That is correct. There are no plans to release a 3 GHz version on ePMP. We have customers using the 3 GHz PMP 450 who are quite happy so I highly recommend giving it a shot. Here's one: http://community.cambiumnetworks.com/t5/PMP-Stories/Ubiquiti-3-65-to-3-6-450-Migration/m-p/43593#U43593
Thanks,
Sriram