Designing a Modular DC Receiver with Tunable Preselector for HF Listening
This project details the development of a modular direct conversion (DC) receiver designed for ... - Listed in Technical Reference/Receivers
ARRL Audio News November 22, 2024
ARRL Audio News November 22, 2024
25th Annual SKYWARN Recognition Day December 7, 2024
SKYWARNTM Recognition Day is December 7, 2024. The annual event is celebrating its 25th anniversary. SRD was established in 1999 by the National Weather Service and ARRL® to commemorate the contributions of SKYWARN volunteers. Using amateur radio and other means of communication, SKYWARN spotters provide real time ground truth to NWS offices. The ham-volunteers can also provide vital communicat...
New Video Promoting YouTube Telethon to Benefit Teachers Institute
The ARRL Teachers Institute on Wireless Technology is a tremendously successful advocacy for inspiring youth, and it is growing significantly. The program is entirely donor-funded, and that effort is getting a huge shot in the arm. A YouTube telethon to raise money for the program will be held on Saturday, November 30, 2024, on the Ham Radio Crash Course channel. ARRL Education and Learning Man...
Fall Season Section Manager Election Results
On Tuesday, November 19, ballots were counted at ARRL Headquarters for the ARRL South Carolina Section Manager election that was conducted this fall. ARRL members in South Carolina have elected incumbent Matthew Crook, W1MRC, to continue as their Section Manager with a new term of office starting on January 1, 2025. Crook received 296 votes, and his opponent, Billy Irwin, K9OH, of Anderson, re...
Transforming Your Tower into a High-Performing Dual-Band DX Antenna
This article demonstrates how to convert an existing tower into a dual-band vertical antenna ... - Listed in Antennas/160M
ARRL Closing Early Nov. 21, and Closed for Thanksgiving Holiday Nov. 28 - 29
ARRL® The National Association for Amateur Radio® has two closures coming up for our headquarters in Newington, Connecticut: ARRL will close early at 12 PM Eastern Standard Time (1700 UTC) on Thursday, November 21, 2024. The ARRL Headquarters lobby and store, as well as W1AW, will be open to visitors from 8 AM to 12 PM EST on Thursday. There will be no interruptions to the W1AW bulletins or cod...
RFNM Motherboards
Manufacturer of SDR Motherboards LA9310, Si5510, i.MX8MP, 4GB LPDDR4. The RFNM motherboard is a ... - Listed in Manufacturers/Software Defined Radio
Committee Proposes Changes to ARRL By-Laws 42 and 46
Dear Member, At the 2024 ARRL Annual Meeting held in January, the Board of Directors unanimously voted to approve the establishment of a committee to assure the existence of a set of ethical standards and guidelines for Board Members as called for in ARRL By-Law 42. In addition, the committee was tasked to review By-Laws 42 (Ethics and Elections Committee) and 46 (Conflict of Interest Policy) f...
Coax Velocity Factor in Baluns
This article explores the role of velocity factor (VF) in calculating stub lengths for ... - Listed in Antennas/Baluns
Building a Multiband Vertical Wire Antenna
This article presents a comprehensive guide to constructing a multiband vertical wire antenna. The ... - Listed in Antennas/Multiband
Reviving the 3 Transistor Short Wave Radio
This article explores the revival of the classic 3 Transistor Short Wave Radio kit ... - Listed in Technical Reference/Homebrew
Comparative Testing of DIY and Commercial Antennas for ADS-B Reception
This project focuses on testing and comparing various antennas for receiving ADS-B (Automatic Dependent ... - Listed in Antennas/Receiving
The RDF 10 seconds unfold Yagi
The RDF 10 second fold-out Yagi especially for fox hunting. have more fun stuff ... - Listed in Antennas/Yagi
Fort Purbrook Amateur Radio Club
With the reputation of being the most active amateur radio club in Hampshire, we ... - Listed in Ham Radio/Clubs/Europe/UK/Southern England
Top Amateur Radio Websites - Issue 2443
Maritime Radio Room Clock, WeatherFax Stations, LoRA Experiments, Morsle, LC Resonant Frequency Calculator, Weather Fax plugin for OpenCPN, How to renew your FCC Licence,
ARRL Audio News November 15, 2024
ARRL Audio News November 15, 2024
ARRL November Sweepstakes Phone November 16–18
NCVEC Question Pool Committee Removes Two Pool Questions From Use
The National Conference of Volunteer Examiner Coordinators (NCVEC) Question Pool Committee (QPC) has removed one Extra Class pool question and one General Class pool question from use. Both Extra pool question E2A13 and General pool question G8C01 have been deleted from use on examinations as the two questions each have more than one correct answer. The deleted questions must be removed from ex...
