Re: Question on range testing
Robert Hubley <[email protected]>
| Newsgroups | gmane.network.wireless.seattle.general |
|---|---|
| Organization | Institute for Systems Biology |
| Message-ID | <[email protected]> |
The omni's are vertically polarized. Would you recommend mounting the antenna 90 degrees ( sideways ) or locate a horizontally polarized antenna?? 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 -- "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