KP is still working on an omni for the 900 450i. Jeff Broadwick ConVergence Technologies, Inc. 312-205-2519 Office 574-220-7826 Cell [email protected]
> On Nov 22, 2016, at 11:30 AM, That One Guy /sarcasm > <[email protected]> wrote: > > I just dont see there being a 50 unit demand for 1200 dollar antennas in the > WISP market all at once > > I wish with all these magic mumimomachismo anteenas they would build a 360 > degree array of small, tight sectors you can select which of the sectors you > want to use or combine, or divvy up between APs, I think we will see it on > the horizon with all the multiarray smart antennas > >> On Tue, Nov 22, 2016 at 10:21 AM, Jaime Solorza <[email protected]> >> wrote: >> 900Mhz is an interesting band...almost 90% of SCADA systems for water and >> waste water use licensed and unlicensed versions due to NLOS capabilities >> and variety of solutions. However, there is a trend to use 3.65 and 5Ghz >> solutions due to low cost gear and more bandwidth for cameras and IP based >> automation products becoming the standard. Not sure if noise will get >> clearer as these same utilities are installing meters using 900MHz. The >> Omni question back in the 1990's when we were deploying NCR WaveLAN based >> solutions led to me designing an array using four 90 degree Huber Suhner >> panel antennas and a 4 way power divider/combiner. We designed an aluminum >> mount for it and also used HS jumpers....Keith Ebel from HS tested in their >> chamber and sent us the plot....Wish I could find the plots, stored >> somewhere, but it was a thing of beauty. Anyways, it extended range of >> coverage and worked well where we deployed it...Solectek tested it and like >> it but 2.4GHz took off so I never pursued it. Maybe a weekend project for >> Chuck... >> >> >> Jaime Solorza >> Wireless Systems Architect >> 915-861-1390 >> >>> On Tue, Nov 22, 2016 at 8:41 AM, Josh Reynolds <[email protected]> wrote: >>> I would need to see a map. Maybe some of your guys experiences with 900mhz >>> were different from mine in rural Alaska, but the use of the band + lack of >>> density just didn't make any investment viable. Even if the thought was to >>> backfill with towers and nlos/los later on down the road, the return just >>> wasn't there. >>> >>> >>>> On Nov 22, 2016 9:38 AM, "Kurt Fankhauser" <[email protected]> >>>> wrote: >>>> 900mhz is a good solution to get a lot of coverage into an area you are >>>> building into and then you come in later and put up more towers to get >>>> people switched off of it and on a LOS technology and then maybe you still >>>> will only need the 900 sectors to cover a couple directions from the tower >>>> so you can take all the sectors down but 1 or 2. >>>> >>>>> On Tue, Nov 22, 2016 at 10:36 AM, Josh Reynolds <[email protected]> >>>>> wrote: >>>> >>>>> Considering 900mhz is only going to get worse in almost every location, >>>>> why would one continue throwing money at this? Is the time and money even >>>>> expected to be recovered? Equipment costs, installation, configuration, >>>>> constant tweaking, etc... Only to find out that in the very near future >>>>> you will have to go a different route. >>>>> >>>>> What am I missing? >>>>> >>>>> >>>>>> On Nov 22, 2016 9:29 AM, "Bill Prince" <[email protected]> wrote: >>>>>> Could also use a 2-way splitter, and only lose about 3db. Then put two >>>>>> up with an ABAB configuration. You'd still be using 2 APs, but the >>>>>> performance would be quite a bit better. >>>>>> >>>>>> >>>>>> bp >>>>>> <part15sbs{at}gmail{dot}com> >>>>>> >>>>>>> On 11/22/2016 7:24 AM, Adam Moffett wrote: >>>>>> >>>>>>> Maybe he's the one guy with no noise in 900mhz. We don't know that >>>>>>> from back here. >>>>>>> >>>>>>> You could use a cheaper V+H antenna