Antena ground station with 4 receivers

Help / Getting Started
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ANTENA GROUND STATION WITH 4 RECEIVERS

Hello i am building the following system ground station 2.4 frequency aiming to have a 50-60 kilometers video link. The SYSTEM will be fully motorized and the ground station will have 4 wifi cards connected to the raspberry pi , I have found the following types of antennas, could someone please help ime to choose the correct antennas for the best result?

http://gnswifi.com/antennas_GNS1413_2.4GHz_19dBi_Patch_Antenna.htm

http://gnswifi.com/antennas_GNS1503_2.4GHz_27dBi_Grid_Antenna.htm

http://gnswifi.com/antennas_GNS1416_2.4GHz_15dBi_Yagi_Antenna.htm

http://gnswifi.com/antennas_GNS1426_2.4GHz_17dBi_Beam_Antenna.htm

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Hi
gnswifi.com is not available :frowning:
Any way to get 60km you need at least on ground 20dbi antennas (real gain, not seller declaration - so probably more). I am interested of your results because diversity for 4 the same directional antennas is very rare.
Probably you know this video EZ-wifibroadcast 60KM FPV (MAPLE WIRELESS) - YouTube - 60km record with ground antenna 26dbi (some not commercial Maple Wireless)