Couple things here for you @wayne - I’ll try to cover the antenna A5 related stuff, as well as the B5 multipoint related stuff here.
The B5c multipoint software has been slightly delayed in getting done, we have it out in beta with a limited number of customers right now, and we’ve wanted to take our time to improve the abilities of some airtime fairness capabilities. This is important as the B5 series does not have the bells and whistles of the A5 line where we have really sophisticated traffic management, rate limiting and L2/VLAN features.
I expect to be expanding out the reach beyond this in a limited release within a couple of weeks, I call it limited because we only really want those that need multipoint features to upgrade to it, rather than the huge mass of existing PTP users out there, and we want those PTP folks to stick on the mainline software with all the features we’re adding for PTP efficiencies on the 1.4.0 software that is very close to being released.
I do think it’s important to understand the differences of capabilities with the B versus A series, especially if you’re trying to do multipoint to consumers. Swapping over to us from other vendor previous deployment takes some thought about integration. B series multipoint is great for backhaul applications where we’ll treat links pretty fairly, but there is no “built-in” upper layer features for L2/L3 services you might expect in consumer for segregating VLANs natively per B5 client, etc. This has to be done on the B series with external switch/routers on either sides of the nodes.
The A5/C5 series is really sophisticated at traffic management and L2 features, VLANs, some application intelligence, and is being enhanced to integrate well into subscriber provisioning and billing systems to get configurations all the way down to the home, to Mimosa in home routers or 3rd party routers (customer or WISP supplied).
So, that being said, I’d encourage WISPs to consider the core application, rather than simply which antenna since they’re both connectorized solution.
To address your A5 question on the 4 connectors, they are “generic” so we simply need alternating orthogonal polarizations between connectors 1/2/3/4 in order to get the full MIMO stream matrix identified. We have some WISPs testing this with dual-sector as I speak, and I do expect that it will work reasonably. The primary reason we’re not coming out and fully supporting it, is it will never be as good as the litany of 4x4 antennas we’ve been testing, and can cause a whole bunch of “weird” behaviors if the 2 sectors are not extremely well aligned together in Az/Elev, and if the sectors were not well designed for GPS sync for sidelobe or FTB ratio, etc. the whole thing can be a real challenge to troubleshoot problems for our Support team.
So far we’ve seen about 4 different antenna manufacturer’s 4x4 antennas, some are about ready to go to market that are very cost-effective, in addition to KP, and others we’re still working with them to improve their designs to be a better “match” for the A5c capabilities and sync.
Hope that helps, we certainly are not wanting folks like yourself on the bleeding edge by yourself, and we realize there’s a ton of “leftover” 2x2 sectors out there, so hopefully they can be used in the right application so you’re not getting frustrated with how they’re being deployed.