design1012 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: 2650 | Votes: 3 | Rating: 6.50 ]
- The Little Stick Antenna
- The Little Stick antenna is an aluminium version of the Vertical Bazooka design which was made from coax.
[ Hits: 31397 | Votes: 6 | Rating: 1.83 ]
- 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: 3736 | Votes: 4 | Rating: 6.25 ]
- 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: 2821 | Votes: 4 | Rating: 3.25 ]
- Small Transmitting Loop Antenna Calculator
- A free online calculator for making all of the calculations required to design and build small transmitting loop antennas, also known as magnetic loops by 66pacific.com
[ Hits: 4460 | Votes: 14 | Rating: 8.07 ]
- 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: 4666 | Votes: 7 | Rating: 7.00 ]
- 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: 2707 | Votes: 1 | Rating: 8.00 ]
- 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: 2148 | Votes: 2 | Rating: 7.00 ]
- 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: 10830 | Votes: 10 | Rating: 6.30 ]
- 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: 2198 | Votes: 2 | Rating: 5.00 ]
- Alfiniti Aluminium products
- Custom assemblies, complex products, versatile applications… no matter what your challenge, we can design a solution for it.
[ Hits: 669 | Votes: 1 | Rating: 10.00 ]
- Swedish manufacturer of broadband antennas designed for multi frequency, medium and long range communication. No tuner required.
[ Hits: 1356 | Votes: 1 | Rating: 10.00 ]
- 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: 387 | 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: 972 | Votes: 1 | Rating: 1.00 ]
- 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: 1049 | Votes: 1 | Rating: 10.00 ]
- 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: 1713 | Votes: 1 | Rating: 10.00 ]
- 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: 5107 | Votes: 42 | Rating: 4.59 ]
- 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: 1076 | Votes: 8 | Rating: 3.00 ]
- RF Actuated Keying Monitor
- Battery-powered monitor designed to provide an audible indication of keying for those whose rigs lack a CW sidetone
[ Hits: 275 | Votes: 0 | Rating: 0.00 ]
- 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: 1625 | Votes: 1 | Rating: 1.00 ]
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