Does wifi signal strength depend on country selection?

Question

Computer networks

I recently read on a toaster that the choice of country when setting up wi-fi affects the transmitter power. Is it true? Where can you read about it?

Answer 1

Yes, it does, I wrote about it . The chip manufacturer himself lays down such restrictions because each country has its own standards.
pastebin.com/5aqEDqST
www.cisco.com/c/en/us/td/docs/wireless/wcs/3-2/con...
But not the fact that I set another country and the signal increased. Manufacturers can also limit this.
Most importantly, in most cases, increasing the power will result in a poor connection. The signal will be reflected and jam itself.

Answer 2

The cis link is no longer open, but the Linux kernel maintains a public database of current restrictions . According to this base, at the moment, the highest limits in Panama (PA):
(2400 - 2483.5 @ 40), (36 dBm / 4000 mW)
(5150 - 5250 @ 80), (36 dBm / 4000 mW), AUTO- BW
(5250 - 5350 @ 80), (30 dBm / 1000 mW), AUTO-BW
(5470 - 5725 @ 160), (30 dBm / 1000 mW)
(5725 - 5850 @ 80), 36 dBm / 4000 mW)
( 57000 - 64000 @ 2160), (43 dBm / 20000 mW)
However, this, of course, does not mean that all devices use this database, or the data entered into it, and by setting the PA code on your Chinese access point you will immediately receive 20 watt output power...

Answer 3

does not affect the power but the number of available channels.
https://en.wikipedia.org/wiki/List_of_WLAN_channels