Does the B11 give you any kind of BER or FEC error rate? Is -46 possibly
too hot? Do those have any kind of diplexer? Or possibly at the edge of
the band and some filter is clipping? Don't they have a spectrum
analyzer too?
On 8/17/2017 4:51 PM, Mathew Howard wrote:
Well, most of our issues seemed to just be flakey hardware... the
first link we put up was the very first batch (they were actually
pre-orders... made in California). One of them kept randomly
rebooting, and we went through trying everything we could come up with
(cables, power supplies, etc.) and eventually swapped sides to see if
the problem followed the radio, which it did - at which point we told
them we wanted a new one, and they were pretty quick about replacing
it (and the RMA process was pretty painless). Once we got that problem
dealt with, that same link just refused to run at full modulation (I
don't remember exactly what it was doing, but it was only able to
handle around 500mbps of real traffic). I eventually decided we should
have a spare radio on the shelf anyway (since we had two links up at
that point) so I bought a new one and swapped out the last made in
California radio, and that link has actually been pretty stable now
that it has the new made in China radios on it... and for the most
part it does run at, or close to, full modulation (it does still drop
down sometimes, for no reason that's apparent to me, but it stays high
enough that I don't really care).
Now, our other link... why it won't run at full modulation is beyond
me - the signal is where it should be, and there's no reason I can see
for it (see attached screenshot)... and yes, it will randomly drop to
lower modulations with no change in signal level, or any other obvious
reason... it almost seems like it's picking up interference from 5ghz
radios (whether or not that actually is happening, or is even possible
I have no idea). It does consistently stay at high enough modulation
to handle as much throughput as it needs to, so I haven't really put a
lot of effort into trying to get it working better, but it just
doesn't behave like I'd expect a licensed link to.
I will say, I'm not complaining - the B11 is a good radio for what it
is, there isn't another 11ghz radio that can handle a full gig (yes,
only one direction at a time, but that's all I care about anyway) for
anywhere near the price, and their support has been pretty good, in my
experience. Also, a lot of my impressions came from dealing with odd
problems on early hardware, which is understandable, but I just don't
see the B11 as being in the same class as a normal licensed radio.
On Thu, Aug 17, 2017 at 1:45 PM, Steve Jones
<thatoneguyst...@gmail.com <mailto:thatoneguyst...@gmail.com>> wrote:
Mathew, can you go into more detail? Given the garbage their
online web portal is and the laughable excuses for no CLI, I
expect problems to be met with less than stellar support. So the
more history of user experience i have the quicker I can get to
RMA or full return if these give us grief
On Thu, Aug 17, 2017 at 1:33 PM, Mathew Howard
<mhoward...@gmail.com <mailto:mhoward...@gmail.com>> wrote:
I think the point is, on a B11 link (well, both of ours,
anyway), the modulation will be all over the place at any
given time for no apparent reason. Every other licensed radio
I've ever used will sit at full modulation (or whatever it's
supposed to be at) unless there's something wrong with it, or
there's a major storm going through that causes enough fade
for the signal level to drop. B11's tend to act much more like
I would expect an unlicensed link to act.
On Thu, Aug 17, 2017 at 12:30 PM, Rory Conaway
<r...@triadwireless.net <mailto:r...@triadwireless.net>> wrote:
So does that mean that the SAF radios and 80GHz radios
that only do 256QAM or 64QAM aren’t doing full modulation?
You use what works and is in your budget.
Rory
*From:*Af [mailto:af-boun...@afmug.com
<mailto:af-boun...@afmug.com>] *On Behalf Of *Chuck McCown
*Sent:* Thursday, August 17, 2017 9:43 AM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] Figuring out what our FCC
application says
I guess you could say it is not at full modulation if it
is not using the full channel width, but yeah, even if it
is FSK is is still fully modulating.
*From:*Bill Prince
*Sent:*Thursday, August 17, 2017 10:33 AM
*To:*af@afmug.com <mailto:af@afmug.com>
*Subject:*Re: [AFMUG] Figuring out what our FCC
application says
All of our newer radios do 1024 QAM, and a couple do 2048
QAM. They're always running at full modulation (unless
something is wrong).
bp
<part15sbs{at}gmail{dot}com>
On 8/17/2017 9:19 AM, Rory Conaway wrote:
What do you define as full modulation? These are
256QAM radios and they modulate at 256QAM?
