Need info about Antenna gain settings

[hassan_si]

I could see that antenna gain setting under 802.11b/g ap showing 0 valu. However, the antenna connected to that AP is AIR-1728 which has 5.2dbi. Please let me know if it shows 0 then will I get the Maximum power ? or do we need to change ito some value to get the maximum of the antenna power.

[Leo Laohoo]

However, the antenna connected to that AP is AIR-1728 which has 5.2dbi.

So you need to enter the value of "10".

[hassan_si]

Thanks. Will it make difference if the value is 0 ?

[Stephen Rodriguez]

yes. The value you place in that field tells the WLC how much gain the antenna has, so that it can take it into account for RRM

Sent from Cisco Technical Support iPhone App

[hassan_si]

Thanks.One more clarification i need, if they value is 0 will it affect the users with respect to the signal coverage since the value is not 10.

[Stephen Rodriguez]

Not really, with a value of 0 the WLC assumes a standard 2.2dBi of gain, IIRC.  Putting in the correct value for the antenna gain, allows the WLC to make better power settings.

HTH,

Steve