I'll tell you how - money. How can a small guy buy or rent at those prices. Surely, in the days of electronics revolution there is something more economical? Thanks! -RickG
On Mon, Feb 23, 2009 at 1:05 AM, Marlon K. Schafer <o...@odessaoffice.com>wrote: > > 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" <rgunder...@gmail.com> > To: "WISPA General List" <wireless@wispa.org> > 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 <pcurn...@gmail.com> > 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 <rgunder...@gmail.com> 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, <e...@wisp-router.com> 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 <rgunder...@gmail.com> > >> > > > >> > > Date: Sun, 22 Feb 2009 23:04:44 > >> > > To: WISPA General List<wireless@wispa.org> > >> > > 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 < > >> > o...@odessaoffice.com > >> > > >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" <rgunder...@gmail.com> > >> > > > To: "WISPA General List" <wireless@wispa.org> > >> > > > 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! 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