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1562i .. this is called "omnidirectional"?

I feel like Cisco is straight up lying to me when they call the 1562i internal antenna omnidirectional. 

 

https://www.cisco.com/c/en/us/td/docs/wireless/access_point/1560/installation/guide/1560hig/1560_ch1.html

 

Look at the "omnidirectional" polar plot figures 1-6 to 1-9 and compare with the "directional" antenna of figures 1-10 to 1-13. They look essentially the same to me. 

1560 2pt4 ghz.png

 

 

 

A properly omnidirectional antenna has an almost uniform circular ring around the antenna, such as the 3802i.

 

https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-3/b_cisco_aironet_series_2800_3800_access_point_deployment_guide/b_cisco_aironet_series_2800_3800_access_point_deployment_guide_chapter_01001.html

 

3800 polar.png

Though perhaps they did these polar plots with the 1560 mounted on a metal pole? In that case, the AP chassis is so small that the pole itself is blocking signal radiated from the rear of the AP. The internal antenna AP needs to be bigger and wider to get the signal around the pole.

 

,

 

Apparently for the 1560 outdoor AP to actually be omnidirectional, I am going to have to use the external antenna version, and use a batwing mount that sticks the antennas out about a meter away from the pole to get around it.

 

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VIP Advisor

That sounds about correct yes.
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