There's another thing to consider: country regulations which limit EIRP (effective isotropic radiated power, effectively that's amplifier output power plus antenna gain). It can vary for different channels in same band. But it can significantly limit actual transmitted power, limits on 5GHz band are usually stricter but it really depends on country.
And don't forget that 5GHz signal strength drops faster in open air than 2.4GHz signal. Also attenuation through all materials (wood, bricks, concrete) is stronger for 5GHz signal than for 2.4GHz signal.
In practice it's hard to determine correct "Tx power offset" simply by calculating, one has to verify settings using wifi device to see if signal strenghts motivate devices to connect to 5GHz AP where this makes sense.
And don't forget that 5GHz signal strength drops faster in open air than 2.4GHz signal. Also attenuation through all materials (wood, bricks, concrete) is stronger for 5GHz signal than for 2.4GHz signal.
In practice it's hard to determine correct "Tx power offset" simply by calculating, one has to verify settings using wifi device to see if signal strenghts motivate devices to connect to 5GHz AP where this makes sense.
Statistics: Posted by mkx — Sat Dec 23, 2023 9:33 pm