Matt, I always ask, is this truly electrical downtilt, or just a built-in mechanical downtilt? I would expect electrical downtilt to maintain the downtilt angle across the entire horizontal beamwidth, while mechanical downtilt provides less downtilt at the edges. (Probably not a big deal for a 90 degree sector with 2 degrees of downtilt, it matters more with wider sectors and greater downtilt.)
I usually have the guys downtilt Cambium sectors about 1.5 degrees, so 2 degrees is close to what we do already. But high risk of the tower climbers adding another 2 degrees leading to those of us who stay on the ground or back at the office going WTF when we don't get the range we expected. It would not be a bad idea to actually put a label on the antennas stating the built-in downtilt. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Matt Mangriotis Sent: Thursday, October 20, 2016 2:21 PM To: af@afmug.com Subject: Re: [AFMUG] 450i Integrated The integrated 450i sector antenna does indeed have a 2 degree electrical downtilt. As noted below, it does have tremendous null-fill, as well as optimized Front-to-back isolation to allow frequency re-use patterns. Yes, this downtilt is a departure from our OEM antennas. This should appear in the spec sheet. I will update it so that it is clearly called out, as it is different. Matt From: Af [mailto:af-boun...@afmug.com] On Behalf Of SmarterBroadband Sent: Thursday, October 20, 2016 2:14 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated That is exactly what I saw. Also when using it in link planner it is showing optimum throughput for our current subscribers setting at 3 degrees up tilt. If old panel is used in Link Planner it shows -1 degrees down tilt. So I am guessing -4 electrical down tilt. From: Af [mailto:af-boun...@afmug.com] On Behalf Of Ken Hohhof Sent: Thursday, October 20, 2016 12:08 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated The pattern on the spec sheet would lead you to believe yes, which is a departure for Cambium. It also shows null fill. I don't see a downtilt number on the spec sheet though. From: Af [mailto:af-boun...@afmug.com] On Behalf Of SmarterBroadband Sent: Thursday, October 20, 2016 1:59 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated Does this new 90 degree integrated sector have built in down tilt? Thanks Adam From: Af [mailto:af-boun...@afmug.com] On Behalf Of Daniel White Sent: Monday, October 17, 2016 4:11 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated I think Ken is confusing the Integrated model with the letter A at the end of the PN vs. the new one ending in the letter B. You want the on in the attached Spec Sheet. The new Integrated 450i has better antenna specs than the old integrated model and the Cambium 5GHz sector. The feedback I've heard has been mostly positive, although the integrated model prevents you from turning up the TX power by playing with the antenna gain settings. So if your overdriving your gear - it might not be a good investment. Daniel White Managing Director - Hardware Distribution Sales ConVergence Technologies Cell: +1 (303) 746-3590 <mailto:dwh...@converge-tech.com> dwh...@converge-tech.com From: Af [mailto:af-boun...@afmug.com] On Behalf Of SmarterBroadband Sent: Monday, October 17, 2016 3:00 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated That is the type of information I need. I was not aware the specs on the intergraded were poor. We have never been very happy with the performance of the 85009324001. That begs the question. What 90 degree antenna is giving great results? From: Af [mailto:af-boun...@afmug.com] On Behalf Of Ken Hohhof Sent: Monday, October 17, 2016 2:18 PM To: af@afmug.com <mailto:af@afmug.com> Subject: Re: [AFMUG] 450i Integrated Why would you do that? I thought the integrated was more of a convenience thing, but at the expensive of sidelobe and F/B performance. You could swap out the 450 AP for a 450i AP with the same antenna if you are wanting to run in U-NII-1 or use 40 MHz channels. Or there is an MTI 90 degree sector that supposedly has better sidelobe and F/B performance if that's what you are looking for. From: Af [mailto:af-boun...@afmug.com] On Behalf Of SmarterBroadband Sent: Monday, October 17, 2016 4:07 PM To: af@afmug.com <mailto:af@afmug.com> Subject: [AFMUG] 450i Integrated Has anyone replaced a 450 AP and 90 degree antenna (model 85009324001) with a 450i Integrated? I would like to know if coverage was same / better, and the level of performance improvement? Thanks Adam <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.avast. com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_campaign%3Dsi g-email%26utm_content%3Demailclient%26utm_term%3Dicon&data=01%7C01%7Cmatt.ma ngriotis%40cambiumnetworks.com%7Cce9d1e289df540d96b7308d3f91d4c7c%7C0e263e36 340946228ac818d993e76eb6%7C1&sdata=kv0IhmIZxHjbzoKpoyEzcYZ%2FAlHJcUZ%2FhIxlo rB6bZE%3D&reserved=0> Virus-free. <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.avast. com%2Fsig-email%3Futm_medium%3Demail%26utm_source%3Dlink%26utm_campaign%3Dsi g-email%26utm_content%3Demailclient%26utm_term%3Dlink&data=01%7C01%7Cmatt.ma ngriotis%40cambiumnetworks.com%7Cce9d1e289df540d96b7308d3f91d4c7c%7C0e263e36 340946228ac818d993e76eb6%7C1&sdata=uq4PY4Y%2BQg9%2Bn0j%2BitNeLxsPCLAjFqOjmmt Td29PLpM%3D&reserved=0> www.avast.com
