On Sun, 10 Apr 2016 22:51:07 -0700, "Sal M. O'Nella"
wrote:
"Jeff Liebermann" wrote in message
.. .
On Sun, 3 Apr 2016 15:37:40 -0700, "Sal M. O'Nella"
wrote:
Consider the Browning antenna for 2.4 GHz.
http://www.walmart.com/ip/Browning-B...tenna/21188799
We're using them for a mesh network experiment. Mine came from Radio Shack
(online) for about that same price. I cannot recall the model number of
the ones I bought but the housing matches.
His Ubiquiti Nanostation m900 Loco runs on 900MHz, not 2.4GHz.
Also, the 2 reviews above, of the Browning yagi both indicate that the
antenna fell apart when removed from the box.
====================================
I'm sorry to hear the Browning antenna was a disappointment. Mine matches a
more expensive Wifi antenna and has proven durable.
I'm surprised that it worked for you. I could find no data other than
the claimed 15dBi gain for the Browning BR-6320. It's carried by many
dealers, but I could find no link to the original manufactory. I
guess I'm spoiled and find that specifications, graphs, and field
tests to be rather useful.
Also, I seem to have had bad luck with wi-fi yagi's. Here's an
analysis of the MFJ-1800 yagi, that demonstrates that it's really a
200 ohm antenna, not 50 ohms.
http://802.11junk.com/jeffl/antennas/mfj1800/index.html
Here's another loser I bought on eBay:
http://802.11junk.com/jeffl/crud/wi-fi-yagi-that-sucks.jpg
I've been under the impression that mesh networks require
omnidirectional antennas. Directional yagis can be used if you're
covering a perimeter, but then tend to limit the coverage area of the
mesh. Also, I gave a talk/rant on wi-fi mesh network issues and
problems to the local Linux user group. Here's my disorganized notes
and graphics:
http://802.11junk.com/jeffl/FLUG-talk-2015-02-28/
The fun part is when I demonstrated wireless throughput with and
without the mesh network, as simulated by a single wi-fi repeater.
This is on 5GHz direct (no mesh repeater) at about 60 mbits/sec
thruput:
http://802.11junk.com/jeffl/FLUG-talk-2015-02-28/802.1a%20direct.jpg
This is the same hardware as above, but through a Netgear WN3000RP(?)
repeater used as a mesh simulator at about 24 mbits/sec:
http://802.11junk.com/jeffl/FLUG-talk-2015-02-28/802.11gn%20through%20Netgear%20repeater.jpg
for a 60% loss in maximum thruput.
Good luck on your mesh network experiment.
Thanks for the correction regarding the frequencies. I missed that.
"Sal"
(KD6VKW)
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060
http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558