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cisco aironet 1510 AG

sarahr202
Contributor
Contributor

Hi everybody.

I was reading about cisco aironet 1510 AG and found it has two N series connector for antenna.

Cisco Aironet 1510AG

Expansion / Connectivity
Interfaces1 x network / power - Ethernet 10Base-T/100Base-TX ¦ 2 x antenna - N-Series connector

1)  we have two N series connector for antenna  why do we need two antenna?

thanks and have a great weekend.

1 Accepted Solution

Accepted Solutions

Amjad Abdullah
Engager
Engager

Hi,

Two Antennas are used for diversity. Because there are too many factors that may affect the RF signal (Refraction, reflection, etc), the signal will follow different pathes to reach the destination (called multipath). Having two antennas to send/receive will make the receiver hear two signals (or more). If one of the signals is malformed then error correction will be better this way. This will make it faster than requesting the re-transmit again from the sources.

802.11n access poins usually have 3 Antennas for each radios because they use MIMO.

Also, this link will give you better information about Diversity and Multipath distortion:

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtm

HTH

Amjad

Rating useful replies is more useful than saying "Thank you"

View solution in original post

3 Replies 3

Amjad Abdullah
Engager
Engager

Hi,

Two Antennas are used for diversity. Because there are too many factors that may affect the RF signal (Refraction, reflection, etc), the signal will follow different pathes to reach the destination (called multipath). Having two antennas to send/receive will make the receiver hear two signals (or more). If one of the signals is malformed then error correction will be better this way. This will make it faster than requesting the re-transmit again from the sources.

802.11n access poins usually have 3 Antennas for each radios because they use MIMO.

Also, this link will give you better information about Diversity and Multipath distortion:

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a008019f646.shtm

HTH

Amjad

Rating useful replies is more useful than saying "Thank you"

Thanks Amjad.

Saravanan Lakshmanan
Cisco Employee
Cisco Employee

One for A and other for G radio.

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