Modify Wi-Fi transmit power ?

openhab / openhabian

openHABian - empowering the smart home, for Raspberry Pi and Debian systems

https://community.openhab.org/t/13379

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Modify Wi-Fi transmit power ? #1554

Closed mstormi closed 3 years ago

mstormi commented 3 years ago

Just came across the info that e.g. iwconfig wla0 transmit 30 will set transmit power on a Wi-Fi interfaces incl. RPi's internal.

Seems the default 'auto' option sets it to maximum (31) Shall we add a menu 1X option to allow to limit txpower?

FWIW, the allow maximum (in Germany only?) is 1000mW = 30dBm or rather some less (400mW on 5 GHz, 200 mW on 2.4GHz) see https://wiki.freifunk.net/WLAN-Antennen

ecdye commented 3 years ago

I don't know, I think that leaving it to its default and letting any enterprising users change it by doing it manually is better. I don't know about you but I don't think I want to support that sort of feature when a user can easily set it to the wrong value and screw up their system so it doesn't work the way it should. This seems a little advanced for the average user.

I don't know about any max for the US, I sure there is one but I don't think it is that low.

mstormi commented 3 years ago

Hmm. Yeah, looking after Wi-Fi issues, I was quite enthusiastic to find this in the first place, then again later on it turned out it's using the maximum already so I now agree we can't win anything there all we might get is more issues if someone reduces it.