Auto transmit power

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Currently testing FAP241K with Fortiswitch 148F-FPOE, Currently Auto transmit power is set to 17 to 20 dBm with target dBm at -70. Not using any DFS channel. Poe mode is high.

why is it even with just a single AP, transmit power never goes above 17?

To go higher requires setting it to percentage. 100% can go up to 28 dbm, changing it back to auto and it get stuck at 28 dbm. Any ideas?

Jean-Philippe_P

Staff & Editor

Hello yang121,

Thank you for using the Community Forum. I will seek to get you an answer or help. We will reply to this thread with an update as soon as possible.

Regards,

Jean-Philippe - Fortinet Community Team

mhaneke

Explorer III

Hello @yang121,

Please take into account, that there is difference between E.I.R.P. and TX Power. The TX Power is set to 17 dBm @ 5 GHz in auto mode. Adding the antenna gain of 5.4 dBi results in an E.I.R.P. of 23 dBm which is due to RF domain regulations.

TX Power (TXP): Power at the rf transmitter module (without antenna gain or cable attenuation)

E.I.R.P. Overall power of the rf transmitter's power plus antenna gain minus cable loss

This is not limited to FortiAP and can be observed on APs of other manufacturers as well.

best regards

Martin

best regards