WAP Antennae

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Jun 2nd, 2009
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I am implementing 35 AP1231g's around my site. I have purchased 35 5Ghz Radio modules for them - will I need 70 of the ANT 4941 Dipole antennas as well? Are there distinct purposes for each antenna?

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Rob Huffman Tue, 06/02/2009 - 08:11
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Hi Terry,


Each Antenna has a specific use/pattern. If you are adding the 5Ghz modules (A-Radio) then you will want to use an Antenna that supports 5Ghz like the one listed below;


This is the one you listed, which is for b/g 2.4 Ghz;


Cisco Aironet 2.4 Ghz Articulated Dipole Antenna (AIR-ANT4941)


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This document outlines the specifications and description of the 2.2-dBi articulating dipole antenna. This antenna operates in the 2.4- 2.5-GHz band and is designed for use with Cisco Aironet radio products utilizing a reverse-polarity threaded naval connector (RP-TNC).


https://www.cisco.com/en/US/docs/wireless/antenna/installation/guide/4941.html



This one supports 5Ghz;


AIR-ANT5135D-R Omnidirectional


Indoor-only black dipole like omnidirectional antenna for 5 GHz. Used with the 802.11a radio (AIR-RM22A) and the 1200 Series access point.


http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html



Cisco Aironet 3.5-dBi Articulated Dipole Antenna (AIR-ANT5135D-R)


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This document outlines the specifications and describes the Cisco Aironet 3.5-dBi Articulated Dipole Antenna. The antenna operates in the 5-GHz frequency band and is designed for use with Cisco Aironet 5-GHz radio products using a reverse-polarity Neil Councilman connector (RP-TNC).


http://www.cisco.com/en/US/docs/wireless/antenna/installation/guide/ant5135d.html

The chances are pretty good that you don't require 2 of the Ant4941's or 2 or the ANT5135D-R's attached to each AP unless you require "Diversity" mode to overcome Multipath issues.


Hope this helps!

Rob

Leo Laohoo Tue, 06/02/2009 - 15:34
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