On Thu, 26 Apr 2018, Pete Heist wrote:

>> On Apr 26, 2018, at 11:44 PM, Sebastian Moeller <moeller0@gmx.de> wrote:
>>
>> Hi Pete,
>>
>>> A textual map is below. I use channels 1, 6 and 11 to segment things.
>>
>> Why? I believe in Europe 1, 5, 9, 13 will allow one more independent channel (see https://en.wikipedia.org/wiki/List_of_WLAN_channels). I believe if your site is remote enough that there is nobody else around you might actually be able to get away with 1, 5, 9, 13 ;)
>
> It’s remote enough. I could try it, but some of the equipment I have from the US isn't happy above 11

If you are running OpenWRT, then you should be able to set the country code and 
now worry where the equipment was from.