design

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994 links - and 5 categories

Antennas : Feed Lines : Choke
  • Choke balun - Essentially, a choke balun is designed to 'divorce' your antenna from the feed line. if your feed line is coaxial cable then you don't want it to be part of your antenna. you want to be able to deliver all your power to the radiator itself, i.e. 'the antenna'. a choke balun does this admirably
    [ Hits: 275 | Votes: 11 | Rating: 7.27 ]
Antennas : Helical
  • A 16 Turn S-Band Helix - This design represents the smallest practical antenna for Oscar-13 mode-S. Perfect beacon reception at all times is possible, and acceptable SSB even at 43,000 km range.
    [ Hits: 8625 | Votes: 4 | Rating: 7.50 ]
  • 13 cm Helix Antenna  pop - Here is the design of a 2.4 GHz antenna that is ideal for amateur satellite communications. This antenna is easy to assemble because the design itself tolerates inaccuracies in the construction without really affecting performance.
    [ Hits: 63425 | Votes: 69 | Rating: 5.83 ]
Antennas : J-Pole
  • Design your Own Super J Pole - a Javascript for calculating the lengths of tubing to be used for the construction of a Super J-Pole.
    [ Hits: 7504 | Votes: 14 | Rating: 5.29 ]
Antennas : Mobile
  • HF Mobile Antenna HB9ABX - Most efficient hf mobile antenna, This mobile antenna is designed for all HF bands from 10 to 80 meters an proved to be very efficient in my travels in South America on 15 and 20m for contacts to Europe and within South America.
    [ Hits: 5028 | Votes: 9 | Rating: 7.79 ]
Antennas : WiFi
  • Helical Antenna for 2.4 GHz and 802.11b - The following page details construction of a Helical antenna based on the superb design by Jason Hecker.
    [ Hits: 5144 | Votes: 6 | Rating: 7.17 ]
  • How to build a tin can waveguide antenna  pop - Looking for an inexpensive way to increase the range of your wireless network? A tin can waveguide antenna, or Cantenna, may be just the ticket. This design can be built for under $5 U.S. and reuses a food, juice, or other tin can.
    [ Hits: 37164 | Votes: 44 | Rating: 7.42 ]
  • Pringles Yagi Antenna - Design and build a Pringles Yagi antenna for 2.4Ghz.
    [ Hits: 7810 | Votes: 7 | Rating: 7.29 ]
  • 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.
    [ Hits: 9098 | Votes: 4 | Rating: 6.00 ]
  • 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.
    [ Hits: 36235 | Votes: 66 | Rating: 5.49 ]
Manufacturers : Antenna Parts
  • The KO6YD Screwdriver Antenna Memory - The Screwdriver Antenna Memory (SAM) product is designed to enhance the mobile antenna commonly called the "Screw Driver". It replaces your current control unit and provides an automated memory feature that eliminates the visual coil tuning method commonly used.
    [ Hits: 2674 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Electronic Components
  • Xtal Set Society, Inc - The society publishes several books about crystal radio. Sell crystal set projects, tips for crystal radio design, ham radio kits, radio parts and common radio electronic components
    [ Hits: 3229 | Votes: 7 | Rating: 7.64 ]
Manufacturers : Parts and Surplus
  • Sunstone Circuits Priority listing - Sunstone Circuits is your easiest source for quoting and ordering printed circuit boards online. We are three respected brands in one: PCBexpress quickturn boards, PCBpro.com full-featured and design-checked boards, and PCB123 design software.
    [ Hits: 506 | Votes: 3 | Rating: 8.00 ]
Manufacturers : Towers and Accessories
  • Rotating Tower Systems - Using our components you can build a rotating tower with greater capability than 3-4 static towers. A rotating tower allows common rotation of HF stacked arrays, VHF and UHF arrays, and antennas mounted at optimum heights. Component design also allows tower shunt loading and end support for wire antennas
    [ Hits: 1205 | Votes: 3 | Rating: 6.33 ]
Operating Modes : Meteors
  • F5VLB amateur radio astronomy station Priority listing - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.
    [ Hits: 1334 | Votes: 3 | Rating: 10.00 ]
Shopping and Services : T-shirts
  • MrHamRadio.com - Custom Printed T-Shirts - Custom Design T-Shirt with No Minimum order (you can buy just 1) and NO Setup Fee. Will transfer your Favorite Images from JPEG's and E-mail attachments and from photo prints to Custom T-shirts with unbelievable Crispiness and Clarity of true Color Reproduction. Our image transfer paper is 11.5" x 8" heavy duty industrial grade.
    [ Hits: 943 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Batteries Technical Reference : Electronics
  • Delabs technologies Product Design and Engineering - Around 200 electronic circuits in pdf format or images, There are also over 1000 links to useful electronics, freeware, open source websites. There are some 100 useful documents, software and pcbs too. Mainly industrial electronics, instrumentation. Covers Various aspects of electronics and basics of circuit design.
    [ Hits: 611 | Votes: 2 | Rating: 7.00 ]
Technical Reference : SWR Meters
  • Prototype SWR meter for 2.45Ghz - Testing antenna's is a lot easier if you have a good swr meter this is a prototype of a design by g7eyt.
    [ Hits: 9154 | Votes: 8 | Rating: 6.13 ]
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