Link Budget

Radio and Antenna     Transmit Power Antenna Gain Power  mW OR  dBm  dB(i)  dB Cable Loss     Cable Properties (per 100 ft or m) Cable Length    dB (100 ft) OR  dB (100 m)  feet OR  meters  dB Connector Loss     Frequency in MHz No. of Connectors    MHz.  No.  dB Budget        dB

 

Free Space Path Loss

Frequency Distance   Result  MHz  Km OR  Miles  dB

 

Fresnel Zone

Total Link Obstacle Distance 1st Fresnel Zone Radius  Km OR  Miles  Km OR  Miles  m at  Km  ft at  Miles Frequency   60% No Obstacle Radius  MHz    m  ft   Earth Height (mid-point)      m  ft

 

 

Power Conversion: milliWatts to dBm (and vice versa)

Power in milliWatts to dBm (and vice versa) . Enter the 'Transmit Power' (A or G above) in milliWatts OR the 'Power Ratio' in dBm and click the appropriate 'Calculate' button. 1 Watt = 1000 milliWatts. Transmit Power   Result mW  dBm Power Ratio   Result  dBm  mW