Except those competitors don't sync with you, and it's very often that
our clients don't actually have the strongest signal to our tower, but
somebody else's.
Many of our clients see 15-20 APs, and many more are hidden because they
are 30 or 40MHz wide channels. There are environments much, much worse
than ours.
GPS sync is good *in certain environments, in certain situations*, but
it is not this mythical magic bullet that allows you to be a lazy operator.
Also, by the results today, the only real viable solution on the market
at this time that does have GPS sync in a PtMP configuration does piss
poor in adjacent channel interference environments, which is exactly the
type of environment I'm in.
Josh Reynolds
CIO, SPITwSPOTS
www.spitwspots.com
On 04/18/2015 08:11 PM, Mike Hammett wrote:
The more competitors, the *MORE* you need sync.
-----
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>
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*From: *"Josh Reynolds" <j...@spitwspots.com>
*To: *af@afmug.com, "Mathew Howard" <mhoward...@gmail.com>
*Sent: *Saturday, April 18, 2015 8:51:00 PM
*Subject: *Re: [AFMUG] Very interesting post..
AF absolutely has sync?
As far as AirMaxAC, sure, no sync.. At this time.
In the end though, there are a lot of operators that simply don't care
about sync.
Eventually in many markets it will come to a point when you simply run
out of clean frequency, ie: using one or two or three per tower won't
cut it, due to competitors, cell offload, etc. In that scenario where
GPS sync is virtually useless (because you're picking the best freq
per direction), its pretty obvious that there are a few radios that
would currently excel in that scenario.
There are many places where we are, for instance, where multiple
competitors, city and state links, federal, etc have towers less than
a mile from us. Having the ability to "shrug off" that adjacent and co
channel noise is critical for us.
On April 18, 2015 4:52:38 PM AKDT, Mathew Howard
<mhoward...@gmail.com> wrote:
This test ignores a few kind of important details... the UBNT and
Mikrotik AC radios have no ability to sync, which gives them a
significant disadvantage. also, the Mimosa radios are
(theoretically) capable of higher throughput since they are the
only ones with the ability to use two 80mhz channels... granted,
it's pretty rare that is actually possible in the real world, but
if you had synced Mimosas everywhere, it could be done. He's also
using a $499 ePMP radio, when he should be using a $200 Force110 PTP.
That said, the conclusion the the AF5x is the best is probably
right :P
On Sat, Apr 18, 2015 at 5:55 PM, Ken Hohhof <af...@kwisp.com
<mailto:af...@kwisp.com>> wrote:
If your criterion is performance in the presence of a signal
on a different frequency 30 dB stronger than the desired
signal, this analysis is relevant. Also, this seems to be the
scenario airPrism is designed to address. But how often would
this occur? Even if the interference is from another
non-synced transmitter on the same tower, you’d think
directional antennas would knock the interfering signal down
to less than 1000 times the desired signal.
I guess this could be realistic if you have a point to point
link in the same band as a sector, so that a giant dish at the
other end is pointed right at your sector.
*From:* Josh Reynolds <mailto:j...@spitwspots.com>
*Sent:* Saturday, April 18, 2015 5:34 PM
*To:* af@afmug.com <mailto:af@afmug.com> ; Seth Mattinen
<mailto:se...@rollernet.us>
*Subject:* Re: [AFMUG] Very interesting post..
Horseshit, read the article. Did you miss the portion where
Jim said "it's the exact same chip that's in the RM5"?
I would have liked to have seen the RM5 in this test as a
baseline, but ignoring the results simply because it's N tech
in the EPMP is silly. Not only does the throughput drop, but
the LEVEL it degrades at is only "bested" by the B5C in a few
of the tests. N or not, that's a very poor result.
I would love to see other tests posted on this from other
people, its always nice to have multiple sources to remove any
potential level of bias.
Jim did an excellent job on this and should be commended.
On April 18, 2015 2:26:50 PM AKDT, Seth Mattinen
<se...@rollernet.us <mailto:se...@rollernet.us>> wrote:
On 4/18/15 2:49 PM, Peter Kranz wrote:
Very interesting shootout comparing AF5X, AC-Lite, AC
PTP, EPMP-1000, B5c and RB922
https://community.ubnt.com/t5/airMAX-Stories/Radio-Shootout-Pt-2-let-s-try-a-whole-bunch-of-them/cns-p/1232309
Dude didn't seem to catch that the ePMP is an N radio and dismisses
it
as worst of the worst. Looks to me like it would probably hold up
comparably to its AC counterparts if you take that into
consideration.
~Seth
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brevity.
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