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Tool
spectrum analysis
eirp calculator
Calculate Effective Isotropic Radiated Power for RF systems and wireless transmitters
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Transmitter Power
Typical: Wi-Fi router (20 dBm), Mobile phone (23 dBm), Base station (40-46 dBm)
Antenna Gain
Cable Loss
Connector Loss
Typical: 0.1-0.5 dB per connector
Power Density Calculation (Optional)
Calculate RF field exposure strength at specified distance
More Antenna Presets
Regulatory Limits Reference
Common EIRP limits for various regions and frequency bands
| Region | Frequency Band | Max EIRP (dBm) | Max EIRP (Watts) | Notes |
|---|---|---|---|---|
| FCC (USA) | 2.4 GHz ISM | 36 dBm | 4.000000 W | Point-to-multipoint, EIRP limit |
| FCC (USA) | 5 GHz U-NII-1 | 30 dBm | 1.000000 W | Indoor use, EIRP limit |
| ETSI (Europe) | 2.4 GHz ISM | 20 dBm | 100.000000 mW | EIRP limit for indoor |
| ETSI (Europe) | 5 GHz | 30 dBm | 1.000000 W | Indoor, TPC+DFS required |
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