I have 2800 using Using 4 X AIR-ANT2524DW-R and 1570 series AP using 4XAIR-ANT2568 deployed in network I need assistance for external antenna selection should be ABCD with antenna gain times multiple by 0.5 or AB for 2.4ghz and CD for 5GHz or leave it ABCD with dbi multiple by 0.5
Not sure about what you are asking, but I will try and answer, all 4 antenna ports ABCD on AP are dual band, so you can purchase dual band antennas, don't need to purchase 2.4Ghz or 5Ghz only antenna for separate ports.
Thank you for your response dual band antenna already deployed in network my concern is how I can configure antenna parameters on 5GHz and 2.4GHZ I should select all ABCD in both bands calculating antenna gain multiple X 0.5
