Precisely second picture is from this antenna feed measurement 
)
http://forum.mikrotik.com/t/how-to-measure-antenna-gain/34738/1
In addition this feed some times have problem with water inside. I have this antenna on few links.
Precisely second picture is from this antenna feed measurement )
http://forum.mikrotik.com/t/how-to-measure-antenna-gain/34738/1
In addition this feed some times have problem with water inside. I have this antenna on few links.