Electronics Notes Virtual Vintage Radio Museum and Directory
In recent weeks at Electronics Notes, we have started adding a virtual museum and directory of various vintage radios of all sorts from old crystal antiques radios to vintage valve / tube radios, ex-government communications radios, ham radio equipment through to early transistor radios and the like
ARRL Audio News - July 16, 2020
ARRL Audio News - July 16, 2020
Cumberland Valley Amateur Radio Club
Chambersburg Pennsylvania
600W LDMOS Power Amplifier
Technical Reference/Amplifiers/HF Amplifiers
A comeplete home made 600W LDMOS RF power amplifier. Settings can be made on a 7-inch touch screen, and on this screen you can see a lot of useful information during operation, such as output power, temperature, SWR, and so on. The power amplifier includes 2 MRF300 LDMOS FETs and several built-in sensors. The amplifier also contains several types of protection functions like too high current, too high swr, too high temperature, etc.
Top Amateur Radio Websites - Issue 2127
Homebrewing a 6 Meter Yagi, Online Toroid Multi Calculator, RF Impedance Matching Calculator, IAT Interactive Antenna Table , Basic Microwave Antennas, FT-817 CAT interface, 17 meter QRP Transmitter,
ARRL Headquarters Holds Rededication Ceremony
On Thursday, July 15, at 10 AM EDT, ARRL Headquarters in Newington, Connecticut, hosted a rededication ceremony, recognizing ARRL’s commitment to all radio amateurs who enhance the communications capability and security of the nation. The event coincided with the attendance of ARRL’s all-volunteer Board of Directors, who had traveled in from across the country for in-person committee and Board ...
Most 2021 Field Day Participants Entered in Class D
Hermes-Lite SDR Project
Technical Reference/Software Defined Radio
The author has build the Hermes-Lite SDR v1 and v2 versions describing with a very accurated text and picture the process. Additionally has documented measurements for each component
Youth on the Air campers enjoy successful ISS contact, busy with other activities
The first Youth on the Air (YOTA) camp for young radio amateurs in the Americas wraps up on Friday in West Chester, Ohio. Among other activities, the campers have been operating special event station W8Y from both the National Voice of America Museum of Broadcasting and from the camp hotel
Farside explosion touches Earth
Something just exploded on the farside of the sun. The blast was so potent, it peppered Earth with energetic particles even though the body of the sun was blocking the blast site
Introduction to Antenna Modeling using EZNEC
Introduction to Antenna Modeling using EZNEC will be presented by Greg Algieri WA1JXR at the next QSO Today Virtual Ham Expo coming August 14th and 15th
Cuba: IARU Region 2 congratulates FRC on 55th anniversary
IARU-R2 has sent its congratulations to Federación de Radioaficionados de Cuba on its 55th anniversary
MOTA - Mines On The Air
Most people are familiar with IOTA, SOTA, POTA, etc. Less well known, however, is MOTA or Mines On The Air
Repeater troublemaker caught red-handed!
Switzerland's national amateur radio society USKA reports on action to tackle the problem of repeater abuse
ComoxValley Amaeur Radio Club
Official web site of the Comox Valley ARC
N.T.R.S. The Northern Tier Repeater System
The NTRS is an Amateur Radio Club located in North Central Pennsylvania with four repeaters
Slot-Cube Antenna for 6 Meters
Antennas/Skeleton Slot
Slot cubes are folded skeleton slot antennas with widened, folded dipoles bent into a cube to reduce size. QST Article 12 2019
Ham radio in Yachting Monthly mag
Yachting Monthly magazine looks at the use of amateur radio on the ocean waves and interviews Bill Walker M0WTW
RSM needs your input
New Zealand's Radio Spectrum Management says: We need your input to help us improve the products and services we provide to radio spectrum clients
Ofcom Consultation: Licence fees for 2100 MHz spectrum
Ofcom has published the proposed annual licence fees for spectrum licences in the 2100 MHz band
NASA TV to air launch of Space Station module, departure of another
NASA will provide live coverage of a new Russian science module’s launch and automated docking to the ISS, and the undocking of another module that has been part of the orbital outpost for the past 20 years
Amateur radio tower: Judge says Framingham zoning board of appeals 'erred'
A judge overturned a ZBA decision and ruled a magnificent 80-foot high amateur radio tower can be erected in the City of Framingham
June 2021 Volunteer Monitor Program Activity Report Released
The June 2021 activity report of the Volunteer Monitor (VM) Program has been released. The VM Program is a joint initiative between the ARRL and FCC to enhance compliance in the Amateur Radio Service. - The FCC was requested to review a vanity call sign application filed by a Georgia licensee because of an apparently false answer to the question regarding a felony conviction.
- A licensee in Massach...
Young Caribbean Nation Formalizing Amateur Radio Guidelines and Standards
With a population just north of 71,000, the Caribbean island country of Dominica (J7) boasts a modest but active ham radio population. Given Dominica’s vulnerability to hurricanes, the ham radio emphasis often focuses on emergency communication support. In 2017, after Hurricane Maria hit the tiny island, ham radio filled a huge telecommunications gap. Now the country’s telecommunications regula...
Youth on the Air Campers Activating W8Y, ARISS Contact Set for July 14
The first Youth on the Air (YOTA) camp for young radio amateurs in North, Central, and South America is now under way in West Chester, Ohio. Among other activities, campers are operating special event station W8Y from both the National Voice of America Museum of Broadcasting in West Chester Township and from the camp hotel. The camp will run until Friday, July 16. The approximately two dozen ca...
High Speed Telegraphy Club
High Speed Telegraphy enthusiasts club established in 1952
KARS Annual Hamfests at Peotone, IL
KARSFEST, held at the Will County Fairgrounds. Sponsored by the Kankakee Area Radio Society. Large and well attended hamfest and computer show!
Audio CW Filter
Technical Reference/Filters
An home madek Audio CW Filter made simply using SMD Components
Youth On The Air 2021 Jeri Ellsworth
I was asked to share why ham radio had a major impact on my life
Dominica formalizing Amateur Radio Guidelines and Standards
The ARRL reports on the consultation being held in Commonwealth member Dominica about new amateur radio rules. The regulator NTRC has studied existing regulations in Australia, Canada, Saint Lucia and USA
Fun with HF QRP pedestrian mobile
Fun with HF QRP pedestrian mobile will be presented by Peter Parker VK3YE at the next QSO Today Virtual Ham Expo coming August 14th and 15th
Ofcom proposes cell-phone mast power increase
UK regulator Ofcom plans to double the power used by cell-phone masts in the 800 MHz band. Permitted power will increase from 1259 watts/(5 MHz) to 2512 watts/(5 MHz) EIRP
ARISS contact scheduled for Youth on The Air Camp (YOTA) 2021
Amateur Radio on the International Space Station (ARISS) has received schedule confirmation for an ARISS radio contact with astronauts
Cosmic ray update: Atmospheric radiation is changing
Something is happening to the air above our heads
Kit building at Youth on the Air (YOTA) Camp
A video of the first full day of Youth on the Air Camp Americas 2021 has been released, featuring Kit Building and Contesting
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