With “small cells” appearing on street light poles on every block, using multiple bands, some with higher EIRP limits than typical WiFi, I wonder at what point the people who worry about microwave exposure start to have a valid concern.
I still think the smartphone right up against your ear is a greater risk, but let’s face it, traditional cell sites are up on 200 ft towers away from population, or on the roof of an office building, often with warning signs and guard rails to keep the public from standing right in front of an antenna array. And as they keep adding spectrum, the FCC limits are on power per band, not total, right? Do these small cells maybe use less than full xmt power? From: AF <[email protected]> On Behalf Of Mathew Howard Sent: Tuesday, September 25, 2018 8:09 PM To: AFMUG <[email protected]> Subject: Re: [AFMUG] DC+ Fiber I didn't realize that Baicells' 5ghz LTE was FDD... that makes it a bit more interesting, but even so, there already lots of other good options for 5ghz gear, and I just can't see the extra headaches of dealing with LTE (which Adam just explained so well...) being worth whatever advantages it might bring. If they could do 3.65ghz uplink, and 5ghz downlink then I might be interested... actually 3.65ghz uplink and 2.4ghz downlink could even be pretty interesting. In 3.65ghz, yes, LTE makes sense. the only other realistic option for 3.65ghz gear is PMP450 anyway, and it's a low enough frequency that NLOS can actually work fairly decently (the extra TX power helps too... which is another reason NLOS is never going to work as well at 5ghz). On Tue, Sep 25, 2018 at 12:46 PM Gino A. Villarini <[email protected] <mailto:[email protected]> > wrote: The only upside to Baicells 5ghz LTE its that is FDD, 1 change for downlink, another channel for uplink. From: AF <[email protected] <mailto:[email protected]> > on behalf of Mathew Howard <[email protected] <mailto:[email protected]> > Gino A. Villarini President Metro Office Park #18 Suite 304 Guaynabo, Puerto Rico 00968 Reply-To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Date: Monday, September 24, 2018 at 8:36 PM To: AFMUG <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] DC+ Fiber Yeah, Baicells is apparently taking pre-orders for LTE-U 5ghz gear now, but I'm having a hard time seeing why anyone would want to use it. Sure, it'll probably have somewhat better NLOS performance than some (maybe even all) of the 5ghz options that are out there, but even if NLOS is better, it's still going to be lousy NLOS. Aside from that, what else does LTE have to offer in 5ghz that I can't do better and/or cheaper with other gear that's already out? as far as I can tell, you just add a lot of extra baggage by using LTE for no real benefit. I have a hard time believing that LTE is going to handle interference any better than anything else (I'll be surprised if it does as well as some of the other 5ghz stuff). On Mon, Sep 24, 2018 at 6:59 PM Ken Hohhof <[email protected] <mailto:[email protected]> > wrote: I’m not sure a 5 GHz LTE product makes sense, unless you’re talking carrier aggregation and LAA. Otherwise I question the “magic” of “LTE modulation”, once you try to use it in dirty spectrum. Oooooh, 256QAM. Like we haven’t been doing that for years. I put it in the same category as “3.65 GHz goes through trees”. Only if the noise floor is really low, and then it’s not the “S” part of SNR, it’s the “N” part that’s magic. Maybe I’m missing something, but I’m not wanting to spend big bucks (and a big power budget) to use LTE in 5 GHz. Maybe if there’s some killer antenna technology, but I think that’s what Medusa does too. Not that it is any better on price or power consumption. From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Ryan Ray Sent: Monday, September 24, 2018 6:44 PM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] DC+ Fiber This would be better on the price front then if that is possible. On Mon, Sep 24, 2018 at 3:22 PM, Jon Langeler <[email protected] <mailto:[email protected]> > wrote: Baicells just announced 5Ghz LTE, might be others. The brains of the Cambium 3G Medusa is apparently supposed to be capable of LTE modulation is what I thought I heard at the roadshow. It would be a future software option. Jon Langeler Michwave Technologies, Inc. On Sep 24, 2018, at 6:12 PM, <[email protected] <mailto:[email protected]> > <[email protected] <mailto:[email protected]> > wrote: I really have not been paying any attention to this, but is there an unlicensed LTE radio? Meaning an unlicensed radio that uses LTE modulation methods. From: Adam Moffett Sent: Monday, September 24, 2018 4:09 PM To:[email protected] <mailto:[email protected]> Subject: Re: [AFMUG] DC+ Fiber What's nice LTE? Baicells? A Telrad eNB might be "only" $7k, but you'll be north of $9k by the time you figure out all the licenses you need. I'd be curious about a 3.65 Medusa, but I wonder if I can set TDD parameters that will line up with our existing LTE frames. -Adam On 9/24/2018 3:45 PM, Ryan Ray wrote: It's gonna be on display in Vegas. I'm not even in USA so the CBRS stuff isn't really affecting us right now, but when you start looking at 9k per ap you could get some nice LTE instead. It's just surprising being 2k more than the 5ghz pmp450m. Especially with the cost of