Re: Question on range testing
Matt Westervelt <[email protected]>
| Newsgroups | gmane.network.wireless.seattle.general |
|---|---|
| Message-ID | <[email protected]> |
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