On Sat, 28 Mar 2009 12:55:40 -0600, msg wrote:

Those are not spectrum analyzers. I am interested in talking with anyone
who has purchased the Airsleuth spectrum analyzer, which is uses HomeRF2
NICs, to learn about installation details you encounter. Details of the
product are he
http://www.NutsAboutNets.com/perform...umanalyzer.htm

(404. Page not found) Try instead:
http://www.nutsaboutnets.com/performance-wifi/products/product-airsleuth-wifi-spectrum-analyzer.htm

Moderately expensive Wi-Fi spectrum analyzers are common:
http://www.metageek.net (Wi-Spy)
http://www.bvsystems.com (Bumblebee)
http://www.airmagnet.com/products/spectrum_analyzer/
There are also some based on a Proxim FHSS PCMCIA card (which doesn't
work using XP or Vista).

You can also build your own:
http://www.wireless.org.au/~jhecker/specan/
http://www.nitehawk.com/rasmit/sa50.html
Note that you really don't need to build or buy a spectrum analyzer
that covers from 0.1 to 6GHz to see Wi-Fi. You only need something
that works up to perhaps 500MHz. Precede that with a local
oscillator, mixer (downconverter), preamp, and filter, to cover the
desired frequency range. In other words, buy the complicated IF and
display section and build your own front end. There will be some
mixing artifacts, but they're fairly easy to detect. If you want
better results (i.e. better dynamic range fewer spurs), a real
spectrum analyzer is far more useful. Fluke, Tek, Agilent, Anaritsu,
etc all make portable devices in the $3,000 and up price range.

As for the demise of classical music FM stations, in the Monterey Bay
area, we have KBOQ:
http://www.kbach.com
In the SF Bay area, there is KDFC:
http://www.kdfc.com
Some of the college stations play classical music, but not full time.


--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558