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- Technical Reference > AI Ham Radio
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Home of the W9LY and K9JSI repeaters
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Elmendorf Amateur Radio Society Joint Base Elmendorf-Richardson JBER, Alaska
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The Stu Rockafellow Amateur Radio Society was founded in 1960 and has been affiliated with the ARRL for 45 years.
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Explores the re-establishment of SDRGadgets as an online shop, focusing on accessories for Software Defined Radio enthusiasts. The proprietor details the process of rebuilding the website and restocking products after a hiatus, emphasizing a commitment to affordability and user experience in the SDR hobby. The site aims to offer items that enhance SDR operation, such as VFO controllers, without significant financial outlay. Anticipates a refreshed product line featuring a "sleeker and more technical look and feel," leveraging new manufacturing technologies. The owner expresses enthusiasm for showcasing these redesigned items and expanding the inventory beyond initial offerings, inviting customer suggestions to tailor product development. Welcomes both returning customers and new visitors, acknowledging the current limited product availability during the rebuilding phase. The site promises worldwide postage and encourages interaction for product ideas, aiming to foster a community around practical, budget-friendly SDR solutions.
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DF0WD/DL4YHF's Longwave Overview details amateur radio operations on the 135.7 to 137.8 kHz segment in Germany. The author outlines the "inofficial" European band plan, specifying segments for QRSS, TX tests, beacons, conventional CW, and data modes. Early LF activities at DF0WD began with a 20-watt CW transmitter, later upgraded to a homemade linear transverter capable of 100 watts, driven by an Icom IC706 on 10.137 MHz. The station's antenna system includes a 200-meter wire, approximately 10 meters above ground, supported by football field light-masts. Despite its length, the antenna's efficiency is noted as very low due to the immense wavelength of about 2.2 km. The author's experience highlights the significant challenge of achieving effective radiated power (EIRP) on LF, estimating DF0WD's EIRP at around 80 milliwatts based on field strength measurements from PA0SE. DF0WD/DL4YHF has successfully worked numerous countries on 136 kHz CW, including DL, F, G, GI, GM, GU, GW, HB9, HB0, LX, OE, OH, OK, OM, ON, OZ, PA, and SM. The author also mentions ongoing efforts to log contacts with CT, EI, LA/LG, and to complete a two-way QSO with Italy, demonstrating persistent activity on this challenging band.
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NARL homepage, the namibian amateur radio league
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A club for all those who are interested in Amateur Radio, meet in the London Borough of Harrow which is located in North-West London, UK
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MARCA, Inc. operates approximately 24 repeaters across Arizona mountaintops and Phoenix-area rooftops, supporting modes like D-STAR and Fusion. The club, holding the **W7MOT** callsign, engages in diverse activities including ARRL Field Day events near Forest Lakes, AZ, ARRL FMT contests, and antenna experimentation. Members actively participate in HF operations such as voice, digital, CW, DXing, and various digital HF modes, alongside MESH and EOC operations within the valley. The club's interests span a broad technical spectrum, from SDR radio building to antique radio restoration, and include modern digital modes like WSPR, WSJT, FT8, and FT4. They also explore computer-based operations such as Echolink, fostering a dedicated Single Board Computer (SBC) and Raspberry Pi group. Monthly VE testing sessions for Technician, General, and Extra Class licenses are conducted by Ray Vasquez, K4RMV. Meetings are held on the third Tuesday of each month, typically lasting two hours, with a business segment followed by a technical presentation. These gatherings occur in-person at IHop in Mesa, AZ, and concurrently via Zoom, accommodating both local members and winter visitors. Informal chat groups often form post-meeting to discuss specialized topics like D-STAR, SDR, APRS, MESH, and Fusion.
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The WCARC is a general interest ARRL Affilated Special Service Club.
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FPARC - Supporting amateur radio enthusiasts and SWLs in the Portsmouth area. Monthly meetings and summer Field Weekends using club call M0GZN and occasional Special Event Station GB1PF.
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Tait Digital Mobile Radio (DMR) is an affordable digital communications platform that delivers a range of workforce efficiencies and operational benefits for mission critical users.
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The Sandy Amateur Radio Club was organized on September 25, 2014. It is open to any and all licensed amateur radio operators and anyone who is interested in the hobby
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The Bella Vista Radio Club (BVRC) welcomes you to the NW Arkansas, SW Missouri and NE Oklahoma Area.
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The club is based in chingford, north east london
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San Rafael, CA ham radio club
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Our goal is to provide helpful and useful information to Ham Radio Beginners so you can get started as soon as you want to enjoy the amateur radio hobby.
