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Query: david
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RM is an Italian company operating in the radio communication field since 1974, main products are: HF-CB-VHF-UHF-Dual Band RF Power Amplifiers, Power Supply, DC-DC Converters Antennas and more products.
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This Vertical antenna design by David Reid for lower bands focuses on achieving effective DX communication by optimizing the antenna low-angle radiation for long-distance contacts. The design incorporates techniques like linear loading and capacity hats to reduce the antenna's height while maintaining performance, especially on 40m and 80m bands. Building a solid ground plane and using quality materials ensure efficiency and durability. Although vertical antennas can be complex to build, this project simplifies the process, making it accessible for ham operators seeking strong, reliable signals.
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This shows an unsuccesful attempt to build a push pull 2 m amplifier, with the tubes in grounded screen.
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William Hepburn's Daily Tropospheric Ducting Forecast.
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Downloadable DOS program for propagation prediction for the serious contester.
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This is a propagation prediction program tailored to the serious contester
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Program to demodulate NOAA, Okean, Meteor 3-5 and Resurs signals without the bent verticals resulting from WXSat.
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Design and optimize Yagi antennas. Ol GW Basic program for dos.
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antennas experiments by David Reid PA3HBB G0BZF
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Thermocouple ammeters are very rare these days, but the job they were perfect for - measuring antenna currents - is still a modern requirement especially in respect to groundplane currents. By David A. Reid PA3HBB G0BZF
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Free Morse Code CW training software for Android supporting the Koch method by IZ2UUF David
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Sales CB Radios and accessories online
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Linpac is an extensible Linux packet terminal that supports easy access to concurrent connections (streams), PBBS/FBB forwarding, and support for adding external commands
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On Track On Line provides information about Rail Travel and all facets of the hobbies of railroading and trains.
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Serving Tarrant, Parker, Wise counties, and city of Fort Worth, Azle, Springtown, Boyd, Weatherford, Saginaw
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The Peaberry SDR is the first and only do-it-yourself transceiver that doesn't require adding sound cards to your computer.
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2E1EHM web site with a collection of pictures. You can download from this site to add to your SSTV picture library.
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Demonstrates a practical approach to improving Morse code proficiency through a curated selection of audio files. The resource offers downloadable MP3 files designed for CW practice, catering to operators aiming to increase their copying speed and accuracy. Content includes both standard words and specific amateur radio callsign groups, which are crucial for effective on-air communication. The files are organized to facilitate progressive learning, allowing users to select material appropriate for their current skill level. This collection supports the development of essential CW operating skills, particularly for those preparing for contests, DXing, or general ragchewing on HF bands. The _ON6ZQ_ site, maintained by _Christophe David_, also features information on his _Reverse Beacon Network_ skimmer and _SOTA2APRS_ feed, indicating a strong focus on active operating modes and digital integration.
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Rutherford County Sheriff and Fire Live Scanner Audio Feed on RadioReference.com
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DELTA Technology is specialized in the lightning protection field, surge arresters, lightning counter.
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Alfa Tango England Official Homepage - A vast amount of information about the English division of GRI Alfa Tango also including DX news, tools, software and events
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Club activities, news and newsletter Ham Chatter Online features a member each month. Field Day pictures, etc. Home of VOA transmitter sites. Club calls, W4AMC & W1VOA Greenville, NC
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The GM4JJJ VHF and EME pages document David's extensive work in Earth-Moon-Earth (EME) communication, specifically on the 144 MHz band, and his involvement in amateur radio astronomy. The resource details his station setup and operational experiences, providing insights into the technical challenges and rewards of bouncing signals off the moon. It offers a glimpse into the specialized equipment and techniques required for successful EME contacts, a niche but highly rewarding aspect of amateur radio. David's content shares practical applications and field results from his EME endeavors, which can be particularly useful for hams contemplating or actively pursuing moonbounce operations. The information, while not a step-by-step guide, implicitly compares the complexities of EME with more conventional VHF/UHF operations, highlighting the significant power and antenna gain necessary to overcome path losses. This resource serves as a testament to the advanced capabilities achievable in amateur radio.