the SM being higher as well, but maybe the 450b 3.65 will solve that? Time will tell I guess. On Mon, Sep 24, 2018 at 12:41 PM, Ken Hohhof <[email protected] <mailto:[email protected]> > wrote: That’s not surprising, if it includes the MU-MIMO activation key. I guess nutty is in the eye of the beholder. But if it’s really available “soon”, I’m a little surprised, I was afraid they would wait to see what the FCC did with the PAL auction rules. Also whether the industry decided that CBRS is only for LTE devices, even for fixed. And I thought Ubiquiti had trademarked the term SOON™. Anyway, I think something like LTE or cnMedusa is going to be necessary for CBRS, especially with the cost of paying a SAS vendor for each location and the cost of acquiring PAL licenses, and then only getting 10 MHz channels. You don’t get much capacity from 10 MHz of spectrum unless you have all the fancy tricks like beam steering and bidirectional MU-MIMO, and of course at least 256QAM. From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Ryan Ray Sent: Monday, September 24, 2018 1:31 PM To: AnimalFarm Microwave Users Group <[email protected] <mailto:[email protected]> > Subject: Re: [AFMUG] DC+ Fiber It's available very soon, but the pricing is nutty. $9k usd.... On Mon, Sep 24, 2018 at 6:47 AM, Ken Hohhof <[email protected] <mailto:[email protected]> > wrote: Wait, 3.65 Medusa is available now? I thought it was some undetermined date in the future. Or did I misunderstand you? From: AF <[email protected] <mailto:[email protected]> > On Behalf Of Dave Sent: Monday, September 24, 2018 8:09 AM To: [email protected] <mailto:[email protected]> Subject: Re: [AFMUG] DC+ Fiber We have a few towers with TOWER TOP control and management. The ones I designed are 24v and 48v. We have only CMM4 boxes with the Planet switches which I use LC the hybrid cable comes from Besttronics. We have a #12 stranded pair in each of these. I have to have transtector Part#1101-626 at top and bottom to meet our surge protection compliance. Since those sites have been installed I have had zero issues. Seems that 3.65Medusa has made us change to a more direct connection so my box design will have to be modified. All of the Orange tag cables will have to be removed since the packet flux will not support the new power requirements Here is one design we have plans to deploy next week. <image003.jpg> On 09/22/2018 05:05 PM, Mike Hammett wrote: Are most people using SC or LC at the top of the tower? I want to use LC most everywhere I can, but I understand the advantage in SC on a tower where it's easier to work with larger things. What's the next bigger enclosure? Could you put something like this on a swinging panel where I could run a trunk cable into it and then plug individual patch cables going to each radio? Maybe easier on you if you just make it work with something else on the market, like these panels from FiberStore where someone can just get whatever panel they want (LC\SC\whatever)? https://www.fs.com/products/68962.html The goal is to emulate one of these: https://www.raycap.com/wp-content/uploads/DC6-48-60-0-8C-EV_320-1318.pdf https://www.raycap.com/wp-content/uploads/2018/04/DC6-48-60-18-8C-EV_320-1315-1.pdf Power and fiber in one box, transition from trunk to the ground to the radios. I'm sure they'd sell well. ----- Mike Hammett <http://www.ics-il.com/> Intelligent Computing Solutions <https://www.facebook.com/ICSIL> Midwest Internet Exchange The Brothers WISP _____ From: "Chuck McCown" mailto:[email protected] To: "AnimalFarm Microwave Users Group" mailto:[email protected] Sent: Saturday, September 22, 2018 4:51:48 PM Subject: Re: [AFMUG] DC+ Fiber Can put in a patch panel. Just a mechanical thing to solve. But patch panels have cutouts for couplers. And different couplers need different size holes in the part that holds them in. So if someone could tell me which coupler will always be needed, then this is easy. Otherwise I have to offer a variety of coupler options and that multiplies my part numbers etc etc. Happy to do that but not if I only sell 1 per month. From: Mike Hammett Sent: Saturday, September 22, 2018 10:46 AM To: AnimalFarm Microwave Users Group Subject: [AFMUG] DC+ Fiber When do we see a 48v one of these? Also, more density? http://store.packetflux.com/sitemonitor-4-channel-relay-output/ When do we see one of these with a fiber patch panel and slack storage? https://www.mccowntech.com/product/8-circuit-outdoor-dc-power-line-surge-suppressor-protector-copy/ ----- Mike Hammett Intelligent Computing Solutions Midwest Internet Exchange The Brothers WISP _____ -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <https://www.facebook.com/ICSIL> <https://www.facebook.com/ICSIL> <https://www.facebook.com/ICSIL> <https://www.facebook.com/ICSIL> _____ <https://www.facebook.com/ICSIL> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <https://www.facebook.com/ICSIL> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <https://www.facebook.com/ICSIL> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <https://www.facebook.com/ICSIL> <https://www.facebook.com/ICSIL> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com <https://www.facebook.com/ICSIL> -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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