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Raspbian iwconifg produces the following fancy output

On my Raspberry Pi 3 running Raspbian iwconifg produces the following fancy output:

`wlan0 IEEE 802.11bgn ESSID:"ssid of my network"

Mode:Managed Frequency:2.452 GHz Access Point:*************

Bit Rate=72 Mb/s Tx-Power=1484 dBm

Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=36/76 Signal level=-73 dBm

Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

lo no wireless extensions.

eth0 no wireless extensions`

According to the definition of dBm (see such a high tx power is not possible due to energy conservation :-).

well I have the following questions:

  • how to do a setup?
  • i need to set the tx-powerm right?
  • What do I have to do, to see the right tx-power?

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