I prefer the beam pattern this way! this comes after ALOT of testing ;)
Top one is polarized different as that was the last way I used it and tested it.. was unhappy with it, it didn't stay up long after I tested it thoroughly! I tried it vertical and horizontal etc etc... :(
And no, the top GRID antenna / Ebay special is as advertised a 24 DBi antenna, and still being sold today!
Here is a link to the commercial grid antenna I use.
http://www.calamp.com/component/content/...Itemid=379
and the band I use it for is 2400-2483 MHz
The pic was just for reference as I was doing my pre-winter maintenance on my antenna farm! The pic does no justice as per size and quality of the two antennas.. showing the differences, as per cheap and commercial grade!
I just propped the Ebay special grid antenna above my parabolic to show the diff....
The pole the antennas are attached to is 2 inch which goes into my rotor box and thus a 2.5 inch mast.
and YES this ebay grid antenna is the same as yours.. its about 2-3 feet wide!
In closing.. if the commercial Parabola is a TRUE 24 dbi.. wonder what the Ebay parabola is then ;)
here is a link to the cheap ebay grid.. u get what you pay for
http://www.ebay.com/itm/WiFi-Grid-24dBi-...2ecb6f04f6