> > Too bad the noise floor in most parts the bay area is at around -95 -> > -85 these days...
This is SOO true! The minute an outdoor antenna is connected suddenly the seemingly "quiet" noise floor becomes a screaming mess of every 2.4 GHz emitter in use. They each have a unique signature, but summed up it becomes pretty flat from 2400 to 2483, then suddenly drops off. The drop off at 2483 is a dead giveaway that it is caused by 2.4 G equipment. Also- ATHEROS comms, INC has an experimental license for 2.4 G WC2XLH operating in "Los Altos, Sunnyvale, Mt. View, and San Jose" since 2000. Anyone experiencing interferance from them can file a complaint against the FCC since their license is on a non-interferance basis with other co channel users. I can't imagine why they would apply for an experimental license for a license free spectrum unless they intended to run higher power levels or wider deviation in development of their product. Perhaps someone could explain (who works for Atheros) why the 2000 filing of WC2XLH. Just when some of us were thinking 5.6-5.8 was the place to go, some phone mfgr. started wasting bandwidth up there with a new 5.8 Ghz cordless - that's the last thing we need. Has anyone heard of network link hardware using the "public" spectrum that sits right in the middle of the PCS band (1800-1900 Mhz)? (SEE http://wireless.fcc.gov/auctions/data/bandplans/pcsband.pdf ) Every carrier has a High and Low band of frequencies - where they meet in the middle there is a single band of spectrum that belongs to the public. (Home Depot, for example, uses this spectrum for their in-plant cordless phone system - privately owned, high power phones with multiple talk paths and handsets). It would seem that an 802.11b'ish digital radio LAN could be put in that band just as easily and with less congestion than 2.400-2.483 has today. The power amplifiers are also easier and cheaper to build in that frequency range than 5.8 Ghz. Since 802.11b'ish designs are single frequency, time division duplexing, they could easily make use of a block of spectrum only 6 Mhz wide. I've got enough torn open pcmcia cards kicking around the lab that I'm tempted to modify a couple to use 1910 to 1930 Mhz just to see how they perform in a relative quiet zone. -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