2024 ARRL Board of Directors Election Results
ARRL® The National Association for Amateur Radio® announces the results of the 2024 ARRL Division elections. In the ARRL New England Division, Tom Frenaye, K1KI (1,593 votes), of West Suffeld, Connecticut, was declared the winner, defeating current Director Fred Kemmerer, AB1OC (1,452 votes). Frenaye has previously served on the ARRL Board of Directors in several capacities, including as Director...
Filter Free
Filter Free is the shareware version of Filter Solutions and Filter Light. Filter Free ... - Listed in Software/Filter Design
Yaesu FTM-150 New Transceiver
New yaesu FTM-150 dual band VHF UHF FM Transceiver featuring 55W VHF and 50W UHF
Pressure paddle
The Pressure Paddle V2.0 simplifies the original 2019 design by using MOSFETs’ unique properties ... - Listed in Technical Reference/Morse Keys
DIY A Cantenna For Your WiFi Network
A DIY cantenna can extend your WiFi range by building a 2.4 GHz high-gain ... - Listed in Antennas/WiFi
Broadcast band filter
This project involved designing a 7-pole Chebychev broadcast band filter to address severe interference ... - Listed in Technical Reference/Filters
The F6AOJ RX splitter project
The F6AOJ RX splitter project was created to split the antenna signal from an ... - Listed in Technical Reference/Antenna Switch
Open Source in Amateur Radio
The Open Source in Amateur Radio wiki provides information on open-source software, hardware, and ... - Listed in Software/Collections
5/8-wavelength GP vertical antenna calculator
A 5/8 λ antenna, often thought to be ideal for all frequencies, has unique ... - Listed in Antennas/Antenna Calculators
Top Amateur Radio Websites - Issue 2442
How To Build a Rotator Controller with a Computer Interface , G6HKS Yagi Kits & Parts, Impedance Calculators Online, Building a 4-Element Yagi Antenna for the 6m Band , RF Feedline Power-Loss Calculator, SOTA Goat, HamAlert Cluster Client,
ARRL Audio News November 8, 2024
ARRL Audio News November 8, 2024
Amateur Radio Activated for Late Season Hurricane
A rare November hurricane made landfall in western Cuba as a Category 3 storm Wednesday and continued to move slowly toward the northwest Thursday morning. Volunteer ham radio operators were there to provide surface reports to the National Hurricane Center in Miami. Hurricane Rafael left Cuba’s 10 million residents without power and on Thursday afternoon was a Category 2 storm moving away from C...
Rare California Island to be Activated for Armed Forces Day, First Time in 53 Years
On Armed Forces Day, May 1971, 53 years ago, two amateur operators working as WZ6SNI, activated San Nicolas Island, IOTA NA-066. At 61 miles, San Nicolas is the most remote of the Channel Islands off the coast of Southern California and is owned by the US Navy. Now, weather permitting, Will Costello, WC6DX, has been authorized to be active from San Nicolas Island November 8 - 12, 2024. He is tak...
2024 ARRL Field Day Results Published
Results are published, and the numbers are in. They paint a picture of a very active 2024 ARRL Field Day. Nearly 1.3 million contacts were reported during the 24-hour event. That is up from 2023’s 1.25 million contacts. That’s likely indicative of the continued rise of Solar Cycle 25 leading up to the event, but more people also participated this year. Entries were received from all 85 ARRL and ...
Collinear Antenna Calculator
The collinear antenna, or Marconi-Franklin antenna, is an omnidirectional, high-gain antenna composed of in-phase ... - Listed in Antennas/Antenna Calculators
ARRL Opening Late on Friday, Nov. 8 and Closed on Veterans Day, Nov. 11
ARRL® The National Association for Amateur Radio® has two closures coming up for our headquarters in Newington, Connecticut: ARRL will be closed on Friday morning, November 8, 2024, for an employee meeting. During the short closure, members are encouraged to use the ARRL website, www.arrl.org, for membership renewals, publication purchases, and to access most benefits, services, and programs. T...
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