design

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Search Results for "design"

980 links - and 5 categories

Antennas : 2M
  • A Collapsible 2-Element Delta Quad - This easy-to-build and inexpensive 2 meter antenna is also made to store easily. It's designed for hand held use, so it's great for fox hunting! By Charles Scharlau, NZ0I
    [ Hits: 2626 | Votes: 3 | Rating: 6.50 ]
  • The Little Stick Antenna  pop - The Little Stick antenna is an aluminium version of the Vertical Bazooka design which was made from coax.
    [ Hits: 30863 | Votes: 4 | Rating: 2.00 ]
Antennas : 6M
  • Hex Beam for 6 meters - This is a hex beam designed for six meters. It has three elements with a turning radius of 54 inches. This antenna can be built from low cost materials available from the local hardware store. By WB3BEL
    [ Hits: 3623 | Votes: 4 | Rating: 6.25 ]
Antennas : Antenna Calculators
  • C-Pole antenna calculator - Based on the original design by Brian Cake, KF2YN this online calculator let you find the correct dimensions for a cpole antenna
    [ Hits: 2819 | Votes: 4 | Rating: 3.25 ]
Antennas : Feed Lines
  • L Match ATU for QRP - The L match is designed for the matching of random and long wires and should not be mounted in a metallic box/case, i used a small plastic food container which was the most expensive part of the project.
    [ Hits: 4630 | Votes: 7 | Rating: 7.00 ]
Antennas : Receiving
  • Bicone antenna - This antenna is a simple double bowtie biconical dipole design. It was designed as a broadband scanner antenna resonant on the 2 meter ham band.
    [ Hits: 2607 | Votes: 1 | Rating: 8.00 ]
Antennas : Vertical
  • 160 80 40 Meter Vertical Array - A 6-element vertical array which is designed for 40 and 80 meter operation, and receive-only operation on 160 meters by W8WWV
    [ Hits: 2105 | Votes: 2 | Rating: 7.00 ]
Antennas : WiFi
  • Do-It-Yourself Wireless Antennas - Your guide to wireless antennas, how to build a wireless antenna without spending much money The Pringles Cantenna, Coffee Can Antenna, Parabolic Reflector and Antenna Designs. Combine a homemade Tripod Mount with an inexpensive Pistol Grip and go Wardriving.
    [ Hits: 10811 | Votes: 10 | Rating: 6.30 ]
Manufacturers : Antenna Masts and Mounts
  • Super Bertha - Superbertha is an aesthetic, rotating monopole, custom designed and built specifically to fit your needs. a superbertha can be designed to any height you need or desire. there are many benefits of a superbertha, versus a standard guyed tower.
    [ Hits: 2183 | Votes: 2 | Rating: 5.00 ]
Manufacturers : Antenna Parts : Aluminium Tubing
  • Alfiniti Aluminium products - Custom assemblies, complex products, versatile applications… no matter what your challenge, we can design a solution for it.
    [ Hits: 662 | Votes: 1 | Rating: 10.00 ]
Manufacturers : Antennas : HF
  • Dannex - Swedish manufacturer of broadband antennas designed for multi frequency, medium and long range communication. No tuner required.
    [ Hits: 1330 | Votes: 1 | Rating: 10.00 ]
Publications : RF Foundamentals
  • Phase Noise. - This is perhaps the most important parameter in many oscillators and it deserves an in-depth discussion on what it is, how it affects a system and how it can be minimised in an oscillator design.
    [ Hits: 361 | Votes: 0 | Rating: 0.00 ]
  • RF Circuit design basics - Ebook by Akira Matsuzawa Tokyo Institute of Technology, Building blocks in RF system and basic performances, Device characteristics in RF application , Low noise amplifier design, Mixer design and Oscillator design
    [ Hits: 944 | Votes: 1 | Rating: 1.00 ]
Software : DSP
  • NBEMS - The Narrow Band Emergency Messaging System (NBEMS) for Windows is a suite of software programs designed for point-to-point, fast, error-free, emergency messaging up to or over 100 miles distant, and takes up a very minimum of frequency space on the ham bands, leaving more space for other ham activites.
    [ Hits: 1030 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Amplifiers
  • TANKIT Priority listing - A free design aid for vacuum tube linear RF power amplifiers. Determine plate circuit operating parameters and design pi or pi-L tanks quickly and easily.
    [ Hits: 1697 | Votes: 1 | Rating: 10.00 ]
Technical Reference : Components : Toroids
  • Inductor Design Software - RF toroid - A free too designed to assist in the selection of iron and alloy powder cores. RF toroid calculate the location of the Self resonate frequencies for series and shunt inductors.
    [ Hits: 5019 | Votes: 42 | Rating: 4.59 ]
Technical Reference : Filters
  • Second-Harmonic-Optimized Low-Pass Filters - Sometimes we need a little more output filtering than traditional designs offer. Look at a new filter that can give you that extra boost. QST article by W3NQN
    [ Hits: 642 | Votes: 0 | Rating: 0.00 ]
  • 500 KHz Low Pass Filter - This article describes a shielded low pass filter with a cut off frequency of about 500 KHz. It is built with components suitable for receiving, and was designed to use in front of a low frequency receiver for LOWFER work.
    [ Hits: 1051 | Votes: 8 | Rating: 3.00 ]
Technical Reference : Morse Keys
  • RF Actuated Keying Monitor - Battery-powered monitor designed to provide an audible indication of keying for those whose rigs lack a CW sidetone
    [ Hits: 245 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Repeater
  • A reliable VOX PTT circuit - This VOX PTT has been designed with Echolink in mind, but it will work equaly as well with repeaters
    [ Hits: 1537 | Votes: 1 | Rating: 1.00 ]
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