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Operating 28.249 MHz and 50.074 MHz from Bozeman, Montana -
NDXA Nippon DX Association supports major DX-expeditions. DX news and updates from Japan -
N8VI\'s powerpoint on satellite keplerian elements. -
Radio central, rcarc, amateur radio, radio central amateur radio club -
A Yagi-Mag antenna for the 4 meters band with NEC and MMANA files plans and pictures -
A nice guide to make basic contacts in morse code with a particular reference to SOTA operations by VK3BQ -
Listen to live police radio scanner from Dallas -
Installing the Cumbria Designs X-Lock VFO Stabilizer, and Improving The TR7 Audio Quality -
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Pictures of Hellschreiber machines as projected by Rudolf Hell -
Motorola Amateur Radio Club, Schaumburg chapter -
Suburban amateur radio repeater is a wider coverage machine with six receiver sites in the chicago metropolitan area. -
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Using the raspberry Pi for amateur radio operations with digital mode decoding and log book program -
A youtube video instructions on how to replace, the Select knob. Very often this know wobbles after some years of usage and in this video is well documented all passages needed to replace the knob. -
A page dedicated to servicing and building a 10 meter band moxon Antenna -
Our purpose is to have fun with Amateur Radio, to help others that wish to join the hobby, and to offer assistance to our community in times of eminent danger or disaster. -
Radio amateurs worldwide are being asked to help collect data from the student-built SSETI Express satellite, due to be placed in orbit on 27 September. To encourage them, ESA’s Education department has organised two competitions and is supplying free downloadable software. -
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Article on Phase-cancellation of noise on 2m band -
Simple QRP projects, 10m, 6m, WSPR beaconing, sub-9kHz and other random stuff -
Introduction to NVIS antenna and NVIS propagation. A simple NVIS antenna can be constructed as shown in this article -
The Delaware Valley Radio Association is a non-profit 501(c)(3) organization devoted to the promotion and preservation of the amateur radio hobby. The club is comprised of amateur radio operators and their families. -
An home made low noise preamplifier project for 144 MHz, with detailed circuit diagram. The VLNA-144 preamplifier has been Published on DUBUS 4 2019 -
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Yaesu Certified European Distributor and Authorized Service Center based in Italy -
Hardsoft products home page: telefonia, telecommunications, radio, computers, base -
RUSSIA Ham radio club AMUR, FarEast Khabarovsk. News, events, photos. -
A simple dipole for 40m band feeded with 450-Ohm openwire feedline includes MMANA Gal files to download -
MB7ICL Echolink Node Clacton on Sea, Essex The Gateway to the world -
Hundreds of ham radio operators in the US Midwest rely on regional hamfests for equipment sales, technical presentations, and social interaction. This Yahoo Groups forum serves as a dedicated platform for promoting these events, allowing organizers to post announcements and attendees to find information on upcoming gatherings. The group's focus is specifically on hamfests within the Midwest, facilitating local and regional participation in these important amateur radio activities. The platform enables members to share details about various hamfest activities, including flea markets, vendor exhibits, and license examination sessions. While the group primarily functions as an announcement board, it also supports community discussion related to event planning and attendance. The resource helps hams locate nearby events, fostering engagement within the Midwest amateur radio community. -
By AYR Ham Radio Club -
The **Escort** series Tactical Carrying System provides robust protection and enhanced portability for popular HF transceivers, addressing the need for secure field operation and transport. These systems, designed for models such as the Yaesu FT-857D/891, FT-991, FT-817/818ND, and Icom IC-706/703/7000, IC-7300, feature military-grade construction with front panel protection and versatile carrying strap attachment points. Operators can confidently deploy their rigs in various environments, from SOTA activations to casual field days, knowing their equipment is safeguarded against bumps and impacts. Beyond tactical carriers, Portable Zero LLC also produces the **Sherpa Pack** for the Yaesu FT-817 and the Field Power 12 and Field Power 3 Battery Cases. These accessories complement portable operations by providing essential power solutions and additional carrying options, facilitating extended off-grid activity. Established no later than 2013, Portable Zero LLC manufactures its products in the USA, leveraging CAD design and CNC precision laser cutting for consistent quality. The company's commitment to enhancing portable amateur radio operations is evident in its specialized product line, available in finishes like Black Texture and OD Green. -
Details about the upcoming Saskatchewan Hamfest in 2002 on July 5th, 6th and 7th. -
A device to allow the transmission of Morse on VHF/UHF FM-only transceivers by VK3YE -
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Unequaled surge suppression for indoor/outdoor/military and custom needs. -
This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission. -
Noise Canceller kit originally developed about 1989 by G4WMX and GW3DIX and improved by DK9NL and DG0KW.The VK5TM Noise Canceller is another version of the design, with the HF Vox circuit removed and a couple of other minor changes, including the use of SMD JFETs and a double-sided pcb. -
A home made project for an ATV RF power amplifier -
Six meter band DJ9BV yagi antennas by YT1VP -
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The Hamilton Amateur Radio Club operates the VE3NCF repeater, 146.760- and 444.075+MHz. It is open for use by all Hams -
Over 100 trained amateur radio operators comprise the New York City Amateur Radio Emergency Communications Service (_NYC-ARECS_), an auxiliary communications service dedicated to providing vital radio links during local, regional, or national civil emergencies. This organization supports governments, civil-preparedness, and relief agencies in situations such as power failures, explosions, fires, floods, earthquakes, or terrorist activities. Their operational readiness is critical for maintaining communications when conventional infrastructure fails, leveraging the resilience and adaptability of amateur radio. NYC-ARECS actively participates in the NYC Office of Emergency Management (_OEM_) Partners in Preparedness program and is a member of DHS FEMA's National Preparedness Coalition, demonstrating its integration into broader emergency response frameworks. The group's activities include regular training, maintaining operational readiness, and deploying communication assets across the five boroughs of New York City. Their efforts ensure robust, independent communication channels are available to support disaster relief and public safety operations. -
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Twenty-four repeaters, including D-STAR and Fusion systems, are maintained and operated by MARCA Inc., primarily located on Arizona mountaintops and around the Phoenix metropolitan area. The organization, holding the callsign _W7MOT_, facilitates a wide range of amateur radio activities, such as ARRL Field Day events near Forest Lakes, Arizona, and participation in ARRL FMT contests. Members engage in antenna experimentation, construction, and maintenance trips to repeater sites. The club's interests span diverse topics, including HF voice, digital modes like _WSPR_, _WSJT-X_ (FT8, FT4), and CW, alongside DXing, MESH networking, and EOC operations. It supports technologies from SDR radio building to antique radio restoration and computer-based operations like Echolink, fostering a Single Board Computer (SBC) and Raspberry Pi group. Monthly meetings, held on the third Tuesday, feature business discussions and guest presentations, with informal summer gatherings and an annual holiday dinner in December. Monthly VE testing sessions for Technician, General, and Extra Class licenses are conducted by Ray Vasquez, K4RMV. Post-meeting discussions often cover specialized interests such as repeater operations, technical topics, D-STAR, SDR, APRS, Fusion, and Raspberry Pi projects. -
Forum post on differences between the Acom 1010 (single 4CX800) and Acom 1011 (Two 4CX250B) -
A compact Yagi with bent Driven Element. Worlds smallest yagi that did EME QSO -
The life and times of development of a Linux D-Star repeater and dplus node.