Re: Question on range testing
Robert Hubley <[email protected]>
| Newsgroups | gmane.network.wireless.seattle.general |
|---|---|
| Organization | Institute for Systems Biology |
| Message-ID | <[email protected]> |
Thanks Matt....I wish I had known that a day or two ago. :-) Matt Westervelt wrote: > Yup. > > 2511s have this nasty habit of associating to non-specified APs when > using old firmware. It's extremely annoying. > > > > Robert Hubley wrote: > >> That's interesting. I have been holding back upgrading the firmware >> for fear of >> damaging them. They both have very old versions of the firmware on >> them. >> Do you know how that could influence this type of test? >> >> Matt Westervelt wrote: >> >>> You'll also want to make sure you're running the latest firmware on >>> the cards. >>> >>> >>> Tyler van Houwelingen wrote: >>> >>>> you will need to run the antennas in horizontal polarization for >>>> links over water. this will make all the difference. >>>> >>>> tyler >>>> >>>> >>>> >>>> Tyler van Houwelingen >>>> Founder and CEO >>>> Azulstar Networks, Inc. >>>> 1051 Jackson, Grand Haven, MI 49417 >>>> 1117 Rio Rancho Blvd 13, Rio Rancho, NM 87124 >>>> 1-877-AZULSTAR >>>> www.azulstar.com >>>> ----- Original Message ----- From: "Robert Hubley" >>>> <[email protected]> >>>> To: <[email protected]> >>>> Sent: Monday, June 06, 2005 2:37 PM >>>> Subject: Question on range testing >>>> >>>> >>>>> >>>>> We have been attempting to test the range of two Engenius 2511 >>>>> 200mw cards >>>>> over water. Unfortunately we have not been able to setup a >>>>> reliable test platform. >>>>> ( ie. sometimes I can't get it to connect when it's 10 feet away! >>>>> ). What we have >>>>> are: >>>>> >>>>> 2 - Engenius 2511 EXT 200mw pcmcia cards >>>>> 1 - BitsyX ( Soekris-like embeded linux board ) with pcmcia slot >>>>> running wireless-tools and hostap drivers. >>>>> 1 - Windows 2K laptop with windows Engenius drivers loaded ( + cygwin >>>>> package for tools like scp etc ). >>>>> 2 - 15db Omni antennas >>>>> 1 - 15db Panel antenna >>>>> >>>>> Software setup: >>>>> >>>>> BitsyX: iwconfig wlan0: >>>>> mode: ad-hoc >>>>> essid: "bitsyX" >>>>> encryption: None >>>>> ifconfig wlan0: >>>>> ip: 10.0.0.1 >>>>> bcast: 10.0.0.255 >>>>> gw: 10.0.0.1 >>>>> >>>>> Windows: "bitsyX" appears in available networks when the two >>>>> units >>>>> are close together. Added "bitsyX" to >>>>> preferred network list ( only one ). >>>>> TCP/IP for the wireless card: >>>>> ip: 10.0.0.2 >>>>> bcast: 10.0.0.255 >>>>> gw: 10.0.0.2 >>>>> >>>>> When the planets align ( which is most of the time in our house ) >>>>> we can ping >>>>> the embedded computer from windows. This is a relatively calm ( >>>>> radio signal ) >>>>> environment where only one other wireless network exists. >>>>> When we go to our test site ( lots of other wireless equipment in >>>>> the area ) we >>>>> run into connectivity problems ( cannot even ping the other >>>>> computer ). >>>>> The interesting thing is the imbedded computer "sees" lots of ap's >>>>> in and around the >>>>> general geographical region of the windows box. Although the >>>>> signal levels are in >>>>> the -70 to -80 range. The windows box is useless....as the >>>>> drivers don't appear to >>>>> tell you correctly what "networks" it can see or an accurate >>>>> signal level >>>>> ( it appears to cache them from when the computer's were close >>>>> together ). >>>>> Ok...so you can see our frustration. My direct questions are: >>>>> >>>>> 1. Could it be that setting up ad-hoc mode with no encryption is >>>>> allowing other >>>>> wireless devices in the area to "steal" one of my test >>>>> devices and thus not >>>>> allowing a connection? I thought it was sufficient to set >>>>> the ESSID to something >>>>> agreed upon and most likely unique. >>>>> >>>>> 2. Are there any nice tools for monitoring the real status of the >>>>> wireless >>>>> card on a windows box and monitoring what it can "see" in >>>>> real time? >>>>> >>>>> 3. Are there any standard configurations used in this type of >>>>> "bridge" >>>>> range tests? >>>>> BTW....we tested over Elliot Bay >>>>> ( Myrtle Edwards/Elliot Bay Park to Hamilton Viewpoint Park >>>>> in West Seattle ). 4 meters off the water. One panel antenna and >>>>> one omni. Also tried >>>>> both omni. Saw lots of networks over in Magnolia from West >>>>> Seattle ( all locked down ). >>>>> >>>>> Any pointers would be greatly appreciated, >>>>> >>>>> -R >>>>> >>>>> >>>>> -- >>>>> >>>>> "irreligous progressive liberal!" >>>>> >>>>> irreligious = "not controlled by religious motives or principles" >>>>> progressive = "favoring improvement, change, progress, reform" >>>>> liberal = "Not narrow or contracted in mind; not selfish" >>>>> >>>>> Sign me up for irreligious progressive liberal status right away, >>>>> these are all the things I've always wanted to be! >>>>> >>>>> -Alan Partridge >>>>> >>>>> Look! >>>>> I just want sharks with frikken laserbeams attached to their heads! >>>>> >>>>> >>>>> _______________________________________________ >>>>> Talk mailing list >>>>> [email protected] >>>>> http://seattlewireless.net/mailman/listinfo/talk >>>>> >>>> >>>> _______________________________________________ >>>> Talk mailing list >>>> [email protected] >>>> http://seattlewireless.net/mailman/listinfo/talk >>> >>> >>> >>> >>> >>> _______________________________________________ >>> Talk mailing list >>> [email protected] >>> http://seattlewireless.net/mailman/listinfo/talk >> >> >> >> >> > > _______________________________________________ > Talk mailing list > [email protected] > http://seattlewireless.net/mailman/listinfo/talk -- "irreligous progressive liberal!" irreligious = "not controlled by religious motives or principles" progressive = "favoring improvement, change, progress, reform" liberal = "Not narrow or contracted in mind; not selfish" Sign me up for irreligious progressive liberal status right away, these are all the things I've always wanted to be! -Alan Partridge Look! I just want sharks with frikken laserbeams attached to their heads! _______________________________________________ Talk mailing list [email protected] http://seattlewireless.net/mailman/listinfo/talk