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Sponsor of the Spartan Sprints are two-hour gatherings held the first Monday of every month. -
The Badger Contesters is a club of like-minded hams who are interested in VHF/UHF/SHF weak signal communications. Our geographic focus is Wisconsin, however hams in Northern Illinois, Michigan's UP, and Eastern Minnesota are welcome to join us. -
Windows shareware contest log program for the CQ 160 meters contest -
Reviews Summary for Cushcraft A3S at eham.net -
All the essentials about the Dip Meter or Grid Dip Oscillator used for many RF measurements including detecting resonance, locating RF emissions, and making many RF measurements. -
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Pirate radio stations broadcasting on shortwave radio. Chatrooms, pirate radio forums, shortwave pirate station loggings, information on pirate radio broadcasting, pirate FM broadcasting. -
The Garden City Amateur Radio Club (GCARC) is a non-commercial association of Amateur Radio Operators in Garden City, Michigan and the surrounding area -
Living in a no antenna deed restricted community sounds bad for a HAM, but it means you just need to be more creative. I have found this will not stop your DXCC activities and many of my local HAM club members will agree -
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K2Net is a remote operation windows software for the Elecraft K2, and allow remote control over internet or wi-fi networks by G4ILO -
A multi band antenna for HF band capable to operate from 10 to 80 meters band depending on wire lenght loaded with a small inductance neat the feed end. -
This online calculator will give as output the Inductance L of a coil, including the total lenght of the wire needed to wound the coil. As input, requires the Diameter, number of turns, wire diameter and turn spacing -
If you ever asked if you need an Unun or a Balun this article is for you. The right question should be do I need a feed line choke or an impedance transformer whose output is configured as balanced or as unbalanced. An impedance transformer can be configured as a voltage transformer or as a current transformer. -
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How to build a low-pass filter to remove alternator whine from your car -
The Davie/Cooper City Amateur Radio Club (DCARC), established in 2010, is an amateur radio organization based in western Broward County, Florida. -
An in-depth comparison here between the various digital technologies -
An article by microHam about guidelined to eliminate problems caused by RFI -
A club dedicated to Hellschreiber, or Hell, a unique, HF digital mode for sending and receiving text using facsimile technology -
Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters -
In 1996 the NWARC was formed and is a non-profit society organized to deliver communication services during emergencies. -
A guide to setup and operate on JT-9 mode, including a sample QSO and setup hints by VA3PAW -
Phased Spaced Active Whips and Broadband Loops by WA1ION -
High Performance Communications Receiver AKA, The Progressive Receiver -
overview of radio signals and radiowave propagation and how different areas of the atmosphere affect radio communications. -
How-to decode and Display APRS Packets from WebSDR Audio using linux computer -
Electronic keyer by pressure sensor. SEN-09673 is used for detecting touch. -
Tutorial about writing a software SSTV modulator/demodulator using slant correction and several improvements. It requires programming language knowledge and programming skills. -
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The _Nemos Photography_ blog presents a curated visual gallery focusing on _Morse keys_, offering a detailed photographic exploration of various telegraphy instruments. Each entry typically features high-resolution images of specific keys, highlighting their design, construction, and historical context. The content serves as a visual reference for collectors and enthusiasts interested in the aesthetics and mechanics of CW sending devices, often including close-ups of key components and unique features. This resource allows for comparative study of different key types, from vintage straight keys to modern paddles, without delving into technical specifications or operational performance. The emphasis is purely on the visual documentation of these artifacts, providing a unique perspective on the evolution and diversity of Morse key designs. It is a specialized collection for those who appreciate the craftsmanship and historical significance of telegraphy hardware. -
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QSL Cards design and printing, offer free shipping and free graphic design from any quantity of photos and graphics -
The Saratoga Amateur Radio Association provides emergency communications for the City of Saratoga, and promotes amateur radio in the community. -
Interesting article on how Marc Van Stralen, PA1HFO, took the Drake TR-7 Transceiver to the Next Level. -
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Descriptions, summaries,and tutorials about electronic circuits and electronic circuit design including amplifiers, attenuators, logic, transistor, operational amplifiers and much more -
A non profit organisation run entirely by volunteers to promote Low Power Radio. -
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Locura Digital is a Radio-Communication Professional company, dealer for wide range of amateur radio products, based in Barcelona Spain -
STAR-H Corporation specializes in extremely wideband dipoles and compact low-profile antenna systems for military, emergency management, commercial operations and consumer wireless applications. -
Table reference for serial ports commands supported by TM-D700A -
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Original User Manual for the Baofeng UV5R -
This site is basically for the begeners (SWL) of india. This site is supporting to digital communication for hams also. -
Experimental Stations Run by W1TAG WD2XES has been used to study LF antenna design, propagation and communication modes. Signals from WD2XES have been copied as far away as Russia. -
W4SHL amateur radio club in Shelby County
