http://cgi.ebay.com/Tektronix-2754-50kHz-21GHz-RF-Spectrum-Analyzer-Tested_W0QQitemZ390031649077QQcmdZViewItemQQptZBI_Analyzers?hash=item390031649077&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1308%7C301%3A1%7C293%3A1%7C294%3A50
http://cgi.ebay.com/HP-8593E-Spectrum-Analyzer-9kHz-22-GHz-Opts-4-41_W0QQitemZ370160713052QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item370160713052&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A1%7C293%3A1%7C294%3A50 http://cgi.ebay.com/Tektronix-492-50kHz-40GHz-Spectrum-Analyzer-NICE_W0QQitemZ290296909236QQcmdZViewItemQQptZBI_Analyzers?hash=item290296909236&_trksid=p3286.c0.m14&_trkparms=72%3A1205%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318%7C301%3A0%7C293%3A1%7C294%3A50 Oh heck, there are nearly 400 on ebay right now. I have both a Berkly Varitronics Yellow Jacket (over prices but easy to use and very portable) and an Advantest (ex Sprint Cellular unit) that'll do 9k through 8g. They don't get used very often, but when they do... I don't know how a guy can run without one these days. Oh yeah, you can always rent one from Rentelco. laters, marlon ----- Original Message ----- From: "RickG" <[email protected]> To: "WISPA General List" <[email protected]> Sent: Sunday, February 22, 2009 8:26 PM Subject: Re: [WISPA] tower issue >A spectrum analyzer is a good idea. I tried and wasnt impressed with >wi-spy. > Is there anything else inexpensive that will analyze the spectrum? > Thanks! > -RickG > > On Sun, Feb 22, 2009 at 11:22 PM, Phil Curnutt <[email protected]> wrote: > >> It looks just like you described. Get a spectrum analyzer or a wi-spy >> and >> check it out. Chances are though you won't be there when it is >> happening. >> >> Phil >> >> On Sun, Feb 22, 2009 at 9:12 PM, RickG <[email protected]> wrote: >> >> > I agree but such a sudden change? I mean like day & night. Interesting >> > to >> > contemplate though. What does interference look like if IT is affecting >> > a >> > tower? >> > -RickG >> > >> > On Sun, Feb 22, 2009 at 11:08 PM, <[email protected]> wrote: >> > >> > > Never assume a problem is ever interference no matter how rural you >> are. >> > > This is one of the biggest problem I see people are doing. >> > > >> > > /Eje >> > > Sent via BlackBerry from T-Mobile >> > > >> > > -----Original Message----- >> > > From: RickG <[email protected]> >> > > >> > > Date: Sun, 22 Feb 2009 23:04:44 >> > > To: WISPA General List<[email protected]> >> > > Subject: Re: [WISPA] tower issue >> > > >> > > >> > > I agree with you and actually intend on replacing it. But, I doubt >> > > it's >> > > related since this setup has been running on this particular tower >> since >> > > 2004 (I bought the company this way). Also, it is set up on several >> > others >> > > with no issues. I failed to mention these towers are in very rural >> > > locations >> > > so I doubt there is any interference. >> > > >> > > -RickG >> > > >> > > On Sun, Feb 22, 2009 at 10:34 PM, Marlon K. Schafer < >> > [email protected] >> > > >wrote: >> > > >> > > > Not sure if it's related or not, but high gain omni antennas are >> > usually >> > > a >> > > > great big no no. They tend to send more signal UP than in the >> > direction >> > > of >> > > > the customers. >> > > > >> > > > I'd replace it with an 8 or 9 db unit just on principal. You'll >> > probably >> > > > find that most customers will actually get a BETTER signal. >> > > > >> > > > laters, >> > > > marlon >> > > > >> > > > ----- Original Message ----- >> > > > From: "RickG" <[email protected]> >> > > > To: "WISPA General List" <[email protected]> >> > > > Sent: Sunday, February 22, 2009 7:23 PM >> > > > Subject: [WISPA] tower issue >> > > > >> > > > >> > > > > OK, here a good one! (aka, how I spent my weekend in a blizzard!) >> > > > > >> > > > > One of my towers has a single WARP/StarOS connected to a 5GHz >> > > > > grid >> > for >> > > > > backhaul and a 15dBi omni for the local connections. >> > > > > On Saturday, after making some small changes, I rebooted it and >> > > > > it >> > > would >> > > > > not >> > > > > allow me to connect via wireless any longer - or my customers :( >> > > > > So, I go to the tower, connect up via ethernet and everything is >> > > > > a >> > > usual >> > > > > but >> > > > > I see all associations but only a few client have ip addresses. I >> can >> > > > ping >> > > > > the few clients but the packet loss is huge 80-90%. I then reload >> my >> > > > > backup >> > > > > but still get the same thing. I try changing channels, but still >> the >> > > > same. >> > > > > I >> > > > > then systematically begin replacing parts starting with the radio >> > card. >> > > > > Eventually, I replaced EVERYTHING but still have the problem. One >> > note: >> > > > > occasionally, twice of maybe three times, after a reboot, all >> > > > > came >> > back >> > > > > normal. The third time, I left well enough alone for now but of >> > course, >> > > > > you >> > > > > know what will happen the next time I reboot. >> > > > > >> > > > > Any ideas??? >> > > > > >> > > > > -RickG >> > > > > >> > > > > >> > > > > >> > > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > > > WISPA Wants You! Join today! >> > > > > http://signup.wispa.org/ >> > > > > >> > > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > > > >> > > > > WISPA Wireless List: [email protected] >> > > > > >> > > > > Subscribe/Unsubscribe: >> > > > > http://lists.wispa.org/mailman/listinfo/wireless >> > > > > >> > > > > Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > >> > > > >> > > > >> > > > >> > > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > > WISPA Wants You! Join today! >> > > > http://signup.wispa.org/ >> > > > >> > > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > > >> > > > WISPA Wireless List: [email protected] >> > > > >> > > > Subscribe/Unsubscribe: >> > > > http://lists.wispa.org/mailman/listinfo/wireless >> > > > >> > > > Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > >> > > >> > > >> > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > WISPA Wants You! Join today! >> > > http://signup.wispa.org/ >> > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > >> > > WISPA Wireless List: [email protected] >> > > >> > > Subscribe/Unsubscribe: >> > > http://lists.wispa.org/mailman/listinfo/wireless >> > > >> > > Archives: http://lists.wispa.org/pipermail/wireless/ >> > > >> > > >> > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > WISPA Wants You! Join today! >> > > http://signup.wispa.org/ >> > > >> > > >> > >> -------------------------------------------------------------------------------- >> > > >> > > WISPA Wireless List: [email protected] >> > > >> > > Subscribe/Unsubscribe: >> > > http://lists.wispa.org/mailman/listinfo/wireless >> > > >> > > Archives: http://lists.wispa.org/pipermail/wireless/ >> > > >> > >> > >> > >> > >> -------------------------------------------------------------------------------- >> > WISPA Wants You! Join today! >> > http://signup.wispa.org/ >> > >> > >> -------------------------------------------------------------------------------- >> > >> > WISPA Wireless List: [email protected] >> > >> > Subscribe/Unsubscribe: >> > http://lists.wispa.org/mailman/listinfo/wireless >> > >> > Archives: http://lists.wispa.org/pipermail/wireless/ >> > >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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