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Query: construction
Links: 342 | Categories: 2
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Here is a simple, self-contained beacon which can run a few milliwatts or as much as a watt depending on choice of amplifier and supply voltage. -
Photo construction manual of a portable antenna made with two heavy duty whips by buddipole. In this article has been implemented a 50 MHz portable dipole. -
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A home made ZS6BKW multiband antenna includes the construction of the plastic support for the ladder line -
Air conditioning soft copper tubes are perfect for loop construction. If you want to try a loop you must have an air variable capacitor or a vacuum variable capacitor. Article by PY1AHD -
Safety tips and troubleshooting ideas by K2ZS -
An unconventional antenna family, the VHF/UHF Zigzag Dipole Antennas. Design, theory and practical construction, transformation and balancing with a half wave balun. -
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The T-Match with its balanced feed point is one method of feeding a Balanced Dipole. -
This page provides information on building a short dipole antenna for the 60 meter tropical band. It includes details on the construction of the antenna using 12 meters of wire divided into four sections. The page is aimed at experienced shortwave DXers and radio hobbyists looking to improve their antenna setup for better DXing performance. -
Provide service, quality home construction projects, travel antennas, masts and bases, hf and vhf amplifiers, low pass filters and z-match tuners -
Key facts about how to solder, how to solder wire, how to solder pcb's, and including general soldering techniques and the best ways of making good solder joints for electronic circuits and construction. Includes video -
This method of construction can be used on most UHF through \"low\" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands -
This is a presentation used at OVARC on the LindenBlad antenna construction. The presentation cover several topics about this antenna, from the basic antenna design, to the guide on how to contruct a custom lindenblad antenna for the 2 meters band and and 70 centimenters band. -
Introduction to Shortwave Antennas. Understanding Shortwave Radio Listening and Antenna Design and Construction -
This website explains coverage and construction for our repeaters. Includes useful links and an insight into the Ham community in Rhode Island -
This project describes the construction of a real CW QRP keyer with a small microcontrolle -
Who needs a GaAsFET? Tuning, constructions and Packaging by Paul Wade -
The author who works successfully via EME on this band wants to describe his own yagi design and give some of hints for the construction. by Heinrich F. Reckemeyer, DJ9YW -
This is a schematic drawing of a project for the construction of a portable mast that can easily be made with PVC pipes. -
This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter. -
The page provides detailed instructions on how to build a 60 meter End Fed Half Wave Antenna Tuner, with large pictures and diagrams. It is aimed at amateur radio operators looking to construct their own antennas for the 60 meter band. -
A presentation of the Yagi Antennas, and other interesting tid-bits by Brian Mileshosky. The document provides an in-depth exploration of the Yagi-Uda antenna, detailing its historical development, design principles, and performance characteristics. Originally described in the 1920s, the Yagi antenna features a driven element and parasitic elements, including reflectors and directors, which collectively determine its behavior. The document highlights how element lengths, diameters, and spacing influence gain, impedance, and directivity. It also discusses the antenna's reciprocal nature and presents data on typical gain values for various element configurations. Additionally, the text covers practical considerations, such as the construction of a "Tape Measure Yagi" for amateur use, and touches on related antenna types like dipoles and their application in Near Vertical Incident Skywave (NVIS) communication. -
The page provides detailed information on a compact two-element yagi antenna, also known as the Moxon rectangle, specifically designed for the 17 meters band. It includes construction details, evolution history, performance data, and comparison with a 1/2 wave dipole antenna. -
The construction principles for open-sleeve elements in antennas -
Construction details for a simple but effective antenna for 2.45Ghz wireless lan use. -
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About horn antennas, dimensions for construction of a series of microwave horns -
Pictures of a homemade monoband linear amplifier for 160m band powered by 3 x QB5/1750 -
Crystal receivers, construction projects and plans, old-time crystal sets, hints, crystal receiver store. -
MultiPig+ CW Transceiver Kit Construction -
The Hexbeam is a great little antenna! It should be high on your list of options if you want a design that can be multi-banded, exhibits useful gain and directivity, is very lightweight, has a small turning radius, and which lends itself readily to Do It Yourself construction. -
Design and construction of a mini satellite-antenna rotator. It used some small DC motors and a novel combination of 3D magnetometers and accelerometers to provide absolute azimuth and elevation feedback. -
Furnishing Quality Tools & Equipment For Construction and Maintenance of Above and Underground installations. -
Six meters is a great band for home built Yagis. The elements are reasonably small, but not so small that building tolerances are critical. With careful construction and detailed instructions, it is certainly feasible to build no-tune Yagis up to 432 MHz. -
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Construction of 28 MHz to 144 MHz Transmitting and Receiving Converter by KP4MD -
balloon buoyancy, balloon materials, and antenna construction materials. -
K6BJ UHF MSF5000 Repeater Construction Log -
The webpage discusses metal fatigue in antenna elements for radio amateurs, offering construction tips and techniques. It covers theory, tricks, and the use of baluns and coils. -
If you like building good antennas, this one is for you. The J-pole is a slim, omnidirectional, half-wave antenna fed at the end through a quarter-wave shorted transmission line. Its predecessor is the famous Zepp antenna developed for the Zeppelin airship. -
Articles published by the Radio Society of Great Britain, basic principles, construction of a simple equaliser circuit -
23cm 1296 MHz Field Day Yagi Construction, a 26 element conventional-style design. Article with several pictures and detailed homebrewing instructions -
An homemade RF spectrum analyzer with full details on construction notes and planning. Includes block diagram, schematics and pictures -
RSGB article for beginners. How to build a dipole antenna, construction tips and correct setup of inverted-ve dipole antennas -
radio.McDougallsHome.net The Web site and Blog of Amateur Radio Station K7JM. Homebrew, Construction, Operating, and Discussion -
A homemade interface for any android device, allow to receive and trasmitt SSTV PSK RTTY from an android tablet based on the DD7LP original project include demo of a sample DIY kit. -
This article describes the construction of a high performance transmitter and receiver for SSB (voice) communication covering the 14MHz (20 meters) high frequency amateur radio band with output range 15 to 20 watts and a top audio sound quality both on transmit and receive. -
Building the Three-Element Hex Beam. A project and construction phase of an HF hex-Beam antenna using trees to hang the antenna and a Channel Master antenna rotator. -
This DIY vertical multi-band Windom antenna offers a practical and effective solution for amateur radio enthusiasts seeking a versatile and compact antenna for HF communications. Its simplicity of construction, multi-band capability, and favorable performance make it a valuable addition to any radio shack. The article provides detailed instructions on constructing the antenna and balun, along with diagrams and component specifications. Field tests demonstrated successful contacts with stations across Europe and North America on 14, 18, and 28 MHz. The antenna exhibited comparable performance to a W3DZZ dipole and outperformed a Cobweb antenna on 18 MHz. Low noise levels were observed, effectively suppressing background noise.