I say sorry for my ignorance.
Which mikrotik hardware support licensed frequency?

nobody?

You can ask here:

http://www.pojitko.cz 10/11GHZ
or
http://www.wi4net.it 26GHZ may be others frequencies

You can ask here:

http://www.pojitko.cz 10/11GHZ
or
http://www.wi4net.it 26GHZ may be others frequencies

they need hardware modification?

Yes. Them uses up/down frecuency converter.

To the date, there isn't any mikrotik hardware out of 2,4 and 5Ghz

Hmm weird...I heard it could be done asking a license to mikrotik

Hmm weird...I heard it could be done asking a license to mikrotik

Superchannel license was used a few time ago.

It allows to use non-standard channels, but in the same band.

Now, all routerboards include it. You can use from 4,9 to 6GHz (depending of your wireless chipset)

Regards

6ghz is a licensed frequency? is it allowed only in USA?