Search results
Query: lea
Links: 708 | Categories: 48
Categories
- Operating Modes > Morse code > Learning Morse Code
- Operating Modes > Aircraft scatter
- Manufacturers > Antenna Analyzers
- Technical Reference > Batteries > Battery Charger
- Operating Modes > Packet Radio > Beginner's Guide
- Propagation > Beginner's Guide
- CB Radio
- Manufacturers > Transceivers > CB Radio
- Antennas > Feed Lines > Coax Stubs
- Operating Modes > D-STAR
- Operating Modes > Digital Voice
- Ham Radio > Elmers
- Technical Reference > Grounding
- Ham Radio > Hamfests
- Antennas > Theory > Impedance matching
- DX Resources > QSLing > International reply coupons
- Operating Modes > JT9
- Technical Reference > Key Clicks
- Technical Reference > Lightning Protection
- Operating Modes > WiFi > Long Range WiFi
- Propagation > Long-Delayed Echoes
- Ham Radio > Clubs > North America > USA > Louisiana
- Operating Aids > History > Marconi
- Operating Modes > Meteors
- Operating Modes > Morse code
- Software > Morse Code Training
- Operating Modes > Navtex
- Operating Modes > NPR New Packet Radio
- Operating Modes > NVIS
- Technical Reference > Radio Frequency Interference > PLT
-
The Westside Amateur Radio Club, Inc. is the oldest such club in the New Orleans area. Westwego Lousiana
-
Demonstrates the fundamental principles for connecting a personal computer to a ham radio transceiver, specifically for utilizing sound card-based digital mode software like those in the MM Hamsoft suite. It details the basic hardware setup, emphasizing the use of shielded leads and proper audio routing from the radio's output to the sound card's input, and from the sound card's output to the radio's microphone or data input. The resource highlights the critical need for transmit attenuation, suggesting a 100:1 voltage divider to prevent overdriving the transmitter's audio stage, and mentions the optional addition of ferrite beads and decoupling capacitors for RFI mitigation. The guide also points to external resources for more detailed pin-outs and interface schematics, such as a specific QSL.net page, and recommends consulting the help files within MM Hamsoft programs for interfacing specifics. It underscores that while the process is straightforward, understanding the audio level management and proper cabling is key to successful operation. The author, VE5KC, provides practical advice drawn from common issues encountered by operators setting up digital mode stations.
-
Antenna Authority Inc. offers a wide assortment of directional, wideband antennas and other equipment specifically engineered for radio direction finding (DFing) and geolocation applications. Their product line includes _log periodic_, _cavity-backed spirals_, and _Yagi_ antennas, alongside covert antenna solutions for various operational requirements. The company emphasizes its expertise in designing and manufacturing specialized antennas for both overt and covert operations. Beyond standard offerings, Antenna Authority Inc. provides custom design services to meet specific client needs, focusing on tailored RF directional products. Their capabilities extend to developing antennas for vehicles and optimizing their operational performance in diverse scenarios. The firm is located at 3381 W. County Line Road, Douglasville, Ga. 30135-1145. Ferrel Bentley is associated with Antenna Authority Inc., which has been operating since at least 2005, as indicated by the copyright notice.
-
1500 watts PEP SSB is the power handling capability of the MFJ-989C HF Antenna Tuner, a popular choice among amateur radio operators. Users have shared a wide range of experiences, with some praising its durability and performance over decades of use, while others criticize its build quality and accuracy. The tuner features a built-in dummy load, SWR-wattmeter, and a balun for balanced line feeders, making it versatile for various antenna setups. However, discrepancies in RF power readings and SWR measurements have been noted, with some users finding the dual scale meter to be off by about 20% compared to a Bird wattmeter. Long-term users report that the MFJ-989C performs well with proper antenna setups, but caution against tuning at high power without initial adjustments at lower power levels. Some have experienced issues such as arcing when exceeding 400 watts, while others have had no problems even at higher power levels. The roller inductor and capacitors are functional, though some users have had to perform maintenance like tightening screws or cleaning components to ensure reliable operation. Despite mixed reviews, the MFJ-989C remains in production, suggesting continued demand. It's a tuner that requires careful handling and possibly some DIY fixes to achieve optimal performance.
-
Have wondered why a Smith chart has such strange grid lines. Believe it or not, there is a logical progression from Speedometers to Smith charts that will make the Smith grid crystal clear.
-
Main High Frequency Antennas from the 2009 LARC FARL Field Day, Ford Amateur Radio League. A document comparing antenna performances and flexibility among a G5RV an Carolina Windom and a Cushcraft R7 vertical antenna.
-
GW6ITJ articles on morse code, learning techniques, clubs and organizations and a custom learning software.
-
John Shannon, K3WWP article on basics of learning morse code using a straight key.
