Done, Information/question moved toMore details Huawei sticks and details on use of external antennas
More details Huawei sticks and details on use of external antennas 1 - 3G modem wiki
Bought a Tschibo since at my location I can only hope to get Edge coverage with an external antenna. However it may also prove usefull in the evening if the hotels charges >10 €/day This is the reason why I am trying to get the information to built if necessary external antennas.
PS.: Tschibo offers with the stick I bought today for 49.95 @ now only 3 free days flatrate.