Not really SAS per se, but the fact that at some date, legacy Part 90
equipment that can’t be certified under Part 96 is supposed to be
decommissioned. That means WiMAX stuff like PMP320 as well as
Ubiquiti M series and AF3x.
I think it’s a bit naïve though to assume this will “eliminate” that
gear like waving a magic wand. Yes, responsible network operators will
replace a lot of it with CBRS equipment or something else, but it’s
not just going to turn into pumpkins at midnight because the FCC
wishes it. We have some grandfathered backhauls with AF3x and even
some Rockets and Powerbridges, those won’t be going CBRS, probably 11
GHz where possible.
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Steve Jones
*Sent:* Wednesday, August 21, 2019 8:54 AM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] Cambium Medusa in 3.65
Sas is suppposed to eliminate the rogue ubnt gear. Im assuming there
is recourse if there is an illegal operator, but as far as i know,
that path is not clearly defined
On Wed, Aug 21, 2019, 8:43 AM Paul McCall <pa...@pdmnet.net
<mailto:pa...@pdmnet.net>> wrote:
Great feedback everyone. Kinda what I figured though. No special
sauce added on the MU-Mimo part of the 450 APs that overcome tree
penetration issues. We have had good luck with the 320s for the
most part, but they are only ¾ baked as a system , and far from
being future proof, capacity wise.
The 3.65 band in general makes they choice a bit tentative.
Meaning you can spend a bunch of money on LTE gear and have a $
150 UBNT device start interfering with you, with little recourse.
Ouch. No 2.5ghz band available in my area.
And, In Florida our ROI sheet has to account for more equipment
damage that most, so its not an easy call.
Paul
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> *On Behalf Of *Steve Jones
*Sent:* Tuesday, August 20, 2019 11:36 AM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com
<mailto:af@af.afmug.com>>
*Subject:* Re: [AFMUG] Cambium Medusa in 3.65
We are at decision time on what to do with the 320/ubnt 3ghz, same
boat on decisions. LTE is a brand new horse to us, but the
historic issues of interference frighten my more than walking in
on my wife with another man when she should be doing laundry, I
need clean work shirts. We had done some base testing with
baicells and we considering the trigger pull, but we have the 450
out, and its performed as well or better than expected, this is
not i or m but it was considered, by us to be a drop in
replacement for the wimax, and ePMP to pick up the LOS UBNT junk.
Ive been trying to find out what SAS is actually doing real world,
but I dont know that the trial operators are allowed to speak of
it without ending up in a lake with concrete shoes. If SAS solves
all the worlds woes regarding interference, its a cost no brainer
to deploy the crap out of baicells, take the range hit, and fill
the gaps with microcells where required.
but, 450, being the horse it is, works, and works well, even in
the interference we have. Its drop in for us on the wimax because
we were very careful on EIRP to not push our luck. we may take a
1x hit here and there, but offloading the LOS customers to EPMP
will make up for that. May still require the occasional non
standard solution for the customers that just dont work on
anything other than the wimax, solely because it connected at such
a crummy level. We should have addressed them historically anyway
though.
On Tue, Aug 20, 2019 at 10:17 AM Ken Hohhof <af...@kwisp.com
<mailto:af...@kwisp.com>> wrote:
Probably not applicable to PMP320, but with the Purewave
basestations, I’m convinced many operators were setting them
to max xmt power ignoring FCC limits on EIRP. That of course
didn’t help upstream, and the CPE was fairly anemic. But
downstream, I think that was part of the “magic”.
I think with CBRS there is the potential of increased EIRP
over what we are allowed under Part 90. Given the huge power
consumption of the 3.6 GHz PMP450m, I have to suspect it has
the power amps to take advantage of higher EIRP, not sure
about the regular 450 AP. If I remember correctly though, it
doesn’t have as many antenna beams as the 5 GHz 450m. And
given the size, weight and power consumption, we have sites I
doubt we could deploy 4 sectors.
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> *On Behalf Of *Colin Stanners
*Sent:* Tuesday, August 20, 2019 9:50 AM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com
<mailto:af@af.afmug.com>>
*Subject:* Re: [AFMUG] Cambium Medusa in 3.65
I agree on the PMP320's impressive tree penetration. We moved
some sites from PMP320 to PMP450... with the added gain of the
PMP450 reflector dish (8+11dBi vs the PMP320's 14dBi) I
expected it to make up for the PMP450's lower transmit power,
and as a result have "similar" final signal levels. In the
end, some customers heavily in trees "lost" up to 10dB of
signal and required moving their mounts etc. So the WiMAX /
flat-panel-in-NLOS magic seems to have been adding around 10dB.
On Tue, Aug 20, 2019 at 7:58 AM Josh Baird
<joshba...@gmail.com <mailto:joshba...@gmail.com>> wrote:
Quite the opposite for us. PMP320 could burn through trees!
On Tue, Aug 20, 2019 at 8:30 AM Ken Hohhof
<af...@kwisp.com <mailto:af...@kwisp.com>> wrote:
WiMAX had little to no magical power against trees
when we deployed it. Trees apparently are hype
resistant. YMMV.
*From:* AF <af-boun...@af.afmug.com
<mailto:af-boun...@af.afmug.com>> *On Behalf Of *Paul
McCall
*Sent:* Tuesday, August 20, 2019 4:22 AM
*To:* AnimalFarm Microwave Users Group
<af@af.afmug.com <mailto:af@af.afmug.com>>
*Subject:* [AFMUG] Cambium Medusa in 3.65
We were told recently by Cambium that their Medusa
product in 3.65 competes favorable with LTE
competitors. We ONLY need it for tree penetration
challenged customers.
I have a healthy skepticism on 3.65 Medusa being able
to magically work better that standard 2.4 Ghz
penetration, seeing the regular 450SM in 3.65
performed as expected compared to a 2.4 Ghz 450SM,
meaning not as well. Seeing that LTE or Wimax far
exceeds normal 2.4 Ghz gear, expecting 3.65 in 450
series (even Medusa) is a strong leap of faith.
We are open minded but skeptical of these recent
claims. We are not happy with the LTE options
available ATM, having field tested Baicells and Bliniq
for a while now.
Paul
*Paul McCall, President *
*Florida Broadband / PDMNet*
*658 Old Dixie Highway*
*Vero Beach, FL 32962*
*772-564-6800*
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