To be fair, if you were running at 30mhz under part 90, you should be able to do something like +44dBm... of course that's generally not going to be realistic in 3650-3700mhz, and it is in CBRS (for now anyway).
On Wed, Feb 26, 2020 at 10:45 AM Mark Radabaugh <m...@amplex.net> wrote: > 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> 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> 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> 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> >>> *To: *"AnimalFarm Microwave Users Group" <af@af.afmug.com> >>> *Cc: *"Matt Mangriotis" <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> *On Behalf Of * Ken Hohhof >>> *Sent:* Monday, February 24, 2020 7:06 PM >>> *To:* 'AnimalFarm Microwave Users Group' <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> *On Behalf Of *Jason McKemie >>> *Sent:* Monday, February 24, 2020 6:03 PM >>> *To:* AnimalFarm Microwave Users Group <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> >>> 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> 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 <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> 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] On Behalf Of Adam Moffett >>> Sent: Monday, February 24, 2020 1:57 PM >>> To: 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 >>> > >>> >> On Feb 24, 2020, at 12:44 PM, Avatar Davis <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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