Wow, that makes perfect sense! I had a ticket open with Cambium on this issue for two APs, and I decided yesterday to see if 13.2 (Build 40) made any difference, and it resolved the problem, so I closed the case. I knew the antennas were connected properly, so that explanation never occurred to me! Luckily, our APs with 430 SMs have the correct polarity, so I should be able to set those APs to SISO Interop Mode (which isn’t documented in the new release notes – I’ve already pointed that out on the forum) to get a bit better beacon power.
-- Darren From: Af [mailto:af-boun...@afmug.com] On Behalf Of George Skorup (Cyber Broadcasting) via Af Sent: Thursday, November 13, 2014 11:41 AM To: af@afmug.com Subject: Re: [AFMUG] System Release 13.2 is Official I guess I get to talk about this now. Some of the new A/B (minus FSK, connector anyway) 5GHz APs were built with the internal jumpers reversed. We put up some new sectors and noticed the beacon power was very weak.. because it was on horizontal, not vertical! This is bad for 430 interop, and obviously just as bad for 450 pre-13.2.. weak beacon, interference.. no worky. So yeah, now the beacon is on both polarities. And if you have an AP with reversed jumpers + 430 SMs, you'll have to use MIMO-A 430 interop mode (which I believe is now the default) instead of SISO. Obviously with MIMO you get 3dB less beacon power, and for 450 it doesn't matter, for 430 it might depending on noise levels, etc. Shit happens. On 11/13/2014 10:12 AM, Bill Prince via Af wrote: Noticed this in the corrected list. Does this mean that the PMP450 is polarity agnostic now in all frequencies (specifically 5 GHz)? PMP 450 AP 22943 CPY-9983, CPY-9631 Fixed problem when AP/SM has crossed RF cables and would not register This problem has been resolved in System Release 13.2. bp <part-15@SkylineBroadbandService> On 11/13/2014 5:12 AM, Matt Mangriotis via Af wrote: It is here! We released 13.2 this morning officially. Come to our forum to discuss anything about it. http://community.cambiumnetworks.com/t5/PMP-450/System-Release-13-2-Now-Avaialable/m-p/36254/thread-id/278 Download the software from the usual place on our support site: https://support.cambiumnetworks.com/files/pmp450/ Thanks to all of you that Beta tested this software with us, and helped to make it stronger and better than ever. Now that this is here, we’re hard at work on delivering the next round of enhancements (code name 13.3 (pretty original, huh?)) which are right around the corner. The momentum is building on the PMP 450 platform. Thanks again, Matt
