URLS : Hyperlinked here
( http://manuka.orcon.net.nz
) for reference convenience
via
Stan. SWAN => s.t.swan@massey.ac.nz <= for Silicon Chip Nov. 2002 Wi-Fi
article
http://www.arrl.org/catalog/?item=8047 “ ARRL Antenna Book” 19th
Ed. American Radio Relay League ham
“bible”
www.antennas3.com “Antennas for all Applications” 3rd
Ed. Kraus and Marhefka The classic professionals text.
www.netstumbler.com “Netstumbler” and PDA version “Ministumbler” download site
alt.internet.wireless ( Usegroup: access via Google Groups ) for
helpful advise , experiences and opinion
www.oreillynet.com/cs/weblog/view/wlg/448 Pringle can antenna enhancement
www.wlan.org.uk/tincan.gif Tin can microwave antenna details
www.wlan.org.uk/simple_double_quad.gif Pictures and details of the basic “bow tie”
http://trevormarshall.com/biquad.htm Details of bow tie used with parabolic reflector
http://www.wireless.org.au/~jhecker/helix/helical.html Jason Heckers high gain helix
http://helix.remco.tk Helical cookbook
www.saunalahti.fi/~elepal/antenna1.html Cake tin homebrew short backfire antenna
www.seattlewireless.net/index.cgi/PigTail Sources for Orinoco Pigtail connectors
www.seattlewireless.net/index.cgi/MicroTVAerial
Very small 2.4GHz Yagi
www.hyperlinktech.com/web/connectors.html Microwave connectors listings and pictures
www.warchalking.org Warchalking background and news.
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Cats Whiskers/Pyjamas. Newcom
ers may have missed the pun, although granddads should be
happy. “Cats Whisker” classically
referred to a 1920s radio wave detector, used prior to the taming of modern
semiconductor diodes 40 years later. Early radio valves were costly, so many
home enthusiasts tuned in to MW radio signals via DIY “crystal sets” that used
a springy whisker of wire to probe the (rectifying) surface of a lead galena
crystal. Predictably, performance was often VERY touchy indeed…
Further close ups and exploded diagrams of
the “Kipper Can” sardine tin
bi-quad “Bow Tie” are at …
http://manuka.orcon.net.nz/wififi.jpg
, http://manuka.orcon.net.nz/wifibowt.gif
, http://manuka.orcon.net.nz/wifibiqd.gif
Harris
Technology ( www.ht.com.au) sell PCMCIA Avaya Gold ( 128bit WEP )Wi-Fi cards
( part # F2031) at just A$90 +GST. Extensive tests confirm these are indeed
just re branded Lucent/Agere/Avaya
Orinocos. Sensitivity is excellent.
Suitable “pigtails” however remain VERY costly
& elusive, with often only annoyingly short ½ m ones available. In
desperation, you may even consider “school boy wiring” a DIY “plug” as shown at http://manuka.orcon.net.nz/wifipigt.jpg
Maybe USA direct import Fleeman Anderson Bird (FAB) www.fab-corp.com ~A$50 for a convenient low loss 1½ m one.
Warchalking
has already gone mainstream, with a top Wellington NZ hotel proudly promoting
their CafeNet WLAN via a symbol set
into pavement tiles at the door. See => http://manuka.orcon.net.nz/wificook.jpg