Brian I agree with you if the system is not engineered correctly you will have a asymmetrical system but when done correctly is can be symmetrical, as an example system:
At the base 300mW radio plus a 11.2 dBi 120* antenna for a total of 36dBm EIRP, on the client side lets use a 100mW radio and a 15dBi 30* you have a balanced system. Sincerely, Tony Morella Demarc Technology Group, A Wireless Solution Provider Office: 908-996-7995 Fax: 908-847-0202 http://www.demarctech.com -----Original Message----- From: Brian Lloyd [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 14, 2004 9:20 AM To: [EMAIL PROTECTED] Subject: Re: [BAWUG] RE: 300mw? [EMAIL PROTECTED] wrote: > I agree with you on a basic setup but if a system is engineered > correctly, its very easy to have a balanced systems. The main benefit > to a 300mW/400mW (soon) radio is a lower gain antenna thus a larger > vertical beam width at the base station, this is NOT the best setup > for all applications but it does add additional options to the WISP > tool box. Jim has a very good point. If you have a much more powerful transmitter at the AP you will have an asymmetrical path. if one side has a 6db transmit advantage it also needs a 6db receive advantage in order to retain a reciprocal path (excluding noise issues). Yes, you can use higher transmit power and lower antenna gain to maintain the transmit field strength but that doesn't help the other guy reach you. I run into problems all the time with my APs where users can hear the AP (200mw) but the AP can't hear them reliably. The worst thing of all is an alligator radio. All mouth and no ears. It would be nice to have much better receive specs on the various radios. -- Brian Lloyd 6501 Red Hook Plaza [EMAIL PROTECTED] Suite 201 http://www.lloyd.com St. Thomas, VI 00802 +1.340.998.9447 (voice) +1.360.838.9669 (fax) _______________________________________________ BAWUG's general wireless chat mailing list [unsubscribe] http://lists.bawug.org/mailman/listinfo/wireless
