I REALLY like Airaya (www.airaya.com).
I'm putting in some MT gear lately. It's fast and works well for what we're
doing today. But my Airaya gear has worked almost flawlessly for 5 years
now. I think I've only done one or two firmware upgrades to them too. I've
got 3 links of them out
Yeah.
People all too often forget that eirp is a RECEIVE number not a TRANSMIT
number. All it takes is big, big ears and you can hear the other end from a
very long ways away. Makes for much less noise in the area too.
I hate the trend toward high power radios with low power antennas.
You
Doesn't it stand for effective isotropic radiated power? Isn't your
EIRP the same no matter what receive antenna is on the other end?
I get your point, to have a sufficiently strong signal at the distant
receiver you could lower the transmit power and make up for it with a
more effective
Well yes, EIRP is indeed transmit, but it's not the only thing in the system
budget.
-
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com
--
From: os10ru...@gmail.com
Sent: Sunday, November 01, 2009 10:29 AM
To: WISPA
May not be available in your area you would need to verify that -- can not
use in FL where we are not sure about your location.
Scott Carullo
Brevard Wireless
321-205-1100 x102
From: Jerry Richardson jrichard...@aircloud.com
Sent: Saturday, October 31,
EIRP is a TRANSMIT number. "Equivalent isotropic RADIATED power". This
is the radiated power on transmit in dBm leaving the transmit antenna
in the favored direction compared to the power that would be radiated
if 1 milliwatt (0 dBm) were fed into a theoretical isotropic antenna
that had 0 dBi
Anyone have a Intermapper probe for DW gear?
Gino A. Villarini
g...@aeronetpr.com mailto:g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
WISPA Wants You! Join today!
EIRP is the TRANSMIT total of BOTH the radio and the antenna gain.
So with a 4 watt, 36dB limit at the ap, you can't legally run a 1 watt (30
dB) radio into a 13dB sector. You can only transmit 36-13 or 23 dB (about a
quarter watt) with a config like this.
And it doesn't take that much power
Excellent advise. There's a maxim in the amateur radio community (from
the ARRL website) At all times, transmitter power must be the minimum
necessary to carry out the desired communications, for the same
reasons.
Greg
On Nov 1, 2009, at 4:54 PM, Marlon K. Schafer wrote:
EIRP is the
Correction, under the 3 for one rule you can go UP 3 dB in antenna gain for
every 1 dB of radio transmit power that you go down, but only for client side
or ptp installations. It STARTS at 30 dB radio and 6dB antenna.
So if you have a 30dB radio, it's a 6dB antenna. 29dB radio you can use a
The exception to the rule would be Canopy. You can't "muck up the
airways" if every single one of your AP's transmits and receives at the
same time. So then power does make a difference because you can go
through more trees, longer links, etc.
Travis
Microserv
Marlon K. Schafer wrote:
That stops the APs from interfering with each other but there must be
some point where when the APs all turn on at once they cause
interference for the CPEs if the density between APs is too great. Do
you see that in the field?
Also, that does nothing for the poor folk who are using the
There's a contradiction in terms if I ever saw one... Canopy can't muck up the
airways. Maybe not for itself, but for everything else, yes.
Canopy needs high output power because of it's lousy antenna gain, which is
what mucks up the airways.
-
Mike Hammett
Intelligent Computing
If you don't get one already made, I can get you the basics. Just figured
out how to make a custom probe for Ubiquiti myself
Scott Piehn
- Original Message -
From: Gino Villarini g...@aeronetpr.com
To: Motorola Canopy User Group
Which we know is true thanks to the antenna patterns that I picked apart a week
or so ago that was so kindly provided by Canopy hang alongs. But any unit with
a low gain antenna and high gain radio will do the same but Canopy worse but
not for itself as long gps synced.
/Eje
(BTW Using Canopy
All Canopy products are 200% below eirp limit on 2.4 and 5.8. 30 db
EIRP
Gino A. Villarini
g...@aeronetpr.com
Aeronet Wireless Broadband Corp.
787.273.4143
-Original Message-
From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On
Behalf Of e...@wisp-router.com
Sent:
You have to use what you need
It's the ones where people have 25 access points in a 20 mile radius, all at 25
watts. Then they ask why it tested so good but doesn't work 1 year (and 200
customers) later. Must be that wireless sucks! lol
Yeah, the more I think about some kind of sync
Right. Canopy's sync doesn't help you much when you want 50/50 ratio for
business subs and someone else wants 70/30 for residential. Then you have
to resort to actual RF engineering. I do know that it still allows for
better frequency reuse vs. non synced systems.
-
Mike Hammett
I have over 60 AP's in a 20 mile radius... probably close to 80.
Travis
Microserv
Marlon K. Schafer wrote:
You have to use what you need
It's the ones where people have 25 access points in a 20 mile radius, all at
25 watts. Then they ask why it tested so good but doesn't work 1 year
There are ways make it work,
You have to work with the settings
Altough canopy appears simple to deploy, it has many options maximize
it's performance
Sent from my Motorola Startac...
On Nov 1, 2009, at 10:15 PM, Mike Hammett wispawirel...@ics-il.net
wrote:
Right. Canopy's sync doesn't
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