[SLUG] Range of Wifi
I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? -- Howard. LANNet Computing Associates; Your Linux people http://www.lannetlinux.com -- When you just want a system that works, you choose Linux; when you want a system that just works, you choose Microsoft. -- Flatter government, not fatter government; Get rid of the Australian states. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
Howard Lowndes wrote: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? no, colourbond will destroy the signal. get them as high as possible. dav -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Re: Range of Wifi
On Sat, Mar 05, 2005 at 07:00:27PM +1100, Howard Lowndes wrote: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? The aerial you use makes a big difference, but as David said the fence is likely to be having an effect on your signal. Get the aerials high and put good antennas on the APs and you'll have the best possible chance. - Matt signature.asc Description: Digital signature -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
Howard Lowndes wrote:
I am trying to get a wifi signal working between two BV houses about 20
m apart separated by a colourbond fence.
How far above the fence is line of sight?
I am 10' from my neighbours WiFi (mwuhahahaha), but I have to stand on
my desk and hold the laptop above my head to get it {:-(. The fence
between is 7'.
Actually, is in't that bad, but I do need it at least a foot above the
desk (his wireless adsl link is on a high shelf {:-).
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Re: [SLUG] Range of Wifi
On Sat, 2005-03-05 at 19:00 +1100, Howard Lowndes wrote: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. Put the wifi in the ceiling... I have a wifi crossing a normal street with two brick walls in between and normally cars parked between as well. I am using the linksys router. I tried a dlink and it was really awful. -- Ken Foskey OpenOffice.org developer -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
quote who=Terry Collins
Actually, is in't that bad, but I do need it at least a foot above the
desk (his wireless adsl link is on a high shelf {:-).
Always nice having gonzo access to a top-shelf Internet service. ;-)
- Jeff
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Re: [SLUG] Range of Wifi
On Sat, Mar 05, 2005 at 07:00:27PM +1100, Howard Lowndes wrote: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? I went through this exercise recently. The brick doesn't seem to be too much problem. I get 20 metres routinely through up to 3 double brick walls at quite good signal strength. In two of the rooms there are two 150mm heavy RSJ steel beams that don't see to make a difference. As others have noted, the colourbond fence is going to be a problem. I don't have that to contend with. I'm using a netgear wgt624 access point at one end and a netgear pcmcia card at the other. No special set up. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
On Sat, 2005-03-05 at 19:09, Dean Hamstead wrote: are you using directional or section antennas or just omnidirectional? Omni - rubber duckys Dean On Sat, March 5, 2005 7:00 pm, Howard Lowndes said: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? -- Howard. LANNet Computing Associates; Your Linux people http://www.lannetlinux.com -- When you just want a system that works, you choose Linux; when you want a system that just works, you choose Microsoft. -- Flatter government, not fatter government; Get rid of the Australian states. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- Howard. LANNet Computing Associates; Your Linux people http://www.lannetlinux.com -- When you just want a system that works, you choose Linux; when you want a system that just works, you choose Microsoft. -- Flatter government, not fatter government; Get rid of the Australian states. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
Howard Lowndes wrote: I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? You will find that the low frequency quality is due to deflection from the iron in between the houses. First get direct line of site. If this fails or dosn't improve. try this to get optimal frequency from wiFi,go out and buy 2 pringle cans and stick your antennas in the bases.(first eat the pringles) ;) Then point them at each other and Bob's your uncle. You have just made a bidirectional wireless frequency channel, this Rig has been known to do more than 5 kilometres on WiFi. You can also use old CD's in the similar manner ,which resembles that of satellite dishes. By the way you can only achieve the above if you have an external Ariel jack on your wireless cards. enjoy :) -- Best Regards Mohammad Kaan ABD Computer Installations where you get A Better Deal ph: 0408 867 967 http://home.abdcomputers.net Regarding tough new Spam laws that have taken effect in Apr 2004. ABD Computer Installations hereby declares that this E-mail our E-mail system is completely free from Spam, Viruses and Spybots. We request recipients to place us in their white list of friendly E-mailers. -This privilege was achieved because we use Linux. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Range of Wifi
