RE: [WIRELESS-LAN] WiFi/Leaky Coax
We used TM-600 leaky Coax for several areas before moving to 802.11n. It actually worked well, here is the info: http://www.timesmicrowave.com/downloads/products/trad-brochure.pdf Marcelo Lew Wireless Enterprise Administrator University Technology Services University of Denver Desk: (303) 871-6523 Cell: (303) 669-4217 Fax: (303) 871-5900 Email: m...@du.edumailto:m...@du.edu [DU_WiFi-Logo] From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Jim Glassford Sent: Thursday, January 31, 2013 12:04 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Subject: Re: [WIRELESS-LAN] WiFi/Leaky Coax Hi William, We installed a test setup many years ago using Trilogy AirCell Radiating Cable. It worked as expected, even signal strength over ~200 feet from one 2.4GHz access point antenna. Ours was indoors, hung above a drop ceiling with offices on one side. Sure we could have gone farther, one AP at end of hallway, same signal strength on each end. http://www.trilogycoax.com/products_wireless_radiating.shtmlhttp://www.trilogycoax.com/products_wireless_radiating.shtml Had this pdf link saved for some information from Drexel back in 2005 using Leaky Coax http://dlibrary.acu.edu.au/depts/itcs/questnet2005/papers/Ken_Blackney.PDFhttp://dlibrary.acu.edu.au/depts/itcs/questnet2005/papers/Ken_Blackney.PDF best! jim On 1/31/2013 1:17 PM, Green, William C wrote: Does anyone have recommendations for vendors selling leaky coax systems that support 802.11g (2.4GHz single antenna)? We're studying ways to inexpensively provide very low density wireless coverage in our utility tunnels. This would only be for the occasional worker-- our tunnels are small, dangerous and not open for public access. The interior DAS market that use to push these solutions seems to have gone away (given leaky coax doesn't work well for high density/high speed and MIMO). Traditional AP placement looks to be cost prohibitive. We'd be happy to learn tips from anyone that has done this at their institution already. -William ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. inline: image001.jpg
Re: [WIRELESS-LAN] WiFi/Leaky Coax
I don't have experience with leaky coax, but just wanted to throw out a random idea. If your tunnels are somewhat straight, you could put narrow beam high-gain antennas on the ends and shoot the signal down the tunnels. Just a thought. Nathan Hay Network Engineer | NOC WinWholesale Inc. From: Green, William C gr...@austin.utexas.edu To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU, Date: 01/31/2013 01:17 PM Subject:[WIRELESS-LAN] WiFi/Leaky Coax Sent by:The EDUCAUSE Wireless Issues Constituent Group Listserv WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU Does anyone have recommendations for vendors selling leaky coax systems that support 802.11g (2.4GHz single antenna)? We're studying ways to inexpensively provide very low density wireless coverage in our utility tunnels. This would only be for the occasional worker-- our tunnels are small, dangerous and not open for public access. The interior DAS market that use to push these solutions seems to have gone away (given leaky coax doesn't work well for high density/high speed and MIMO). Traditional AP placement looks to be cost prohibitive. We'd be happy to learn tips from anyone that has done this at their institution already. -William ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. * This email message and any attachments is for use only by the named addressee(s) and may contain confidential, privileged and/or proprietary information. If you have received this message in error, please immediately notify the sender and delete and destroy the message and all copies. All unauthorized direct or indirect use or disclosure of this message is strictly prohibited. No right to confidentiality or privilege is waived or lost by any error in transmission. * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] WiFi/Leaky Coax
Hi William, We installed a test setup many years ago using Trilogy AirCell Radiating Cable. It worked as expected, even signal strength over ~200 feet from one 2.4GHz access point antenna. Ours was indoors, hung above a drop ceiling with offices on one side. Sure we could have gone farther, one AP at end of hallway, same signal strength on each end. http://www.trilogycoax.com/products_wireless_radiating.shtml Had this pdf link saved for some information from Drexel back in 2005 using Leaky Coax http://dlibrary.acu.edu.au/depts/itcs/questnet2005/papers/Ken_Blackney.PDF best! jim On 1/31/2013 1:17 PM, Green, William C wrote: Does anyone have recommendations for vendors selling leaky coax systems that support 802.11g (2.4GHz single antenna)? We're studying ways to inexpensively provide very low density wireless coverage in our utility tunnels. This would only be for the occasional worker-- our tunnels are small, dangerous and not open for public access. The interior DAS market that use to push these solutions seems to have gone away (given leaky coax doesn't work well for high density/high speed and MIMO). Traditional AP placement looks to be cost prohibitive. We'd be happy to learn tips from anyone that has done this at their institution already. -William ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
