:
Transmitter Forward Power : Watts
System Reflected Power : Watts


VSWR =
Reflection Coefficient =
Return Loss = dB
Match Efficiency = %
Net Transmission Loss = dB

 

Volts per Meter and Power Density

Calculate Field Strength in a Free Field

 

Power: W Transmit power in watts
Gain: dBi Antenna gain in dBi (2.14=Dipole)
Distance: m Distance from Radiator in meters
Value: V/m
dBuV/m
dBm/m2


*Note: This assumes network and radiator efficiency but should prove to be a good reference calculator nonetheless, especially in the far field.


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Last updated: on June 27, 2013