-
-
Explains the annual Jamboree on the Air (JOTA) event, a global amateur radio gathering for Scouts and Guides. This activity connects young people worldwide through ham radio, fostering international friendship and introducing them to radio communication technology. Participants use various amateur radio bands and modes, including HF, VHF, and digital modes like FT8 and JS8Call, to make contacts with other JOTA stations and learn about the hobby. The ARRL provides resources for Scout leaders and amateur radio operators interested in hosting a JOTA station, including guidelines for setting up temporary stations, safety protocols, and educational materials. The event typically occurs on the third full weekend of October, aligning with the World Organization of the Scout Movement's (WOSM) global schedule. JOTA emphasizes hands-on experience with radio equipment, antenna theory, and basic operating procedures. It serves as a significant public service opportunity for hams to engage with youth and promote the educational aspects of amateur radio.
-
Founded by a small group of young hams in East St. Louis, Illinois, the W9AIU Egyptian Radio Club serves as a local amateur radio organization. The club's origins trace back to meetings held in Herb Wilhelm's, W9APX, dry cleaning shop, indicating a grassroots beginning for this community group. It operates as a typical ham radio club, fostering camaraderie and likely supporting various aspects of the hobby for its members. As an amateur radio club, W9AIU likely engages in activities such as local nets, field day operations, and perhaps provides licensing support or technical discussions. Such clubs are crucial for new hams seeking mentorship and for experienced operators looking to participate in group activities like contesting or public service communications. The club's presence in Illinois suggests a focus on local and regional amateur radio initiatives.
-
Installing a mobile rig in a vehicle requires careful planning and execution to ensure optimal performance and safety. The process begins with selecting the right equipment, such as the ICOM IC706MKII for low bands and the ALINCO DR-610 for VHF/UHF operations. Proper mounting is crucial; both radios are strategically placed under the back seat of the Silverado, allowing for a clean installation while maintaining passenger comfort. The Hustler antenna, equipped with various resonators, ensures coverage across multiple bands, while the LDG automatic antenna tuner fine-tunes the match for efficient operation. A remote head for the tuner enhances accessibility, making adjustments easier while driving. Each step of the installation is documented to provide insights and tips for fellow operators looking to enhance their mobile setup. The experience shared here reflects practical knowledge gained through hands-on work, aiming to inspire others in the ham community to undertake similar projects.
-
The correct procedure for measuring SSB PEP (Peak Envelope Power), using an oscilloscope with a vertical bandwidth of at least 20 MHz, or a monitor scope.
-
TS-850 is not much effective on AM since it does produce fairly clean audio, however while it does noticeably improve low-end frequency response
-
XQ3SA personal website and Chilean Internet Callbook.
-
It is possible to detune the tower so that, at least on one band, the tower can be made to effectively disappear. That is, become non-resonant on the band of interest. This allows the vertically-polarized low-bands antenna to meet its potential.
-
Demonstrates the community-driven mission of the McKinney Amateur Radio Club (MARC), a North Texas organization dedicated to advancing amateur radio. The club actively promotes continuous learning, encouraging technical innovation among its members, and provides avenues for public service engagement, skill enhancement, and global connectivity with fellow operators. MARC hosts weekly breakfast discussions every Saturday at 7:30 AM at IHOP in McKinney, Texas, covering diverse topics and offering a Q&A forum. The club emphasizes emergency communication preparedness, antenna design and tuning, and the science of global radio wave propagation, crucial for clear amateur radio contacts. Furthermore, MARC explores modern radio technologies, including digital modes and _Software-Defined Radio_ (SDR), blending traditional amateur radio with cutting-edge advancements. The club also facilitates license testing sessions, hands-on training, and participates in events like _Field Day_ to hone emergency communication skills.
-
A world leading developer of spectrum analyzers, RF system, test equipment and microwave solutions
-
Morse Code And Radio For Kids and Amateurs. This guide covers many different aspects of the history of and how to learn Morse code.
-
Midwest Mountain Thunder CB Radio Group is a group of CB SSB operators that started in the Midwest as a branch off of the Washington State group. good clean radio
-
The Union Métropolitaine des Sans-filistes de Montréal (UMS) operates daily nets on **VE2REM** 147.015+ T103.5, **VE2RYV** 146.655- T141.3, and **VE2RVK** 145.430- T141.3, alongside Echolink VE2UMS-L and DMR TG302273. This Montreal-based club, representing hundreds of radio amateurs, provides information for those interested in amateur radio and serves as a communication hub for its members, including a regularly visited ham radio flea market section. The site also highlights significant club initiatives like the AREDN Mesh Network modernization project and an innovative after-school program. The UMS website details upcoming events such as the 2026 sugar shack invitation, Field Day 2025, and monthly meetings scheduled for September 18, 2024. It also features a live log sheet section and a WEB SDR, offering practical tools for members and visitors. The club's president, Bruno VE2VK, extends a welcome, emphasizing the UMS's role in fostering amateur radio in the greater Montreal region, with contact information provided for inquiries.
-
The purpose of this page is to provide information regarding Morse code (otherwise known as Continuous Wave or CW) to hams and non-hams alike.
-
AFR Enterprises a leading distributor of electronic components, semicondustors, diodes, Resistors, Integrated Circuits across the USA.
