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
Intelligent Computing Solutions
<http://www.ics-il.com/>
_Midwest Internet Exchange_
_The Brothers WISP_
_
_<https://www.facebook.com/ICSIL>
------------------------------------------------------------------------
<https://www.facebook.com/ICSIL>
*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<https://www.facebook.com/ICSIL>
Can put in a patch panel. Just a
mechanical thing to
solve.<https://www.facebook.com/ICSIL>
But patch panels have cutouts for
couplers. And different couplers need
different size holes in the part that
holds them
in.<https://www.facebook.com/ICSIL>
So if someone could tell me which
coupler will always be needed, then
this is easy.
<https://www.facebook.com/ICSIL>
<https://www.facebook.com/ICSIL>
Otherwise I have to offer a variety of
coupler options and that multiplies my
part numbers etc
etc.<https://www.facebook.com/ICSIL>
Happy to do that but not if I only
sell 1 per month.
<https://www.facebook.com/ICSIL>
<https://www.facebook.com/ICSIL>
*From:*Mike Hammett
<https://www.facebook.com/ICSIL>
*Sent:*Saturday, September 22, 2018
10:46 AM<https://www.facebook.com/ICSIL>
*To:*AnimalFarm Microwave Users Group
<https://www.facebook.com/ICSIL>
*Subject:*[AFMUG] DC+
Fiber<https://www.facebook.com/ICSIL>
<https://www.facebook.com/ICSIL>
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/_<https://www.facebook.com/ICSIL>
-----
Mike Hammett
_Intelligent Computing Solutions_
_Midwest Internet Exchange_
_The Brothers WISP_
_
_<https://www.facebook.com/ICSIL>
------------------------------------------------------------------------
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