Search results
Query: radi
Links: 3581 | Categories: 708
This query is too generic. Please try adding an additional term to focus your research.
Categories
- Technical Reference > AI Ham Radio
- Radio Equipment > Amateur Radio Accessories
- Operating Modes > Amateur Radio Astronomy
- Manufacturers > Amateur Radio Maps
- Antique Radios > Antique Radio Reference
- Shopping and Services > Antique Radios
- Manufacturers > Transceivers > CB Radio
- Shopping and Services > CB Radio Stores
- Technical Reference > CB Radios
- Shortwave Radio > Broadcasters > Clandestine Radios
- Technical Reference > Receivers > Crystal radio
- Manufacturers > Digital and Packet Radio
- Manufacturers > Digital Mobile Radio
- Ham Radio
- DX Resources > Ham Radio Awards
- Operating Modes > Ham Radio Balloons
- Technical Reference > Ham Radio Go Kits
- Shopping and Services > Ham Radio Insurance
- Ham Radio > Ham Radio News
- Shopping and Services > Ham Radio Stores
- CB Radio > Clubs > India Radio
- Internet and Radio
- Shopping and Services > Marine Radio
- Operating Modes > NPR New Packet Radio
- Shortwave Radio > Broadcasters > Offshore Radios
- Operating Modes > Packet Radio
- Shortwave Radio > Broadcasters > Pirate Radio
- Technical Reference > Programming Radio
- Software > Radio Control
- Operating Modes > Radio Direction Finding
-
The Baofeng UV-5R handheld transceiver, introduced around 2012, operates across the 2-meter (144-148 MHz) and 70-centimeter (420-450 MHz) amateur bands, offering dual-band receive and transmit capabilities. This review provides an early assessment of the radio's form factor, user interface, and general performance, noting its compact size and the inclusion of a **VFO/Memory mode** button for frequency management. The device supports both FM and narrow FM modes, with a reported power output of 4 watts on VHF and 3 watts on UHF, making it suitable for local simplex and repeater operations. Key features discussed include its 128-channel memory capacity, a built-in VOX function, and a **DTMF keypad** for tone dialing and repeater access. The review highlights the radio's ability to scan frequencies and memories, along with a dual-watch function allowing simultaneous monitoring of two frequencies. Battery life is addressed, with the standard 1800 mAh Li-ion pack providing several hours of operation depending on transmit usage. Initial impressions cover the radio's construction and the clarity of its LCD display, which shows both A and B band frequencies.
-
The brockville amateur radio club is located in the heart of the 1000 islands on the banks of the st. lawrence river.
-
The Clinton County Amateur Radio Association - Club Call W8GO
-
-
Thsi article describes a microcontroller driven semi-automatic antenna tuner capable of handling power levels up to 150 watts. The device is a low pass filter tuner manually tuned by setting the optimized L/C combination by hand and then storing the values into the EEPROM of the mictrocontroller to recall them later (seperately for each band from 80 to 10 meters including WARC bands)
-
The AA4F Key Contact Cleaner is designed for maintaining key contacts, ensuring reliable operation in 2-way radio communications. **Regular use** of this cleaner can significantly improve contact performance, reducing the risk of intermittent signals. It is particularly effective for cleaning contacts on various key types, including _straight keys_ and _paddles_. Proper maintenance extends the lifespan of your equipment, ensuring consistent operation during contests and DXing activities. Users report improved key responsiveness and reduced key chatter, which is crucial during high-pressure operating conditions. Regular cleaning can prevent oxidation and buildup, which can lead to erratic key performance. This product is essential for serious operators who rely on their equipment for successful communication.
-
To promote and practice amateur radio and HAM radio in Mumbai, India.
-
Voted the best darn Ham Radio club in Texas 7 years in a row.
-
How to work the ISS using APRS Packet Radio
-
The Conejo Valley Amateur Radio Club (CVARC) is a 501(c)3 organization incorporated as a non-profit in the State of California, and established for the benefit of the amateur radio community.
-
Founded in 1937, the Ayr Amateur Radio Group (AARG) has a long history of being the focus for amateur radio in Ayr and South Ayrshire
-
-
Here you will find information on how to become a HAM Radio operator, how to use your radio, and how to get involved here in the Nacogdoches area
-
To educate and increase the proficiency of its members concerning scientific advancement and progress in the science of amateur radio communications.
-
The history of radio documented in thousands of publications including copies of popular US and UK amateur radio magazines and newsletters since 1930s
-
The Green Valley, Arizona Amateur Radio Club
-
The resource, formerly JH6QIL's blog, now displays a service termination notice from teacup. byGMO, the hosting provider. It explicitly states that the teacup. byGMO service ceased operations on August 1, 2022. The page conveys a message of gratitude to users for their past patronage of the platform. This content serves as an archival record of the service's discontinuation rather than an active amateur radio blog. The original blog content from **JH6QIL** is no longer accessible through this URL, indicating a complete cessation of the hosted service.
