If the B11's work for you, great. But we definitely use our FDD links to
haul hundreds of Mbps in both directions simultaneously, and with
sub-millisecond latency. It's naturally the best option where you're
doing rings with multiple borders/upstreams feeding the network.
On 11/8/2016 6:57 PM, Rory Conaway wrote:
They are half duplex but since they can combine transmit on both 40MHz
links, if the majority of your traffic is 1 direction, you end up with
more bandwidth for the same QAM. And again, $2K. So if you can get
800Mbps links, and can deliver more than 400Mbps in one direction, I’m
thinking that’s a pretty good value.
As for it being a glorified chipset, the Quantenna chipset was
designed to move lots of data and has a boatload of computing power.
And the next version is designed to move 10Gbps so I’m thinking
Quantenna is a little more than a WiFi chip. Yea, it’s half-duplex
but with 90% or more of my traffic moving 1 direction, who cares.
Considering this entire link cost about $6500 for radios and antennas
for a 50 mile shot, I’d say it’s a great value.
Rory
*From:*Af [mailto:[email protected]] *On Behalf Of *Mathew Howard
*Sent:* Tuesday, November 8, 2016 12:08 PM
*To:* af
*Subject:* Re: [AFMUG] Class A and B antennas
Yes, I'm fairly certain there isn't any way to use only one polarity.
I'm pretty sure that would have to be aggregate - but, since they are
half duplex radios, it should be able to do the full 480 either
direction at any given time (just not both directions at once...)
On Tue, Nov 8, 2016 at 11:50 AM, Eric Kuhnke <[email protected]
<mailto:[email protected]>> wrote:
Unless I am grossly mistaken a B11 always operates in both polarities
no matter what channel size.
On Tue, Nov 8, 2016 at 9:45 AM, Sean Heskett <[email protected]
<mailto:[email protected]>> wrote:
Rory is that 480Mbps aggregate or each direction. also is it both
polarizations of a 40Mhz channel or one polarization?
-sean
On Tue, Nov 8, 2016 at 5:35 AM, Rory Conaway <[email protected]
<mailto:[email protected]>> wrote:
And availability. The B11’s were available almost a year ago. Here
is another thing, the B11’s can get up to 480Mbps of real throughput
in a 40MHz channel.
Rory
*From:*Af [mailto:[email protected] <mailto:[email protected]>]
*On Behalf Of *Josh Reynolds
*Sent:* Tuesday, November 8, 2016 5:05 AM
*To:* [email protected] <mailto:[email protected]>
*Subject:* Re: [AFMUG] Class A and B antennas
Just $1,200+ more per end than an AF11x.
You could buy a pair of Cisco SFPs for that savings! At list price! ;)
(Yes, I understand business case vs product cost, just ribbing you a bit.]
On Nov 8, 2016 6:00 AM, "Mike Hammett" <[email protected]
<mailto:[email protected]>> wrote:
I haven't bought B11s, just while scouting for options, I *COULD* do
B11s. I could also swap them out later for something else like an
AlfoPlus2.
Why would I do a B11? Cheapest 11 GHz link with an SFP.
-----
Mike Hammett
Intelligent Computing Solutions <http://www.ics-il.com/>
_Midwest Internet Exchange_
_The Brothers WISP_
_
_<https://www.facebook.com/ICSIL>
------------------------------------------------------------------------
*From: *"Bill Prince" <[email protected]_>
*To: *[email protected]_
*Sent: *Monday, November 7, 2016 10:51:11 PM
*Subject: *Re: [AFMUG] Class A and B antennas
+1
Inquiring minds.
bp
<part15sbs{at}gmail{dot}com>
On 11/7/2016 8:47 PM, Sean Heskett wrote:
If you are in a congested RF environment why on earth would you
waste the spectrum on a B11? It only does 256QAM
On Mon, Nov 7, 2016 at 6:42 PM Mike Hammett <[email protected]_>
wrote:
*nods* I asked about going from a 3' to a 6' SHP dish, no go.
That said, I've got a couple paths in HFT central where I can
still do B11s. :-)
-----
Mike Hammett
_Intelligent Computing Solutions_
_Midwest Internet Exchange_
_The Brothers WISP_
_
_
------------------------------------------------------------------------
*From: *"George Skorup" <[email protected]_>
*To: *[email protected]_
*Sent: *Monday, November 7, 2016 7:39:31 PM
*Subject: *Re: [AFMUG] Class A and B antennas
My finger clicked send before my brain.
Interestingly, a RadioWaves HP2-11 has 60dB f/b ratio and is a
Cat B. While a HP3-11 has 62dB f/b and is Cat A. The
VHLP800-11 has 59dB f/b and is Cat A while being only 3"
smaller in actual diameter vs the HP3-11 (35.5" for a "2.5"
foot antenna, vs a 38.4" 3 foot). But a bit weaker f/b ratio
than a HP2. Both are shrouded. I don't get it. I think there
may be something else like main lobe beamwidth, too.
The problem with all this Cat A vs B stuff is it really
doesn't matter anymore in congested areas. I had Liz look for
a 56MHz channel on a path. She said nope. I said, OK, what
about changing the 2' end to a 3'. She still said nope.
Polarity, antenna size, etc., nothing mattered. Out of
channels is out of channels. Good luck with those funky B11's.
On 11/7/2016 7:09 PM, Mike Hammett wrote:
Yes. Not a size requirement, just a suppression
requirement. It's just what size of antennas normally meet
those requirements.
-----
Mike Hammett
_Intelligent Computing Solutions_
_Midwest Internet Exchange_
_The Brothers WISP_
_
_
------------------------------------------------------------------------
*From: *"George Skorup" _<[email protected]>_
*To: *[email protected]_
*Sent: *Monday, November 7, 2016 7:08:11 PM
*Subject: *Re: [AFMUG] Class A and B antennas
IIRC, the classes are about front to back radio and
sidelobe suppression.
On 11/7/2016 6:45 PM, Mike Hammett wrote:
2.6' in 11 GHz. I forget who.
-----
Mike Hammett
_Intelligent Computing Solutions_
_Midwest Internet Exchange_
_The Brothers WISP_
_
_
------------------------------------------------------------------------
*From: *"SmarterBroadband" _<[email protected]>_
*To: *[email protected]_
*Sent: *Monday, November 7, 2016 6:34:03 PM
*Subject: *[AFMUG] Class A and B antennas
Does anyone make a 2 foot Class A antenna for 11 GHz?
Or is 3 foot the minimum.
Does anyone make a 1 foot Class A antenna for 18 GHz?
Or is 2 foot the minimum.
Is there a minimum distance for a 11 GHz link?
Thanks
Adam
<https://www.facebook.com/ICSIL>
