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#31
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What's In a Name -- Of My Antenna?
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. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
#32
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What's In a Name -- Of My Antenna?
"Sal M. O'Nella" wrote in message ... "rickman" wrote in message ... What I really need in an antenna, is something I can add to the ubiquiti nanostation m900 loco I am using for Internet access. The internal antenna is only 7.5 dBi. I see a Yagi which is 13 dBi but it seems to be out of date. The current model is very fancy and is over $200. The other one is only $33. How about this one for $30 http://www.amazon.com/Yagi-WiFi-Ante...ilpage_o01_s00 |
#33
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What's In a Name -- Of My Antenna?
"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. Thanks for the correction regarding the frequencies. I missed that. "Sal" (KD6VKW) |
#34
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What's In a Name -- Of My Antenna?
"Wayne" wrote in message ... "Sal M. O'Nella" wrote in message ... "rickman" wrote in message ... What I really need in an antenna, is something I can add to the ubiquiti nanostation m900 loco I am using for Internet access. The internal antenna is only 7.5 dBi. I see a Yagi which is 13 dBi but it seems to be out of date. The current model is very fancy and is over $200. The other one is only $33. How about this one for $30 http://www.amazon.com/Yagi-WiFi-Ante...ilpage_o01_s00 ================================================ It looks like the one I bought that would not perform well for me at 2.4 GHz. I measured my directors, which should be close to (but slightly shorter than) a half wavelength. They measure 5 cm tip-to-tip but are NOT insulated from the boom, so add another cm or so, making them effectively 6 cm long or half of a 12 cm wavelength. By the formula 300/wavelength in meters, 300/0.12 = 2500 MHz. It ought to work -- so my problem is evidently somewhere else. Sorry but I'm no help. "Sal" |
#35
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What's In a Name -- Of My Antenna?
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 |
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