This page from Draytek suggests 'yes' - https://www.draytek.co.uk/support/guides/the-5ghz-wireless-bandI'm a bit surprised you only have access to channels 36-48 as that seems rather restricted.In my (albeit limited) experience some devices will not work at the higher channel numbers (>=100) so you may be best sticking with the lower ones.
Yes I did see the Draytek page in my search (plus others like it) which suggest not.....
?? The table on the Draytek page says DFS required for channels 52-64 and confirms such in the text.
Channels 36-48 don't need DFS, everything above should.Most routers I've used only offer DFS on 100+ though.