I don't even know of amps for 5GHz?
I thought this was mainly about antenna gain...
--
On 2/10/2014 3:14 PM, D. Ryan Spott wrote:
I would be happy to drive out there to give you a hand Arthur.
ryan
On 2/10/14 9:19 AM, Marlon Schafer (509.982.2181) wrote:
I'm with Forrest here.
Back in the "back ol' days" of everyone running amps (we had to back
then in many cases) some vendors loved to sell more power. More
power means faster service at longer ranges right?
WRONG. Carrier to interference level is where your speed and
distance comes from.
The high power systems, as Forrest says, cause the radios to produce
much more *detectable* power outside their main band. That power
outside the main band causes the interference.
It was always a struggle, but when I used to do interference I
convinced many WISPs that LOWER powers would actually improve the
performance of their networks. It was nearly 100% true. In the rare
cases when lower power levels didn't work it was because people were
trying to use higher powers to over-ride physics and go through
trees, buildings etc.
One very important note here. If you do try lower power levels
you'll have to lower ALL of the devices back down to reasonable
levels (RSSI should be between --65 and --75 for most modern radios
to perform their best, --55 will work but see the above notes about
self inflicted interference....).
A quick check is to shut down all of your AP's in an area and see
what the noise goes to.
Oh yeah, very few radios really report accurate interference
information. If you are checking those levels via anything other
than a real spectrum analyzer you'll likely find out that there are
also other things happening in your area.
Call if you'd like and we can talk this out a bit more.
509.988.0260
laters,
marlon
*From:* Forrest Christian (List Account) <mailto:li...@packetflux.com>
*Sent:* Sunday, February 09, 2014 9:53 AM
*To:* WISPA General List <mailto:wireless@wispa.org>
*Subject:* Re: [WISPA] Are we being muscled out of the 5265 - 5700
frequencies?
I'm going to agree with others...
Running outside legal limits doesn't look good to the FCC, and it
sounds like you are definitely running outside the limits since you
are whining about the ability to run your radios in a mode which
seems to have no use than to exceed the limits.
I will also add that if you're running all your radios hotter than
they should be that your nose floor problem is most likely self
inflicted. My experience over the years is that radios are designed
to run at a specific tx power and if you're exceeding it you get a
lot of out of channel bleed over. Even if the radios don't do this
you are introducing far more rf than is likely needed causing an
overall rising of the noise floor.
Please don't interpret everyone's ire incorrectly. We've just all
either dealt with an operator like you are now or have been an
operator like you are now. And right now we're trying to gain
credibility with the FCC which is hard to do when some operators are
flagrantly breaking the rules. Which makes us a bit grumpy.
I'm sure some of your neighbors out there would love to help you
better understand what you are doing to yourself and help you improve
your operations which will in turn improve your quality of service.
Heck, I'd drive over there for a weekend if my schedule wasn't so packed.
In any case please ask for help in appropriate spots and let us help
you reap the rewards of a correctly and legally operating network.
On Feb 8, 2014 4:49 PM, "Art Stephens" <asteph...@ptera.com
<mailto:asteph...@ptera.com>> wrote:
Recent events make me wonder if the FCC is trying to muscle wisps
out of these frequencies.
Since we are primarily Ubiquiti equipment I can only speak from
that platform.
First the latest firmware update removes compliance test which
for about 40% of our equipment deployed would render them
unusable since 5735 - 5840 runs at - 50dBm or higher noise levels
in our area,
Second is new product released only supports 5735 - 5840.
Seems like DFS is such a pain that manufacturers do not want to
mess with it.
Case in point the new NanoBeam M series only support 5725-5850
for USA.
Worldwide version which we are not allowed to buy or deploy
supports 5170-5875.
Seems the only alternative is to go with licensed P2MP which
makes more money for the FCC and drives the cost of wireless
internet up for both wisps and consumers.
--
Arthur Stephens
Senior Networking Technician
Ptera Inc.
PO Box 135
24001 E Mission Suite 50
Liberty Lake, WA 99019
509-927-7837 <tel:509-927-7837>
ptera.com <http://ptera.com>
facebook.com/PteraInc <http://facebook.com/PteraInc> |
twitter.com/Ptera <http://twitter.com/Ptera>
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