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30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna -
W4RNL tutorial on on inductively coupled (link-coupled) antenna tuners -
Icom PCR1000 driving program for Mac available at yahoo groups, login required. -
Put up the longest dipole you can fit, feed it with open wire line, connect it to the balanced output of your tuner and poof! Instant multiband antenna. Is life really that simple? -
A monoband yagi for 14 MHz a PDF article from 73 amateur radio magazine by AB4GX -
Band-pass filters can be critical components in competitive stations. This setup may help put your station on the map. -
Pre amplifier using a 2N5109 for the 160 meters band -
Build a spiderbeam from scratch for 20-17-15-12-10 meters band -
Schematic Manual of the 3 element Yagi antenna by ECO antenne -
K6ZB Bruce presentation of technologies to allow ham radio operate via internet -
Generating Morse code audio files from text input is the primary function of _MorseGen v1.2_, a utility designed for amateur radio operators. The software allows users to specify the tone frequency and words-per-minute (WPM) speed for the generated CW. A key feature is its ability to create a WAVE audio file containing the Morse code, which can then be used in various applications. The program also supports repeating the generated CW sequence at user-defined intervals, making it particularly useful for creating station identification signals or beacons. The practical application of this tool extends to automated station identification, especially for repeaters or digital mode gateways that require a CW ident. By producing a standard _WAVE file_, the output is compatible with most audio playback systems and software. This functionality provides a straightforward method for integrating custom Morse code messages into existing amateur radio setups, eliminating the need for external hardware keyers for simple identification tasks. The adjustable parameters offer flexibility to match specific operational requirements or personal preferences for CW characteristics. -
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The AMRAD Active LF Antenna. You can tune into LF activity with this easy-tobuild and erect active antenna. As a bonus, you get MF and HF coverage, to not to mention world-class performance -
This note describes a relatively small, but efficient, loop antenna initially created for portable operation. With suitable modifications, it can be adapted for fixed station use. In this age of CC&Rs, an antenna similar to this may very well be the answer to your problems. Have a look, be inspired, get out the torch / soldering iron and create your own version! -
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Moxons work great, and they take up less space than full size two element Yagis -
This attenuator is worth your attention. Built like the proverbial brick outhouse, it's one you can easily duplicate by N9SFX Pdf file -
A Comprehensive roundup of the most popular QRP transceiver kits on the market in recent years in PDF format -
A popular 2 meter antenna returns in an improved, easier to reproduce form, 2008 QST article -
A different approach can help you optimize attic-bound aerial by W6HPH -
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MorseMaker is an up-to-date replacement for the Morse Machine shown further down this page. It has been re-written using a different programming language and is now entirely 'stand-alone' requiring no run-time support files. This version also works with Windows XP and can use the soundcard but please note that, unlike its predecessor, it does not split the alphabet into smaller 'learning' blocks and does not incorporate the Morse reader. -
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6 element super duper moxon antenna for the 144 MHz, a modified HAARP Antenna projetc -
High speed silicn diodes work well as RF switches. This article describes how to use diodes for selecting two or more filters ARRL QST article by W1FB -
A half-sized Hentenna designed for unique performance in compact spaces. Initially built in 2003 for monitoring a local 146.97 MHz repeater from a basement shop, the antenna proved highly effective, operating at just 200mW. In 2005, it was adapted for use in a challenging river-bottom location, delivering reliable performance on a 2-meter band with 5W. Despite its compact size, the Forktenna demonstrated excellent results compared to a full-sized Hentenna, making it an intriguing option for many hams. -
A 40-meter antenna that provides good local and regional coverage during the day and good DX capability at night -
This note looks at the antenna and antenna model for the 40 meter Moxon Yagi designed by Dave Leeson, W6NL. The performance of the antenna, through the model, will be explored in several typical settings. -
Radial systems for elevated and ground mounted vertical antennas by SteppIR -
Designing moxon rectangles by equation and by model L. B. Cebik, W4RNL -
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A home made vertical polarized moxon antenna for 144 MHz, includes dimensions, antenna pattern, SWR and antenna gain plots by WB5CXC -
SSTV1 Modem software is an AFM modem that runs on the TAPR/AMSAT DSP-93 hardware platform that can be used to receive and transmit Slow Scan Television(SSTV) signals. -
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This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db. -
CW paddle made with a steak knife some simple hardware and a stainless steel fork -
A folded wire antenna for 160 meters as appeared on 73 amateur radio magazine june 1997 -
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A compact multiband wire antenna suitable for portable operations. -
This tutorial will set out the design stages required to design a theoretical microwave amplifier -
Build your own multi-band mobile ham antenna with a Hamstick -
If you want to interface the IC-746 Pro or any other Icom rig with a computer for rig control, an outboard CI-V CAT device is required. -
An efficient 2 meter antenna disguised as a TV Satellite dish. This vertically polarized horizontal slot antenna, cut into the reflector of a TV dish, might be the ultimate stealth antenna. -
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Article on radiation patterns of small loops, equivalent circuits of loop antenna, small loops as receiving antennas, ferrite loops -
ARRL comparison of HF transceivers, including Elekraft, TenTec,Icom, Yaesu and Kenwood recent transceivers based on QST product reviews -
Excel spreadsheet that help calculating dimensions of a high efficiency magnetic loop antenna for HF bands. Giving in input the loop perimeter, loop diameter and loop conductor will calculate electric characteristics, bandwidth, and efficiency -
Choosing the right antenna for you, by Lewis G. McCoy W1ICP -
This application note is designed to help the reader understand how balun transformers can be used in today's RF/Microwave communication applications.