wireless headsets

CardboardHorn - Seattle Wireless - A Cardboard Horn antenna for 802.11b

Dish 802.11 Wireless Networking Antenna - This antenna modification is for the IEEE 802.11b networking protocol that operates at 2.4 GHz. It can be scaled easily to the 5 GHz frequency used by IEEE 802.11a by simply scaling the dimensions on the feed can and the excitation antenna to 2.4/5 = 48% of the dimensions shown above.

2.4 Ghz double quad antenna  ^pop - An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain.

Pringles Yagi Antenna - Design and build a Pringles Yagi antenna for 2.4Ghz.

Building Helical Antennas - Seattle Wireless - Photos and comments on building an helical antenna for wifi

DirectionalWaveguide - Seattle Wireless - Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide. A waveguide is simply a tube, either rectangular or cylindrical in cross-section, that will carry a microwave radio signal with very low signal loss

PringlesCantenna - Seattle Wireless - The PringlesCantenna is an ultracheap Yagi-type directional antenna that can be built for under $10. The original Pringles Yagi was designed by Andrew Clap.

SardineCanAntenna - Seattle Wireless  ^updated - Sardine Can Antenna. is a BiQuad or Bi circle - wire length each side (8 x 1/4 waves ) 31 mm

DirectionalBiQuad - Seattle Wireless - A biquad is a fairly powerful antenna which is relatively easy to construct, with impressive performance for their size. A link greater than 5 miles can be made with a pair of these as a stand-alone antenna and a Prism2 100mW card, provided you keep coax short, and your line-of-sight is clear.

MicroTV Aerial - Seattle Wireless - Yagi antenna for 2.4Ghz band

2.4GHz Cubic Quad Antenna  ^pop - The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz range for 802.11 wireless LANs.

Wifi: Building Yagi Antennas - Example and resources of 2.4 Ghz yagi antenna plans

Stone Vintage Radio - Antique Radios, Wireless, Crystal Sets, Tubes, and Valves - Stone vintage radio describes early radio from marconi to the 1960s. its covers antique radio, wireless, tubes, valves, crystal sets, and battery radios. included in the virtual museum are hundreds of pictures, images, and descriptions of antique radios, articles, faq, sell, and buy a radio.

Scott's Crystal Radios and Antique Headphones - Dedicated to Crystal Radio enthusiasts, both users and collectors. Lot of info on antique headphones,crystal radios,earphones,headsets.

The CC-AWA - Carolina's Chapter of the Antique Wireless Association

Houston Vintage Radio Association - A non-profit organization seeking to preserve the history of the development of wireless communication by encouraging the acquisition, restoration, preservation and exhibition of antique wireless and radio apparatus

Northwest Vintage Radio Society - Dedicated to the Preservation and Enjoyment of Vintage Radio and Wireless Equipment Serving the greater Portland, Oregon area

Vintage Radio and phonograph society - Dedicated to the historical preservation of early wireless phonograph

Antique Wireless Association - Carolinas Chapter of the Antique Wireless Association Inc. "CC-AWA"

SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.

Cantenna Wireless Booster Antenna - Extend the range of wireless network or connect to other wireless networks in neighborhood with your own wifi antenna.

Radio Frequency Systems - RFS is a global designer and manufacturer of cable and antenna systems plus active and passive RF conditioning modules, providing total-package solutions for wireless infrastructure.

Wireless Field Day Log Program - A reliable logging system for Field Day based on wireless networking. Freeware, runs on macintosh, linux and windows

G3YXM 500 W solid state amplifier - HF 500 Watt power amplifier schematics by G3YXM

G3YXM 500 W PA - 40-80-160 meter band linear amplifier