-
Pearland Amatuer Radio Club is affiliated with the American Radio Relay League (ARRL) and is registered with the Amateur Radio Emergency Service (ARES) located in Pearland near South Houston, Tx.
-
This Website is your resource for learning and enhancing your Morse Code / CW Communications skill
-
ASAP Semiconductor is a premier source for all long lead-time, hard to find, and obsolete components.
-
Dowload free morse flash cards, and start learning morse code flipping the cards
-
A group for sharing, learning or presenting practical ideas and field experience for Ultra portable ham radio digital comm
-
Comprod Communications specializes in the design and manufacturing of RF communication solutions, including a comprehensive range of antennas, duplexers, multicouplers, and combiners. The resource details their product categories, which encompass base station antennas, mobile antennas, transit antennas, and disguised antennas, alongside mounting solutions and in-building systems. It highlights the company's 40-year history in adapting offerings to client needs and anticipating industry trends, emphasizing product durability and low maintenance for harsh environments. The company's offerings are presented as high-quality, designed to withstand extreme conditions from Arctic cold to equatorial heat and humidity. The site mentions solutions and technical sales support, training, and site analysis and system design as part of their service portfolio. It also references being a market leader trusted by over 1,000 customers worldwide, positioning itself as a partner for RF communication needs.
-
Nearly half of all reception problems are due to deficiencies or faults in the television receiver, the aerial lead or the aerial. This article will help you to check whether the problem you are having is due to one of these causes.
-
ELENOS is the leader company for fm transmitters, amplifiers, radio broadcast equipment and custom systems.
-
North Carolina amateur is refuting a clean bill of health the FCC gave this summer to a BPL field trial system in the Raleigh area.
-
RTTY transmissions with audio boards, can be transmitted either in FSK or AFSK mode. Learn differences between this two different modes by IK3QAR
-
-
The Order of Boiled Owls of New York (OBONY) serves as a dedicated hub for amateur radio operators passionate about contesting and DXing. Founded to promote skill development and camaraderie within the competitive ham radio sphere, OBONY members actively participate in major domestic and international contests, striving for top scores and _DXCC_ achievements. The club provides a platform for exchanging operational strategies, technical insights, and logging practices, which are crucial for success in high-stakes events. OBONY's focus extends to fostering a vibrant community where both seasoned contesters and newer operators can learn and grow. They emphasize the importance of ethical operating practices and technical proficiency, contributing to the overall advancement of the amateur radio hobby. Members frequently achieve impressive results, with many logging **thousands of QSOs** during major events and consistently placing well in various categories.
-
How to learn Morse Code, a web site dedicate to morse code learning
-
Frequency calibration is a user adjustment on the rear panel. Learn how to calibrate the IC-746 Pro.
-
Learn Morse Online in 40 lessons with this web based morse code learning program, based on the Koch method. Choose the lesson, adjust the wanted parameters, and start the transmission of a set of random characters based on chosen lesson. Recognize the code and verify it at the end of the lesson.
-
Worldwide leader in wind power generators
-
Streaming media portal for the BATC www.batc.org.uk. If you have any material relating to ATV that you would like to share with the rest of the ATV community, please get in touch so that we can present it here.
-
Entegrity wind systems is a leading manufacturer of commercial-scale wind turbines with installations worldwide.
-
The Japan Amateur Radio League (JARL) is cautiously watching new developments concerning the commercialization of Power Line Communications (PLC), while continuing to carry out joint experiments with a high speed power line communication promoters' alliance to reduce potential interference to radio communications.
-
World leading specialist in manufacturing, providing design services for small scale wind turbine systems and parts (<30kW)
-
Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
-
Ukrainian Amateur Radio League official web site of the Ukrainian Ham Radio League
-
Definition and samples of Twin Lead Cables at wikipedia
-
The Cambridge University Wireless Society (CUWS) serves as the amateur radio society for students and staff at Cambridge and Anglia Ruskin Universities, fostering interest and activity in two-way radio communication. It provides a platform for members to engage with various aspects of amateur radio, including operating, technical experimentation, and community building within the university environment. The society's activities typically encompass station operation, antenna construction, and participation in contests and DXing. As a university-affiliated club, CUWS offers practical experience in radio theory and application, often utilizing the club callsign _G6UW_. Members learn about different modes of operation, such as CW, SSB, and digital modes, and gain hands-on experience with transceivers and associated equipment. The society's focus includes preparing members for amateur radio licensing exams and promoting ethical operating practices. Participation in CUWS provides a foundation for future involvement in the broader amateur radio community.
-
Six members of the Japan Amateur Radio League (JARL) Kyoto Club, made a DX-pedition to the Federated Stetes of Micronesia (FSM) in summer 2007. This was one of the events celebrating our club's 60th anniversary. IOTA: OC-010 (Pohnpei Islands)
-
A website for college and university amateur radio clubs to showcase themselves, work together, and promote amateur radio. Alumni and interested people can learn more about what college and university amateur radio clubs are doing.
-
The premier flea market for radio, electronics, Computer & communications equipment in Indianapolis