# show ap allowed-channels country-code <Code> ap-type <AP>
Thanks for this command -- very useful!
We have some AP-103Hs and couldn't get them working on a 620 controller running 6.4.1.0 - this command showed an empty list for that model in the GB regulatory domain. The AP booted but remained in AirMonitor mode (because no channels were available).
Upgrading the 620 to 6.4.2.0 gives a full list and and the AP-103H springs into life properly, in regular AP mode. Looking more closely at the 6.4.2.0 release notes, support for this AP in the United Kingdom (= GB) area was only added then, requiring that as a minimum release.
[I also note that 6.4.2.0 adds support for separate updating of the regulatory domain, not requiring new ArubaOS releases.]