Hey folks, I'd love to get rolling on testing some 900 MHz gear here in Memphis. I've got a few high-level questions about it, though, and I'd love to find out what others have already settled. Do we want to do sectors and multiple channels? UBNT sells a AM-9M13 that looks pretty slick; 120 degrees, 2x2 mimo; spec sheet here: http://www.streakwave.com/mmSWAVE1/Video/AirMax900Sector_DS.pdf Mikrotik sells a metal 9hpn that's 27 dBm @ 11Mbps to 24dBm @ 54 Mbps (500 mW transmitter), but that's single chain. From what I read, dual chain MIMO mitigates about 3dBm of noise, which may be worthwhile. These devices don't play nice between vendors, though, and I think the preferred dual chain 900 mhz device is the UBNT XR9. We'd lose TDMA by going with this but gain another chain. Thoughts? Apparently the ARRL band plan is pretty outdated and unrecognized ( http://www.aracc.org/33cm900mhz.pdf ). Around here, we have an organization named SERA that has specified a 900 MHz band plan; it is available at the following URL: http://www.sera.org/pdf-files/SERA%20902%20MHz%20FUP.pdf So, here we've got - 922<=f<928 - 910<=f<916 (it says ATV...) And that's it. So, if we were to sectorize, we don't even have 3 channels to use here. Thoughts? Looks to me like omni, TDMA, and single 5 MHz channel (911-916?) is the best way to go for this. -- Ryan Turner