A couple of weeks ago I did some experiments in which I intentionally cross-polarized by varying degrees to degrade the signal between an aPPO and an aBO. When I had the antennas cross polarized 65* the RSSI said -21 and the LQ was 90%.... but thruput was only 74K. With the antennas polarized correctly, the RSSI had been -10 and the LQ 100% with 3.56meg thruput.
Those RSSI and LQ numbers have always been a mystery to me. They really seem to have nothing to do with what sort of thruput you are going to get... they seem to be there just to entertain us... <g> Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Blazen Wireless Sent: Saturday, November 15, 2003 10:16 AM To: [EMAIL PROTECTED] Subject: Re: [smartBridges] RTS/CTS and Tx power settings Here is a customer who was working great about 2 weeks ago and today they have a RSSI of about 90 and link of about 85% according to the APPO its associated to, I did a ping to the PC direct and this is what I get! Pings as high as 1242!!!! only one user on right now actually downloading I kicked him off and same thing no change? I tired channel settings and just about everything else this morning and nothing is bringing this customer back to life? Any ideas? seems like they have GREAT signal this is about the signal strength to almost all my clients near and far so I am really confused?? Max /Min/ Avg 66.80.227.47 130 114 101 66.80.227.47 270 114 101 66.80.227.47 1242 114 101 66.80.227.47 491 114 101 66.80.227.47 220 114 101 66.80.227.47 351 114 101 66.80.227.47 520 114 101 66.80.227.47 251 114 101 66.80.227.47 250 114 101 66.80.227.47 551 114 101 66.80.227.47 250 114 101 ----- Original Message ----- From: "Dave Covert (HWC)" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, November 15, 2003 8:09 AM Subject: RE: [smartBridges] RTS/CTS and Tx power settings Amen to that... we do the same thing... you can't have your close guys pumping huge amounts of signal and expect to hear the further ones ask for a RTS at a whisper. We use antenna gain selection and power settings to try and have every CPE on an AP arrive at simular strengths. Dave -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Nimesh D. Parikh Sent: Saturday, November 15, 2003 9:32 AM To: [EMAIL PROTECTED] Subject: [smartBridges] RTS/CTS and Tx power settings I recently heard a tip from a large operator. They are having good success with the equipment. They adjust the CPE's Tx power such that the signal strength received by the aPPO from all CPEs is within 3dB. According to them, balancing the signal power seems to go a long way to solve the Hidden node issue. We have not tried this but sound interesting and hence passing it on. Nimesh sB -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Blazen Wireless Sent: Saturday, November 15, 2003 11:20 PM To: [EMAIL PROTECTED] Subject: Re: [smartBridges] Why not to use smartBridge... Dave I just tried these settings and it seemed to make a HUGE difference so far, I have one user online this morning pulling about 800Kbps and tried pinging other clients and radios and latency is a lot lower. I always thought polling was worse for wireless and affected latency more in a bad way? ----- Original Message ----- From: "Dave Covert" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, November 15, 2003 6:31 AM Subject: RE: [smartBridges] Why not to use smartBridge... I agree with you on this one... we offer 512/1meg services to SOHO and resi... area is a patchwork of DSL/cable/dialup... We are doing OK for now, but I know that slow downs are looming in our future. We know from testing that most all of our clients (sB and non-sB) are signaling to the tower (all sB) at 11mbps and are getting a thruput to our NOC somewhere around 3.5 mbps. We use a frag of 1024 and a RTS/CTS of 256, almost turning 11b into a polling system. I have a tendency then to look at each 2.4 channel as a single 3.5 meg pipe. I know it takes a fair number of clients to fill up such a pipe. Thing is, I have heard that each aPPO only handles 30-50 clients. Is that due to some lack of processor/firmware power? Is there an AP that could handle more clients on the same 3.5 meg 'air pipe'? Dave The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] The PART-15.ORG smartBridges Discussion List To Join: mailto:[EMAIL PROTECTED] (in the body type subscribe smartBridges <yournickname> To Remove: mailto:[EMAIL PROTECTED] (in the body type unsubscribe smartBridges) Archives: http://archives.part-15.org
