I am getting severe range problems with my 3dbi antenna and I am using XBEE-PRO-S2B RF module. So I switched to 9dbi antenna assumming that the range will get enhanced. But I din't receive any positive result, the problem is still same. Therefore, I checked the connection between the internal centre point and outer circumference of U.FL male connector which is soldered on Xbee module and it is showing short.
Then I checked the same with my SMA antenna which is female and it is showing open. Now I am not able to understand whether this kind of internal connection is proper or not and my assumption on this that I am getting range problem is due to this internal connections if they are not proper.
Kindly suggest on this and do the needful to explain the connection part.