it’s not possible to measure this with a wireless card, but you can use other equipment like mentioned here:
http://forum.mikrotik.com/t/how-to-measure-antenna-gain/34738/1
it’s not possible to measure this with a wireless card, but you can use other equipment like mentioned here:
http://forum.mikrotik.com/t/how-to-measure-antenna-gain/34738/1