hardware supporting superchannel in 2.4Ghz?

Do any of the chipsets other than the AR9xxx support superchannel? I’m using an SXT 2 for doing scans on right now but I need something with a tighter beam to help me location directionally.

ie, do an IPQ or QCA chipsets support superchannel?

Superchannel is supported on the hap ac2 if that’s any help:
http://forum.mikrotik.com/t/clarification-needed-superchannel/127418/1

I just checked and my hAP ac2 units don’t allow for superchannel. I need a directional antenna though, I’m needing it at a survey tool