No reception from hotbird 13 e horizontal

Hallo guys, I think its better to ask here then spend a lot of time to google it.
Maybe its just a stupid questions, but I can not find the answare for it. That is why I can not receive a reception from hotbird 13 E Horizontal frequency?
what is the reason for I only receive reception from V..

Ps. I use a WS-0906 meter there where i change from V to H

Thanks for advance.