30Mhz at +49dBm versus 20Mhz at +40dBm. Some of the improvement in airtime obviously comes from the wider channel size but the bigger change was the higher power and quieter spectrum moving everyone into 6x/8x modulation.
Mark > On Feb 26, 2020, at 10:53 AM, Mathew Howard <mhoward...@gmail.com> wrote: > > What's the actual TX power in that case before and after? I thought the > number I had heard for CBRS was 47db EIRP in a 20mhz channel... although I > have no idea where that number came from, so it could very well be wrong . > > On Wed, Feb 26, 2020 at 9:26 AM Mark Radabaugh <m...@amplex.net > <mailto:m...@amplex.net>> wrote: > Way more than 5db, 10dB is more realistic. This is a typical customer off a > 450m 3.65 CBRS AP running at full power: > > <PastedGraphic-1.png> > > Even more interesting: > > <PastedGraphic-2.png> > > This shows frame utilization of the 450m before and after the switch to CBRS. > The higher power and cleaner spectrum greatly increased the modulation of > the customers resulting in greatly reduced airtime utilization. > > Mark > >> On Feb 26, 2020, at 10:14 AM, Mathew Howard <mhoward...@gmail.com >> <mailto:mhoward...@gmail.com>> wrote: >> >> It's a 5-6db increase, if I remember correctly, so that could certainly be >> enough to make the difference in a lot of cases. >> >> Of course there's also the fact that half of the people running Baicells >> radios with sectors are probably already running (illegally) at that power >> level anyway... >> >> On Wed, Feb 26, 2020 at 7:50 AM Mike Hammett <af...@ics-il.net >> <mailto:af...@ics-il.net>> wrote: >> Is the CBRS power that much higher where a 450 at CBRS power makes up for >> the lack of nLOS capability as compared to LTE on NN? >> >> Obviously LTE at CBRS power would be that much better, but maybe it's a good >> fit where people need just a little more nLOS capability than 450 provides >> and the extra power gets that for them. >> >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions <http://www.ics-il.com/> >> <https://www.facebook.com/ICSIL> >> <https://plus.google.com/+IntelligentComputingSolutionsDeKalb> >> <https://www.linkedin.com/company/intelligent-computing-solutions> >> <https://twitter.com/ICSIL> >> Midwest Internet Exchange <http://www.midwest-ix.com/> >> <https://www.facebook.com/mdwestix> >> <https://www.linkedin.com/company/midwest-internet-exchange> >> <https://twitter.com/mdwestix> >> The Brothers WISP <http://www.thebrotherswisp.com/> >> <https://www.facebook.com/thebrotherswisp> >> >> >> <https://www.youtube.com/channel/UCXSdfxQv7SpoRQYNyLwntZg> >> From: "Matt Mangriotis via AF" <af@af.afmug.com <mailto:af@af.afmug.com>> >> To: "AnimalFarm Microwave Users Group" <af@af.afmug.com >> <mailto:af@af.afmug.com>> >> Cc: "Matt Mangriotis" <matt.mangrio...@cambiumnetworks.com >> <mailto:matt.mangrio...@cambiumnetworks.com>> >> Sent: Tuesday, February 25, 2020 3:59:25 PM >> Subject: Re: [AFMUG] [ External ] Re: Cambium LTE >> >> I completely understand your skepticism Ken. However, Cambium did design the >> 3 GHz 450m with every intention of being able to support a transition to LTE >> (specifically, as a RRH with cnRanger). The intent is for this device to be >> a fully capable 8x8 MU-MIMO. Yes, you’ve got that right though, you’ll need >> new CPE devices and a BBU for each sector. >> >> >> We don’t have a target date when this will be developed yet… right now, >> we’re focused on getting the cnRanger CBRS 2x2 RRH and High Gain Cat 6 CPE >> devices out in August! >> >> >> With respect to NLOS coverage, I will agree that 450 is not quite on par >> with some of the things that LTE brings to the table (regarding range and >> the ability to maintain the downlink). However, with the increased power >> limits of CBRS, the 450m does an admirable job. In fact, in comparing >> equipment cost and performance, I would suggest that the 450 platform >> outperforms anything out there. That is, it’s less expensive to get >> bandwidth where it needs to be (at a higher rate, and to more customers). If >> the customer density can support the cost of cnMedusa, you’re going to be >> better off from total cost of ownership (both CapEx and OpEx) perspective. >> >> >> The new 3GHz 450b High Gain has 29 dBm Tx Pwr, and a 20 dBi dish integrated >> antenna… this is pretty impressive for CBRS CPE equipment (most of the high >> gain/high power LTE stuff I see is only going to be 23 dBm Tx, plus 15 dBi >> antenna). >> >> >> There are several customers out there that have done these