RF Link Budget CalculatorThis radio link budget calculator tool lets you quickly compute the Free Space Loss, Received Signal Strength, Fade Margin , Distance and more. You can use it for planning your RF links with our pulsAR Wireless Ethernet Bridges, or with other radios in any frequency band. It includes a Coaxial Cable Loss Calculator with pre-loaded loss parameters for a variety of LMR and Belden coaxial cables.The calculator is a Java applet which should work in your browser. If you are not familiar with all the terms used you can read about the various parameters below the calculator. If you have any comments or suggestions for improving this calculator send us a message. You need to enable Java in your computer to run the RF Link Budget Calculator
Microwave Link Budget Analysis – ParametersOverviewThe calculator tool assumes a generic RF link between two sites. Site 1 is viewed as the transmitter and site 2 as the receiver. At each site you have a radio connected to an antenna through an RF cable. The calculator assumes you have "line of sight" between the two antennas. You can use our Fresnel zone and antenna height calculator to help determine if that is the case.For any set of input values the calculator always computes the Free Space Loss and the Signal Strength at the Receiver. Additionally you choose a third output between the link Distance, Fade Margin , or Transmit Power . This lets you quickly answer the most common questions when designing a radio link: 1. How far can my radio link go while maintaining an acceptable Fade Margin ? 2. What Fade Margin will I get for a radio link of a certain distance? You can change all the input parameters with the up/down "spinner" controls. As you change the input the calculator instantly updates the output values. By seeing the results immediately you can quickly evaluate trade-offs between different parameters. Transmit Power
Transmit power at the radio RF connector specified in dBm. If your
radio specifies the transmit power in mW (milli-Watt) you can convert
to dBm using the equation: |
Model: |
AR-9010E |
AR-9027E |
AR-24010E |
AR-24027E |
AR-24110E |
Maximum Speed (Mbps): |
1.1 |
2.75 |
1.1 |
2.75 |
11.0 |
Rx Sensitivity (dBm): |
-95 |
-92 |
-92 |
-90 |
-86 |