I've an AIR-AP1252AG-A-K9 and three AIR-ANT5160V-R 5 ghz omnidirectional antennas. It's mounted on the roof of a 1,800 sq ft footprint, 3-story, wood-frame construction building. It's powered by a POE injector and reports Normal (Full Power).
It's a new installation, my first time working with this equipment, and I'm baffled. The 1252's broadcast range appears to be miniscule. Cisco assured me it would blast the building, suggesting I'd probably want to tone it down. I've worked my way through every configuration I could imagine might be relevant, and can't get a signal unless I'm standing on the roof within 20 feet of it. The slightest obstruction degrades the signal and it takes almost nothing to block it entirely. It's unusable outside of short-range line-of-sight.
To give an idea of what penetration is normally like here, there are already a dozen wifi routers of assorted small-beans ilk in the building. I get a strong signal anywhere from nearly all of them. Ironically, the point of the 1252 is to eliminate this ridiculous redundant mess, but it's being outperformed by the garbage it's intended to replace . I've a little NetGear in the approximate center of the structure which gives a decent signal in the basement parking garage, on the roof, at either end of the building, and across the street, but I can only connect to the Aironet if I stand on the roof and look at it.
What am I doing wrong? Have I bought the wrong equipment, or (preferably) am I just an idjit who's missing the obvious?
Somewhat confusingly, it doesn't appear in the "Aironet Antennas and Accessories Reference Guide." I found it by accident, which makes me wonder what else I might be missing.
There have been numerous requests to get the documentations updated but so far, we've been un-successful, however, I do recommend you send a Feedback (located on the lower left-hand corner of the website). I'll try to escalate the matter on Monday. They also have a separate topic on this forum too so you can also help get this improved.
It's 3-in-1, so the AP1252AG-A-K9 with its three 5 ghz connections will support but one ANT5160NP-R.
That's correct. There are two "NP-R" series and the other is for the 2.4 Ghz. Each has three pig-tails and will work with the 1250/1260 and 3500i.
I've been unable to extract a bit of information from Cisco - their "local partner" won't return calls - the $ potential of this project is zilch, from their perspective. I've exhausted my usual list of Übergeeks without having a more productive interaction than I've had here with you. And finally, I note my own research has ceased churning out much in the way of new insights.
Some partners have been giving Cisco a very bad name. Particularly if your budget does not have the letters "m" or "b" in it (if you catch my drift). I hope that your area is served by more than one authorized Cisco reseller because that's what happened to us. Our old supplier slaps a hefty mark-up and were very rigid because we had a contract with them. When the contract expired, we had a "panel" and this helped us tremendously because other members of the panel were willing to bend-over-backwards to get us to purchase from them. The difference between the old supplier and the new "panel" was approximately AU$500 or more PER UNIT.
It's area of coverage is a more-or-less ellipsoid brain blob, with the antenna displaced ≈11% from center? (The azimuth and elevation patterns being very similar means a fairly consistent 3D shape, right? For example, if the patterns were all circular, the coverage area would be a sphere?) This sounds promising in terms of being able to point it downwards from the center of a roof.
I'd still install it in the ground-level. Only the "Yagi" and/or "dish" antennae are ideal for roof-mounted. The "NP-R" is good if you bolt it on the outside-walls and facing outwards. Don't expect to get this right the first time around. You'll need to test this before finally bolting it to the wall. You can test this by "hanging" the patch antennae and with a laptop move in and around the coverage area of your requirement. Depending on your environment this could take minutes to hours but it's the most sure-fire way of getting an accurate reading.
In that I'm unlikely to get hands-on, actual expert advice beyond what little I've gotten, I'm feeling like I'm at the "pick your best guess and try it" stage.
Y'know how I got myself with wireless? I am no techno-babble geek. I'm suppose to be a pencil pusher but raised my hand to know more about wireless (because I was ignorant about it). If you want to learn about something you need to take a first step. And this is exactly what you've done. You'll learn alot with this: Mistakes and right choices/decisions. But most importantly you know how easily to make mistakes but you'll also learn quickly from the mistakes you've made. I am unsure if anyone shares the same feeling but "mistakes" pushes my knowledge and understanding. And learning is an on-going process.