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Easy to use award tracking software for ARRL, 10-10, CQ, HRN, OMISS, EPC, RAC and more.
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Benelec Pty Ltd specializes in the design and manufacturing of **antennas** and RF components, covering a broad frequency range from 0.002 GHz to 8 GHz. Their product line includes Land Mobile Radio Antennas, such as HF 2-30MHz, VHF 40-180MHz, and UHF 200-520MHz models, alongside specialized Military Antennas for dismounted, UxS, C2, and EW applications. The company also produces Cellular Antennas, including 4G/5G and GPS/GNSS types, and Marine Antennas for both vessel-mounted and fixed-site installations. Additionally, Benelec offers a comprehensive range of coaxial cables, connectors like N-Type and SMA, and various radio accessories. The company's offerings extend to RF components such as duplexers, diplexers, and 50 Ohm loads, as well as DAS components like directional couplers and hybrid combiners. Benelec provides EMP and lightning protection solutions, including 1/4 Wave Stub protectors and replaceable GAS capsules. Their product catalog also features P25, DMR, and FM Analog radios, along with portable and mobile radio accessories like batteries, chargers, and cabled headsets. The company supports various sectors with robust communication solutions.
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Headsets for noisy environments
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Solar Panels, Grid Tie Systems, Solar Power Kits, Solar Cells and more. DMsolar carries solar energy products for your needs.
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Trained amateur radio communicators under ARES, RACES and Skywarn serving Harford County, Maryland communities
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An Indianapolis club specializing in working contests, both CW and SSB, chasing worldwide DX, and supporting DXpeditions. Please drop by one of our meetings and join the fun!
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Sharing the stories of Pacific radio, an on-line archive and resource. Includes searchable databases, articles, images, store, newsletter, research, advocacy, publishing, radio heritage documentary production and more. Free membership worldwide.
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Connecting rhythm and language with Morse Code by Phil and David Tulga
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The Chattooga - Walker amateur radio club
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Countries worked on 6 meters, ZF firsts on 50 Mhz, and links to resources.
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Fort Worth, Texas Best Hamfest; Fort Worth best opportunity to learn about Ham Radio and visit with your friends, Cowtown Hamfest
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The David Sarnoff Radio Club is a general-interest amateur radio club serving the Greater Princeton, NJ area.
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Cheap but effective multiband quad antenna covering the entire horizon on 10-12-15-17-20m bands.
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Peanut is a free Digital radio client Android App. The App requires a manual registration with the author and allow to chat in proprietary rooms or to connect room linked to DSTAR amateur radio repeaters worldwide. A central Peanut dashboard with current system activity is also available.
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Designer and supplier of tower reinforcement systems to the wireless industry.
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Details about the upcoming Saskatchewan Hamfest in 2002 on July 5th, 6th and 7th.
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Formed in 1987, serve the west part of Cambridgeshire that straddles the valley of the river Great Ouse and was the old county of Huntingdonshire. This includes the market towns of Huntingdon, St Neots, St Ives and Ramsey.
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Arduino code for buidling Yaesu VX8r Handheld Transmitter-compatible GPS. A compatbile GPS unit, made with open-source and generally available components, that can be used to proivde the position and velocity information for the Yaesu HT
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This is the website for K3LP, well known DXer and DX-peditioner. Look for Dave during the main four Contests (ARRL DX CW/SSB and CQWW SSB/CW)
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Amateur radio map of Italy with WW locators, provinces abbreviations and Call sign Prefixes, in a A3 size PDF file free to download, made available by IU3KJL Davide
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Blog post about t he Yaesu VX-170
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K3AS.com Home Page, Discover SSTV, See K3AS SSTV CAM, Live SSTV Images Received by my Station, View My Station Equipment.
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W4SHL amateur radio club in Shelby County
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Radio Amateurs of Greater Syracuse is an organization involved in promoting public service, fellowship, and ham radio in general, in the Syracuse, NY area. This site provides information, news and events of interest to hams in Central New York.
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UK based CB Radio, Ham Radio, PMR Radio web forum
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Miscellaneous ham radio stuff from K2DBK