comparisons… >> hopefully, they can chime in. >> >> >> Matt >> >> >> From: AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> On >> Behalf Of Ken Hohhof >> Sent: Monday, February 24, 2020 7:06 PM >> To: 'AnimalFarm Microwave Users Group' <af@af.afmug.com >> <mailto:af@af.afmug.com>> >> Subject: [ External ] Re: [AFMUG] Cambium LTE >> >> >> You should probably talk to someone at Cambium, unless someone here has >> already done that. There was talk 1-2 years ago about 450m is software >> defined so maybe they could use it as a remote radio head with their >> cnRanger LTE BaseBand Unit (BBU). It has been pretty quiet since then, but >> I haven’t been able to make it to the shows. >> >> >> Without an update directly from the horse’s mouth like Matt at Cambium, or >> some kind of announcement, I wouldn’t hold my breath. Back in 2018 it was >> in the realm of “it would be nice”. That’s pretty tentative. Plus you’d >> still have to buy the BBU and new CPE, so it doesn’t sound like a huge >> savings anyway, still 2/3 of a forklift upgrade. I mean, if it turned out >> that the 3 GHz cnRanger RRH was literally a 450m, that would probably be the >> best case, but how likely do you think that is? >> >> >> This is just my personal speculation, if it’s an important part of a >> decision you’re making now, you probably need to get hold of your Cambium >> regional sales manager, or the 450 or cnRanger product manager. If you’re >> going to WISPAmerica, you can probably do it there. >> >> >> >> From: AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>> On >> Behalf Of Jason McKemie >> Sent: Monday, February 24, 2020 6:03 PM >> To: AnimalFarm Microwave Users Group <af@af.afmug.com >> <mailto:af@af.afmug.com>> >> Subject: Re: [AFMUG] Cambium LTE >> >> >> So the 450M is supposed to be LTE upgradable? >> >> >> On Mon, Feb 24, 2020 at 3:45 PM Steve Jones <thatoneguyst...@gmail.com >> <mailto:thatoneguyst...@gmail.com>> wrote: >> >> Something aboit the medusa top can be used with cnranger potentially with a >> fiber run and a software update >> >> >> On Mon, Feb 24, 2020, 3:38 PM Adam Moffett <dmmoff...@gmail.com >> <mailto:dmmoff...@gmail.com>> wrote: >> >> In my opinion, 450 is better than Baicells or Telrad LTE at everything >> except NLOS performance. >> >> ....Except that NLOS performance is so useful that one can be tempted to >> ignore all of the other features of the 450. I do understand that tradeoff >> because I've had to make it myself. >> >> >> On 2/24/2020 4:30 PM, David Williamson wrote: >> >> 450 3.65Ghz vs. Baicells 3.65Ghz LTE = no comparison. All but one of the >> 450 APs are already removed from our network. I am just trying to determine >> if the SMs will be usable on Cambium LTE once they roll it out, or if it >> will require a completely different SM. >> >> >> David >> >> >> From: AF [mailto:af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>] >> On Behalf Of Jason McKemie >> Sent: Monday, February 24, 2020 4:28 PM >> To: AnimalFarm Microwave Users Group >> Subject: Re: [AFMUG] Cambium LTE >> >> >> Why are you getting rid of 3.65 Cambium in favor of LTE? >> >> On Monday, February 24, 2020, David Williamson >> <dwilliam...@customcomputersva.com >> <mailto:dwilliam...@customcomputersva.com>> wrote: >> >> Will the Cambium 3.65 LTE have a completely new SM or will it use the >> existing 450SM's? Trying to determine if I should keep our 450SM's or just >> go ahead and sell them to one of our secondary market distributors along >> with our 450 AP's. >> >> Thanks! >> >> David Williamson >> >> >> -----Original Message----- >> From: AF [mailto:af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com>] >> On Behalf Of Adam Moffett >> Sent: Monday, February 24, 2020 1:57 PM >> To: af@af.afmug.com <mailto:af@af.afmug.com> >> Subject: Re: [AFMUG] Cambium LTE >> >> I think I heard next quarter for the 3.5. >> >> On 2/24/2020 1:48 PM, Jeff Broadwick - Lists wrote: >> > 3.5 isn’t available yet. >> > >> > I believe that 2.5 can be purchased. >> > >> > Jeff Broadwick >> > CTIconnect >> > 312-205-2519 Office >> > 574-220-7826 Cell >> > jbroadw...@cticonnect.com <mailto:jbroadw...@cticonnect.com> >> > >> >> On Feb 24, 2020, at 12:44 PM, Avatar Davis <acd...@mail.harvard.edu >> >> <mailto:acd...@mail.harvard.edu>> wrote: >> >> >> >> Does anyone have experience with Cambium LTE? I am highly dissatisfied >> >> with my current manufacturer and was wondering if anyone had experience >> >> using/demoing their product line. 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