What is the Received Field Intensity Calculator? 

Received Field Intensity Calculator is an online tool that helps to calculate Received Field Intensity when the user enters the value of signal strength (dBm), antenna factor (dB/m), cable loss (dB), and pre-amplifier gain (dB). This calculator uses the following formula, and the calculation is based on the system impedance of Z= 50 ohms and the far-field measurement. 

Where, 

dBm - Signal strength (dBm) 

AF - Antenna factor (dB/m) 

CL- cable loss (dB) 

G - Pre-amplifier gain (dB). 

Field intensity calculation is necessary when: 

• Estimating electromagnetic interference (EMI) effect.  
• Assessing potential radiation hazards (personnel safety and RF exposure). 
• Measuring or verifying specifications. 

 The Received Field Intensity Calculator accurately determines the field intensity in dBµV/m, aiding in EMI analysis, safety assessments, and compliance verification.