How to measure antenna gain

rodolfo · January 20, 2010, 12:56pm

Hi all.
I need to test the gain of antennas before installing it.
I have panels, grid and parabolic antennas.

I need to test the effective gain for different tilt and azimuth.

did someone have hints of how to buil a test system ?

Thanks in advance.

aaa · January 20, 2010, 2:36pm

Hi, make anechoic chamber with mast fitted with servo rotation system. Buy some network analyzer. This is not bad
http://www2.rohde-schwarz.com/product/ZVL.html
Make measurement and calculate compare with 1/2 wave dipole.

changeip · January 20, 2010, 5:22pm

how much are those R&S®ZVL6 ?

aaa · January 21, 2010, 7:05am

Something around 20k Eiro

zain · January 23, 2010, 10:31am

how do you use them lol do you power up your anntenna and it tells you if your anntenna is broadcasting on high gain or low gain ? is their a tool to test if a sector is working or not?

aaa · January 28, 2010, 2:16pm

You can check antenna quality measuring for example antenna gain or SWR and compare with producer information. In attachment you can see two same type different company antenna SWR