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it was kinda surprising to learn that WLC expresses tx power as 1,2,3,4,5,6.
anyone knows what is the equivalent of these levels in dBm?
the autonomous 1230 has the tx power levels as max, 100, 50, 30, 20, 10, 5
is the comparison below correct?
wlc <--> 1200
1 <--> max
2 <--> 100
3 <--> 50
4 <--> 30
5 <--> 20
6 <--> 10
7 <--> 5
what is the exact value of the 'max' level?
You've got the right idea with 1 being highest, and power decresing along the way. There's about 3dB difference between each integer, however the actual dB value varies for each setup.
The reason they're not fixed is because the WLC considers the region the network is in (EIRP laws) and antenna gain.
Power Setting 1 = max power (Considering local laws and antenna gain)
Power Setting 2 = Power Setting 1 minus 3dB
Power Setting 3 = Power Setting 1 minus 6dB
Power Setting 4 = Power Setting 1 minus 9dB
and so on...
Good Question. I have fallen foul of this.
So with the following
Controller Radio Output Power
Tx Power Settings 802.11b/g (dBm) 802.11a (dBm)
1 (maximum) 17 17
2 14 14
3 11 11
4 8 8
5 5 5
6 2 2
7 -1 -1
8 - -
I have a couple of question:
How many milliwats is this does this equate to?
Is it 50, 25, 12, 6, 3, 1.5, 0.75 ?
Just used this tool but want to make sure this is correct?
Also, what is power level 8? I dont have this on my controller?
You can use the tool, just make sure what the db is first. 2.4GHz is 20dbi which is 100mW, 5GHz UNI-II and UNI-III is 17dbi which is around 25mw. UNI-I is 11dbi max which is 12.5mW.
So when youare at the max dbi and mw, every drop is half like mentioned above.
Why do you say 2.4Ghz is 20dbi, that is only for certain regions right?
Sorry am i missing sommat here? I got the table from the following url?
Please can you clarify mate?
Many thx as always :)
That is for US (-A). You see under B, the table shows 20dbi. Under G the table shows 17dbi. Figure 5-2 & 5-3 under -A you should be looking at if you are in the US.
Thx for the clarificaion mate.
We are in E band (us limey's) cheers :)