Tx Power settings in ZD

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  • Updated 4 months ago
Hello guys,
I have several Ruckus ZoneFlex R510 APs. I want to know mW equivalent, if I will set TX power settings to -8dB in ZD for both bands. Thanks in advance
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Rashad Shukurov

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Posted 4 months ago

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Andrew M

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I'm looking for an answer on this for some time.
Will it decrees it from the max radio power output of the model?
Or will it decrease it from the max power output based on the regulatory domain?
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Igor Tunakin

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it is an attenuation from the the max EIRP allowed in your region. (it is specifed it with the Country Code)
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Rashad Shukurov

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Thx for your response

So I'm in Europe and here maximum indoor allowance is 100 mW. So if I not mistaken 100mW in the 2.4GHz equal approx 20 dBm. Should I calculate - 7db from Maximum EIRP, correct or I'm wrong? For ex: 20db - 7db = 13db
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Igor Tunakin

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Yes, if you want to have 13dBm (20mW) EIRP you should set Tx Power Adjustment to -7dBm 
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Andrew M

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and how does that work with max EIRP on difference channels on 5ghz?
If the AP decides to change channel to 100 from 36 then the max EIRP will change also and the cell size will change as well.
Is that correct?
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Igor Tunakin

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There are two separate settings for 2,4 and 5GHz bands. As I know according to standards in Europe the 5GHz indoor Wi-Fi has 23dBm (200mW) EIRP limitation. 
So If you want your 2,4 and 5G cells have the same area you need to configure the 5G attenuation 3dB less as 2,4GHz. becouse of  higher FSPL in 5GHz (approximately 7dB) 
For your example it will be:
13dBm EIRP (for 2,4GHz) + 7dB (FSPL difference) = 19 dBm EIRP for 5 GHz
23dBm (max EIRP) - 19dBm = 4dB attenuation for 5GHz
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abi

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Hi Andrew,

Please open a support ticket with this requirement, as support has access to Shell of the AP they should be able to give you a straight answer not less than in 30 mins.

Regards,
Abilash PR.