06-02-2009 07:40 AM - edited 07-03-2021 05:40 PM
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?
06-02-2009 08:11 AM
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)
--------------------------------------------------------------------------------
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.
Cisco Aironet 3.5-dBi Articulated Dipole Antenna (AIR-ANT5135D-R)
--------------------------------------------------------------------------------
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
06-02-2009 03:34 PM
Cisco Aironet Antennas and Accessories Reference Guide
Cisco Aironet 2.4 GHz and 5 GHz Antennas and Accessories
Hope this helps.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: