Do you multiply antenna gain on routers with 3 antennas?

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tplinkuser123
DD-WRT Novice


Joined: 02 Apr 2014
Posts: 2
PostPosted: Wed Apr 02, 2014 18:59    Post subject: Do you multiply antenna gain on routers with 3 antennas? Reply with quote
Hi

I have a TP-Link TL-WR1043ND router it has 3 omni-directional antennas. They have some antenna gain.

DD-WRT defaults to 0 but I want to take advantage of it since the router *does* have it, I believe.

If I'm right the antenna gain (with the stock antenna) is 3 dBi.

My question is, since this router has not one but THREE antennas, do you need to use 9 dBi instead? Does this thing get multiplied by the number of antennas? Or is it the same? (is this an overall number)


Thanks
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tatsuya46
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Joined: 03 Jan 2010
Posts: 7568
Location: YWG, Canada
PostPosted: Wed Apr 02, 2014 19:05    Post subject: Reply with quote
if they are 3dBi antennas you use 3 regardless if theres 5 antennas or 1, or you stick with using 0 dBi
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