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Coastal Amateur Radio is for hams south of the Fraser. Even if you live north of the Fraser you are welcome to join in. Hams who come together for the love of HF & VHF in the hobby.
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Crystal receivers are radio receivers that work without a power supply or batteries. Gallery of some crystal radio projects
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The Primary N6OCS Repeater is located at 5700 feet on Santiago Peak in the Santa Ana mountains.
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What are the Differences between UV5R and UV82 Series
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GM4YEQ Galashiels and District Amateur Radio Society (GDARS)
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Using portable battery power is always a challange when operatin amateur radio in sota oprations. This article is about implementing lithium iron phosphate cells (LiFePO4) in ham radio portable operations.
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A mission of the club is to promote amateur radio by way of educational programming and activities. MCARC is an affiliated club with the ARRL.
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Affiliated with the American Radio Relay League in the Oregon Section of the Northwestern Division
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A personal blog about amateur radio activities, including homebrew, bitx, ubitx, mcHF, JT65, FT8 and more digital communications.
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Wireless Society of Southern Maine Projects, instructions and photos for many ham radio projects and experiments, including antenna construction and modelling, kit building, station setup, restoration and more
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Unlike older radios, the 706 uses only one crystal oscillator (called the Master Oscillator). All other frequencies in the radio (L.O., 3-4 I.F. stages, VFO, and CW-offset) are computer-derived from the Master Oscillator. This makes it relatively simple to frequency-align the radio, so that it agrees with the Frequency Display in all modes.
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Most members of GRRAA reside in Union County and Wallowa County Oregon, however we welcome any and all that have an interest in amateur radio.
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Eham users review of Radio Shack PRO-95
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The TRI-STATE emergency communications response team is dedicated to providing help to public service agencies with communications when normal communications are not working.
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This article is about a homebrew 6 meter lightweight Moxon antenna. Article includes a full part list, instruction to assemble the parts and pictures.
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Polish Online radio shop, dealer for President Alan Midland CBradia CRE Magnum Intek Yosan CRT Firestik Antenna Sirio Solarcon
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Online coloured Azimuthal Map Generator. By default, this map shows the current gray line. The parts of the Earth that are currently in the sun (i.e., daytime) appear brighter, and the parts of the Earth that are experiencing night appear darker
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Kendall Amateur Radio Society (KARS) offers ham radio activities and fellowship to ham radio operators in Boerne, Tx, the hill country and NW San Antonio.
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Heinrich Hertz was the first to send and receive radio waves.
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DK7IH QRP transceiver for 14 MHz. This small and compact home made transceiver with a max power output of 5W, the VFO module is based on the clock oscillator chip Si5351A by Silicon Labs ATmega168 and OLED 1306
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The White Rose Amateur Radio Society website provides information on amateur radio activities in Leeds and West Yorkshire, including details on meetings and membership. Contact details for the membership secretary are also available.
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Amplitude Modulation (AM) is essentially a mixing process where the audio modulating signal is mixed with the radio frequency carrier
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Details the history and cessation of the Amateur Radio Association of Bahrain (ARAB), operating under the callsign **A92C**. Established in 1970, ARAB functioned as the primary representative body for amateur radio enthusiasts within Bahrain for several decades. The organization facilitated various amateur radio activities and provided a central point of contact for local hams. The resource indicates that ARAB ceased operations due to unspecified circumstances. It explicitly states that the organization is no longer active, marking the end of its long-standing service to the Bahraini amateur radio community. Information regarding a newly formed society, open for membership, is provided, with contact details for Fawaz, **A92AA**, for further inquiries about the successor organization.
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The Bishop's Stortford and District Amateur Radio Society founded in 1967
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Provides a robust logging solution for amateur radio operators across multiple operating systems, QLog simplifies the process of recording contacts and managing station data. It leverages the _Qt framework_ for its graphical user interface and stores all QSO information efficiently in a local SQLite database, ensuring data integrity and accessibility. This design choice supports a streamlined user experience for daily logging activities. QLog supports essential logbook functionalities, enabling hams to accurately document their two-way radio contacts. While not specifically designed for high-speed contest operation, it serves as a reliable tool for general amateur radio logging, allowing operators to maintain detailed records of their on-air achievements and station activities. Its cross-platform compatibility, including Linux, Windows, and macOS, makes it a versatile option for a wide range of amateur radio enthusiasts seeking a free and functional logging application. The project is a fork from _7h0ma5/QLog_, indicating a continued development path.
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The South Essex Amateur Radio Society was formed in 1983 in UK