Antenna height should include total height above customers.

Downtilt angle is the planned antenna downtilt or the antennas electronic downtilt according to manufacturers data sheet.

Vertical beamwidth needs to be located in the antenna manufacturers data sheet.

Antenna beamwidth is at what point the antennas maximum gain has dropped 3dB at this point the gain dropped on many antennas can drop of drastically. Exactly how much the drop off is can be found in the antenna manufacturers antenna pattern.

So based on this we are mainly interested in the distance from the tower where the signal have dropped of -3dB from maximum gain.

Sweet spot is the location where the center beam of the antenna will hit the ground and this is the location where the majority of customers should be close to. This is not possible in all cases.

In many cases customers can be between tower and the inner -3dB radius and still be able to have good enough signal but this might not be the case with all antennas and distances a stronger antenna at the client side might in that case help.

- Tool provided by WISP-Router, Inc.
- Written by Eje Gustafsson, Chief Technology Officer.