Not just cheep devices, PlayStation4 is 2.4 only :-/
On Wednesday, February 17, 2016, Eric Kuhnke
<eric.kuh...@gmail.com <mailto:eric.kuh...@gmail.com>> wrote:
Until customers complain their stuff doesn't work, a lot of
cheap laptops, tablets and many low to mid range android
phones are 2.4 only.
On Feb 17, 2016 4:55 PM, "Rory Conaway"
<r...@triadwireless.net> wrote:
If I do this, I’ll probably use 5Ghz for the indoor
devices to avoid 2.4GHz where possible.
Rory
*From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of
*Eric Kuhnke
*Sent:* Wednesday, February 17, 2016 5:15 PM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] Cambium 450i 900Mhz
I should add that in a typical environment with wood
frame houses/other structures, it helps a lot to choose
the 2.4 GHz channel on the home WiFi AP for each CPE
location, so that none of them overlap with your
carefully predetermined 10 MHz channel.
On Feb 17, 2016 3:50 PM, "Rory Conaway"
<r...@triadwireless.net> wrote:
I may set up a test for this in couple weeks.
Rory
*From:*Af [mailto:af-boun...@afmug.com] *On Behalf Of
*Eric Kuhnke
*Sent:* Wednesday, February 17, 2016 4:41 PM
*To:* af@afmug.com
*Subject:* Re: [AFMUG] Cambium 450i 900Mhz
2.4 in 10 MHz channels goes through a decent amount of
trees within 1-2 miles max, if all the CPEs are
nanobridge m5-25 dishes or similar sized reflectors...
I've seen such setups with clients in trees and signals
right around -69 on both chains.
Not a lot of aggregate capacity per sector however.
On Feb 17, 2016 2:13 PM, "Sean Heskett" <af...@zirkel.us>
wrote:
I've never had any luck with 2.4 going through much more
than the side of an aspen tree.
can you set up some 900 test shots?
On Wed, Feb 17, 2016 at 3:09 PM, Rory Conaway
<r...@triadwireless.net <mailto:r...@triadwireless.net>>
wrote:
So given this scenario, would 2.4GHz be better? I can
use 5GHz inside the houses.
Rory
*From:*Af [mailto:af-boun...@afmug.com
<mailto:af-boun...@afmug.com>] *On Behalf Of *Chuck McCown
*Sent:* Wednesday, February 17, 2016 2:57 PM
*To:* af@afmug.com <mailto:af@afmug.com>
*Subject:* Re: [AFMUG] Cambium 450i 900Mhz
I have not measured one, but if someone has a pine tree
nearby and an ohm meter, measure the resistance of the
needle. Make sure you jam the probe into the interior of
the thing.
I am guessing that the water content of the needle
absorbs some of the RF energy al la a microwave oven. But
anecdotal evidence over the past 10-15 years has shown
that pine trees are worse than others so if the needle
itself has a fairly low resistance, like 100 ohms, it is
acting like a dipole with a termination resistor. That
is really going to suck up the signal.
Stealth aircraft have microwave absorbing foam on some of
their surfaces that operate by similar principles.
*From:*Sean Heskett
*Sent:*Wednesday, February 17, 2016 2:13 PM
*To:*af@afmug.com <mailto:af@afmug.com>
*Subject:*Re: [AFMUG] Cambium 450i 900Mhz
the wavelength of 900Mhz is ~33.3cm so a quarter wave
length is ~8.33cm (~3 1/4 inch). Ponderosa pine needles
(and many other pine needles) are around the same 3 1/4
inch length
<https://en.wikipedia.org/wiki/Pinus_ponderosa>https://en.wikipedia.org/wiki/Pinus_ponderosa
so with water in the needles you have a big 900Mhz RF
scattering/reflector ;-)
-Sean
On Wed, Feb 17, 2016 at 1:47 PM, Sam Lambie
<samtaos...@gmail.com <mailto:samtaos...@gmail.com>> wrote:
So if you have a minute to please explain how evergreen
trees are terrible on 900 mhz, I would greatly appreciate it.
On Wed, Feb 17, 2016 at 1:14 PM, Chuck McCown
<ch...@wbmfg.com <mailto:ch...@wbmfg.com>> wrote:
Ponderosa? Fir? Cedar?
The length of the needles matter.
*From:*Rory Conaway
*Sent:*Wednesday, February 17, 2016 12:51 PM
*To:*af@afmug.com <mailto:af@afmug.com>
*Subject:*[AFMUG] Cambium 450i 900Mhz
Realistically, what kind of distances do you get through
these types of trees?
*Rory Conaway **• Triad Wireless •**CEO*
*4226 S. 37^th Street • Phoenix • AZ 85040*
*602-426-0542 <tel:602-426-0542>*
*r...@triadwireless.net <mailto:r...@triadwireless.net>*
*www.triadwireless.net <http://www.triadwireless.net>*
“The ultimate measure of a man is not where he stands in
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times of challenge or controversy” – Martin Luther King
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