Howard, You will find that the low frequency quality is due to deflection from Iron between the two houses. First get direct line of site. If this fails or dosn't improve. Try this to get optimal frequency from wiFi,go out and buy 2 pringle cans and stick your antennas in the bases.(first eat the pringles) ;) Then point them at each other and Bob's your uncle. You have just made a bidirectional wireless frequency channel, this Rig has been known to do more than 5 kilometres on WiFi. You can also use old CD's in the similar manner ,which resembles that of satellite dishes. By the way you can only achieve the above if you have an external Ariel jack on your wireless cards. enjoy :) -- Best Regards Mohammad Kaan ABD Computer Installations where you get A Better Deal ph: 0408 867 967 http://home.abdcomputers.net Regarding tough new Spam laws that have taken effect in Apr 2004. ABD Computer Installations hereby declares that this E-mail our E-mail system is completely free from Spam, Viruses and Spybots. We request recipients to place us in their white list of friendly E-mailers. -This privilege was achieved because we use Linux. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Network-reachable rescue CDs
Hi quote who=Ben Buxton I've got myself a remote server located faaar away from me (other side of the world), and need to build a rescue CD for it in case things go wrong. Unfortunately most bootable linux CDs dont enable things like ssh servers, and generally cant be built with static IP addresses into the CD image. Does anyone know of a bootable distro with these features: - *easily* buildable iso with pre-configured ip address - ssh service enabled automatically on bootup - suitable for headless machines (ie no options to type on bootup)- - Doesnt require a floppy to read the (network) config I've been looking around quite a lot and so far nothing I've found will let me stick the CD into the machine, have it boot and be instantly network reachable. (And dhcp is not an option here). Anyone know of something I've missed, or an easy way to adapt something like knoppix? The new Ubuntu LiveCD is designed for easy adaptability. You can mount the cloop filesystem, install packages, change settings, and run with it. I'm not immediately sure about static network configuration though, but I can find out. Mondo Rescue is easy and WORKS. You can put back the exact system you backed-up in 30min. I did just that for a system in Phillipines from Perth James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
[SLUG] Re: Range of Wifi (Matthew Palmer)
Hi I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? no, colourbond will destroy the signal. get them as high as possible. I bet beers that it would NOT work and it DID perfectly [Closed steel equipment case, Cisco 350 + stub PNC antenna (inside box)] 5 meters [Closed steel equipment case, Cisco 350 + stub PNC antenna (inside box)] OK so 2.4G leaks around the lid rubber seal !!?? James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
Re: [SLUG] Re: Range of Wifi (Matthew Palmer)
On Sun, 2005-03-06 at 12:19, [EMAIL PROTECTED] wrote: Hi I am trying to get a wifi signal working between two BV houses about 20 m apart separated by a colourbond fence. I can get it to work but the signal is weak - typically less than 20% and drop outs are frequent. Am I asking too much of wifi? no, colourbond will destroy the signal. get them as high as possible. I bet beers that it would NOT work and it DID perfectly [Closed steel equipment case, Cisco 350 + stub PNC antenna (inside box)] 5 meters [Closed steel equipment case, Cisco 350 + stub PNC antenna (inside box)] OK so 2.4G leaks around the lid rubber seal !!?? Yes, but 20m as against 5m = 1/16 signal strength. I remember a story about a company that built a secure computer room that was a Faraday cage (Tempest stuff) - it was for intelligence purposes. They checked it all out and proved that there were no leaks. 3 months later, as part of the contract, they went back to do another check and found a major signal leak. They traced it down to the door lock. Apparently, the client's security droids decided to change the locks around the place in the interim and replaced the nylon through bolt in the door lock with a metal one. James -- Howard. LANNet Computing Associates; Your Linux people http://www.lannetlinux.com -- When you just want a system that works, you choose Linux; when you want a system that just works, you choose Microsoft. -- Flatter government, not fatter government; Get rid of the Australian states. -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
