In my opinion, it's not going to be worth it to do a complete upgrade from what you currently have on PMP100 to 450i. Are the customer's pretty evenly spread across all those APs? If there are a few APs that are a lot denser, it may make sense to upgrade those APs, but to me it's just not worth putting that kind of money into 900mhz at this point.
When PMP450i 900mhz first came out, we it was working great for us... but now half our APs are nearly worthless because the noise floor has gone up so much in certain areas (I'm assuming smart grid, but I haven't actually verified that). On Thu, Nov 30, 2017 at 12:34 PM, George Skorup <[email protected]> wrote: > We've got about 10 450i 900 APs up now. We tried Baicells at most of those > sites. I'm talking stupid dense trees. Made it two blocks in a small town > and RSRP dropped off to -120. Plus that was back when you couldn't turn > down the Tx power on the eNB. It was the full 1W per port, so we were still > 4-5dB over the EIRP limit with a KP 14dBi sector and cable loss. > > We do have Baicells at other sites and we've seen roughly 85% success rate > getting customers off of 900. So it does work, just not everywhere. > > Anyway.. a couple of those 900 450i sites have a dual H & V omni setup. It > mostly works, but I do not recommend it. The typical omni problem, > interference from everywhere. > > But like Steve said, once our power co turns up their grid, I fully expect > 900 to be worthless. I guess we'll see. > > On 11/30/2017 11:27 AM, Kurt Fankhauser wrote: > > My worry is if I deploy it that 5-6 years down the road we will be in the > same boat now of trying to find another solution to get the bandwidth to > the customers because by then they will be all wanting faster than what the > 900mhz can do just like the same problem we have now. > > On Thu, Nov 30, 2017 at 12:24 PM, Steve Jones <[email protected]> > wrote: > >> if you are in the US, the "smart grid" is coming to help you by answering >> your questions for you >> >> >> >> On Thu, Nov 30, 2017 at 11:17 AM, Kurt Fankhauser < >> [email protected]> wrote: >> >>> So I have 2% of my customer base that is running 900mhz PMP100 using 11 >>> different access points. I am trying to cost justify weather it is feasible >>> to upgrade them to PMP450i-900mhz. I am using a lot of Omni's with the >>> PMP100 so most likely I will need twice as many AP's as I currently have >>> because they won't all be on the same side of the towers. So looking at >>> costs I see the following: >>> >>> PMP450i AP's x 20 = $46,000 >>> 900mhz sectors x 20 = $6,320 >>> PMP450 SM x 20 = $4,784 >>> SM antenna x 20 = $1,424 >>> >>> equipment cost total = $58,528 >>> plus my time of putting it all up >>> >>> I am currently grossing $934.00/month from the 2% of customers running >>> on the PMP100-900mhz now. >>> >>> At this rate it would take 5 years to break even on deploying the >>> 450i-900mhz and I really can't offer any better speeds with it than what I >>> was able to offer with the old FSK 2.4/5ghz stuff. >>> >>> Is it just me or does this not make sense worth deploying? >>> >> >> > >