on the AP as long as you use V+H >>>>>>> antennas on the CPE. >>>>>>> >>>>>>> You could also build an array of four sector antennas with a four-way >>>>>>> splitter. You lose at least 6db on the splitter, but if you're looking >>>>>>> at 5dbi and 7dbi omnis then it's probably in the same ballpark. The >>>>>>> good thing is you could set a different tilt angle in different >>>>>>> directions and if load required it in the future you could go to two >>>>>>> 2-way splitters and two APs. >>>>>>> >>>>>>> ------ Original Message ------ >>>>>>> From: "Kurt Fankhauser" <[email protected]> >>>>>>> To: [email protected] >>>>>>> Cc: [email protected] >>>>>>> Sent: 11/22/2016 10:12:13 AM >>>>>>> Subject: Re: [AFMUG] Dual-slant 900mhz omni (for PMP450) ordering group >>>>>>> >>>>>>>> You are wasting you time with omni's on 900mhz. So your sacrificing a >>>>>>>> lot of gain to get 360 degree coverage which in turn will result in >>>>>>>> higher overall noise floor and lower signal when this 450 product >>>>>>>> really starts to shine you need 25db+ SNR at the client side to get >>>>>>>> the higher modulation connections. So even if you got the Omni you'd >>>>>>>> going to be lucky to get 8-10db SNR to the client which means your >>>>>>>> only going to be running at 2x speed and getting 10mbps download which >>>>>>>> will probably be intermittent. I had a lot of omnis on FSK 900 and I >>>>>>>> can tell you that after having used the cambium slant sector on 450 I >>>>>>>> am a firm believer in sectors only for 900 from here on out. I have >>>>>>>> connections that are 3-4 miles out running 10mhz channels and getting >>>>>>>> 40mbps down/10mbps up. You will never get that with an Omni >>>>>>>> unless you have LOS and if you have LOS then why aren't you using >>>>>>>> another frequency band? >>>>>>>> >>>>>>>> On Tue, Nov 22, 2016 at 2:03 AM, Colin Stanners <[email protected]> >>>>>>>> wrote: >>>>>>>>> I've been looking for dual-slant 900mhz omni options that would allow >>>>>>>>> lower-cost PMP450 900mhz deployment on middle-of-the-woods towers >>>>>>>>> where there are only a small number of customers (and low noise). I >>>>>>>>> know that "omnis suck compared to sectors", but having nothing at all >>>>>>>>> sucks more. Due to the difficulty of designing dual-slant antennas >>>>>>>>> and the small market, options are very few. >>>>>>>>> >>>>>>>>> Commscope has the CH360QS, only 5dbi gain at ~900mhz... and it's a >>>>>>>>> cellular base station omni with all the fancy doodads: 1800-2200Mhz >>>>>>>>> band that WISPs can't use, internal GPS antenna, internal diplexer, >>>>>>>>> remote-controlled signal tilt on the upper band, etc. At $3500 per >>>>>>>>> antenna I hope that it makes your breakfast too. >>>>>>>>> >>>>>>>>> Alpha has the best design that I found at present, the AW3464. ~7dbi >>>>>>>>> gain http://alphaantennas.com/products/small-cells/aw3464/ . It's >>>>>>>>> ~$1200 USD which is still inexpensive compared to any other NLOS >>>>>>>>> options. >>>>>>>>> >>>>>>>>> But currently those antennas cannot be bought - I spoke with >>>>>>>>> Crossover Distribution and Alpha, they haven't received enough POs to >>>>>>>>> make a production run, need 50 orders at a bare minimum. So if anyone >>>>>>>>> else is really interested in one or more of these antennas, ready to >>>>>>>>> buy for sure if they are available, e-mail me "If available, I will >>>>>>>>> buy x number of the Alpha AW3464 at $1200/USD each from Crossover." >>>>>>>>> and I'll make a list, once it hits 50+ antennas I'll speak with >>>>>>>>> Crossover and see if it can happen. >>>>>>>>> >>>>>>>> >>>>>> >>>> >> > > > > -- > If you only see yourself as part of the team but you don't see your team as > part of yourself you have already failed as part of the team.
