topic Re: Tx Power settings in ZD in Access Points - Indoor and Outdoor

Tx Power settings in ZD

rashad_shukurov — Thu, 12 Jul 2018 13:55:29 GMT

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

Re: Tx Power settings in ZD

andrew_margari1 — Thu, 12 Jul 2018 15:48:57 GMT

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?

Re: Tx Power settings in ZD

igor_tunakin — Mon, 23 Jul 2018 06:53:40 GMT

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

Re: Tx Power settings in ZD

rashad_shukurov — Mon, 23 Jul 2018 07:01:16 GMT

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

Re: Tx Power settings in ZD

igor_tunakin — Mon, 23 Jul 2018 07:19:36 GMT

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

Re: Tx Power settings in ZD

andrew_margari1 — Mon, 23 Jul 2018 16:12:10 GMT

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?

Re: Tx Power settings in ZD

abilash_pr — Wed, 25 Jul 2018 07:41:12 GMT

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.

Re: Tx Power settings in ZD

igor_tunakin — Wed, 25 Jul 2018 07:50:26 GMT

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