-
Sisterhood Of Amateur Radio
-
Amateur Packet Reporting System (APRS) operations often require compact, reliable solutions for transmitting position data, particularly for mobile or portable stations. This resource details the construction of the _Tiny Track-I_, a transmit-only APRS tracker designed for straightforward integration with a VHF radio and a Global Positioning System (GPS) receiver. It enables hams to broadcast their location without the complexity of a full-duplex TNC. The project outlines the printed circuit board (PCB) layout and schematic, based on an original design by N6BG, with a personal PCB drawing by SV1BSX. It includes specific component placement and notes an additional 10uF/10V capacitor (C5) for improved IC voltage decoupling, a modification not present in the original N6BG diagram. The unit connects to a computer or GPS via a DB9 female connector. This tracker is ideal for basic position reporting, offering a simple and effective way to participate in APRS networks. Its small footprint makes it suitable for vehicle installations or field deployments where space is limited, providing a **reliable 9600 baud** data stream for location updates.
-
The G5O Contest Group blog documents contest operations and related activities of the Stockport Radio Society. It covers various **HF** and **VHF** contests, providing insights into station setup, antenna configurations, and operational strategies employed during events. The content frequently includes post-contest analyses, discussing scores, propagation conditions, and technical challenges encountered. The blog entries detail specific contest participations, often featuring photographs of the operating environment and equipment used. It serves as a chronicle of the group's contesting history, offering practical examples of multi-operator station management and logistical planning for competitive amateur radio events. The group's focus on both local and international contests is evident through the range of events covered. Regular updates provide a continuous record of the group's engagement in the amateur radio contesting community.
-
-
VU2NAN Nandu's Crystal Radio Pages
-
Ham radio club in west Los Angeles
-
Christchurch Amateur Radio Club Branch 05 of NZART ZL3AC
-
Resource page for the ICOM IC-R75 at RadioReference
-
The Poole Amateur Radio Society (G4PRS) conducts weekly meetings every Thursday from 19:30 to 22:00 at St Aldhelms Church Hall in Branksome, Poole. The society provides comprehensive training courses for all levels of amateur radio licensing, including Foundation, Intermediate, and Advanced qualifications, supporting new entrants and experienced operators in their progression through the UK licensing structure. Members engage in diverse aspects of the hobby, fostering a vibrant community for local hams. Key activities include participation in various contests and events, reflecting a broad interest in radio communications. The society's commitment to education is evident through its structured _licence training_ programs, which prepare candidates for RCF examinations. The club maintains an active presence, with interests spanning general amateur radio operation, contests, and technical experimentation, as indicated by its historical association with figures like _Marconi_ and its support for events such as JOTA.
-
The TECLA Thirty, an early wireless age crystal set, is featured among a gallery of over 100 collectible headphones, with detailed close-up photos of vintage models. Several pages offer vintage headphones for sale, including Brandes, Baldwin, and Western Electric, suitable for crystal set use or collecting. Construction details are provided for a reproduction KILBOURNE AND CLARKE crystal set, built with vintage 1920s parts and featuring a miniature variable condenser for fine tuning. The resource also presents a project for a simple crystal radio and a 1-tube amplifier, complete with a schematic and component diagram, suitable for driving a horn speaker or amplifying weak signals for headphones. Instructions for mounting argentiferous galena detector crystals are included, along with information on MRL Handbooks covering crystal detectors and modern diodes. Additional projects include a 2A3 single-ended triode tube amplifier and two stereo tube amps using 12AX7, 6V6, 5Y3G, 6SN7, VT-25, and 5U4G tubes.
-
The Dixie Amateur Radio Club, Inc. is an association of federally licensed Amateur Radio operators (also known as "ham radio" operators) who primarily reside in southwestern Utah, mostly in the greater St. George City metropolitan area.
-
An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
-
Sponsors of WAVE, WACAN awards
-
Big Rapids is located in central Michigan and is home to about 11,000. Big Rapids is also home to Ferris State University and the Big Rapids Area Amateur Radio Club
-
G2XV G8EVY 1919 - 2010 Promoting Amateur Radio in Cambridge for over 90 years
-
The radio beacon DI2AM on museum-ship in Rostock Schmarl
-
Drake Radio Service & Repair, Refurbishing Services
-
Milton Amateur Radio Club is located in Milton, Florida about 20 miles east of Pensacola, Florida. Drop by and visit our web site.
-
A blog by W1REI dedicated to ham radio hobby
-
Established in 1938 & Celebrating 72 years of Amateur Radio in Gippsland & Latrobe Valley
-
-
Radioamateurs Grimbergen, sectie NBT, UBA, ON6NB Belgium
-
The Wanganui Amateur Radio Society Inc., Branch 48 NZART New Zealand
-
-
-
Shelby Amateur Radio Club - hosts of one of the largest Hamfest in the country. Still the Shelby Amateur Radio Club's Shelby Hamfest but now in Dallas, NC
-
Serving Austin and Surrounding Counties
-
-
An interesting article about a homemade LiFePO4 battery pack for ham radio operations, a 10Ah LiFePO4 based on Headway 38120 Cells
-
Using RadioMobile to evaluate Meteor Scatter DX-pedition sites
-
An article on how to measure electrical current with a digital multimeter or analogue multimeter.