| Top Amateur Radio Websites - Issue 2515 Vertical vs. Horizontal Loop Antenna Performance on HF Bands, Twigger, Elektrodump.nl, The QRP Adventures of VE3FI, ZS6WAR AEA MM3 Morse Machine Contesting Software,
 POTA SOTA WWFF Ham Radio Map
 This map was created from the need to have a map for WWFF activity. ... - Listed in Operating Aids/Maps
 Portable Vertical Antenna Design for Hams
 This page offers a tool for hams to design vertical antennas for portable use ... - Listed in Antennas/Vertical
 ARRL Audio News July 25, 2025
 
 ARRL Audio News July 25, 2025 Amateur Radio Helps Locate Missing Mother and Son
 
 Amateur radio had a crucial role in locating a mother and her 9-year son lost in California’s Stanislaus National Forest. On Friday July 11, 2025, the pair was reported overdue from a day trip to Camp Wolfeboro, a popular scout camp in the Sierra Nevada Mountains, according to a news release. On Saturday July 12, the Calaveras County Volunteer Search and Rescue Team (SAR) was conducting its mont... Design End-Fed Half-Wave Antenna | Portable Antennas
 This page provides guidance on designing an End-Fed Half-Wave (EFHW) or Random-Length antenna for ... - Listed in Antennas/End-Fed/End Fed Half Wave Antenna
 QSL Manager Joseph L. Arcure, Jr., W3HNK, Passes Away at 91
 
 This obituary has been written by and provided to ARRL by The Daily DX. With deep respect and gratitude, the amateur radio community commemorates the life of Joseph L. Arcure, Jr., known worldwide by his callsign, W3HNK. Born on Christmas Day, 1933, in Scranton, Pennsylvania, Joe’s life was as vibrant and far-reaching as the radio waves he cherished. He leaves behind a legacy defined by devotion... Coaxial Collinear Antenna Calculator - Antenna Designer Tool
 This page offers an online antenna designer tool for Hams to calculate the dimensions ... - Listed in Antennas/Collinear
 Quarter Wave Antenna Calculator - Online Antenna Designer
 This page offers an online tool to calculate the dimensions for a quarter wave ... - Listed in Antennas/Vertical
 ARRL Files Comments to Protect 70-Centimeter Amateur Band
 
 ARRL The National Association for Amateur Radio® has filed comments with the Federal Communications Commission (FCC) to oppose part of an application that would impact the 70-centimeter amateur band for telemetry, tracking and command (TT&C) of satellites. The application, from AST & Science, LLC (AST), requests “unprecedented authorization to 430-440 MHz for a constellation totaling 248 satell... Lightweight Moxon Antenna Design for HF and VHF Bands
 This page provides information on designing a lightweight Moxon antenna for the upper HF ... - Listed in Antennas/Moxon
 DIY 25 Watt QRP Dummy Load Project
 This page provides a detailed guide on building a 25 Watt QRP dummy load ... - Listed in Technical Reference/Dummy Loads
 J Pole Antenna Calculator - Calculate Dimensions for J Pole Antenna
 This web page offers an online antenna designer tool for hams to calculate the ... - Listed in Antennas/J-Pole
 Top Amateur Radio Websites - Issue 2514
 The Bazooka Antenna, 80 Mtr Vertical project, A Practical 1:1 Current Balun, From Parts to Packet: Building an APRS MicroModem, A new paddle with no moving parts, A Simple SO2R Contest Station,
 SunCalc - Sun Movement and Sunlight Phase Tracker
 SunCalc is a tool that displays the movement of the sun and sunlight phases ... - Listed in Operating Aids/Time
 ARRL Audio News July 18, 2025
 
 ARRL Audio News July 18, 2025 Radio Relay International and ARRL Sign Memorandum of Understanding
 
 Radio Relay International® and ARRL The National Association for Amateur Radio® Sign Memorandum of Understanding ARRL The National Association for Amateur Radio® (ARRL®) and Radio Relay International® (RRI) have signed a Memorandum of Understanding (MOU). [PDF] The formal agreement, signed by ARRL President Rick Roderick, K5UR, and RRI Board Chairman James Wades, WB8SIW, outlines the value the o... Changes in the ARRL Pacific Division
 
 Dr. Carol Milazzo, MD, KP4MD, of Citrus Heights, California, has been appointed Vice Director of the ARRL Pacific Division, effective July 9, 2025. She replaces John Litz, NZ6Q, who acceded to the position of Director in May. She will serve the remainder of a three-year term ending December 31, 2025. Since 2015, Dr. Milazzo has served as Section Manager of the ARRL Sacramento Valley Section. She... FlexRadio Equips ARRL with FLEX-8000 Series Station for W1AW
 
 There is a new addition to Studio 1 at W1AW, the Hiram Percy Maxim Memorial Station at ARRL Headquarters in Newington, Connecticut: a complete station of the latest gear from FlexRadio, including a FLEX-8600™ Signature Series SDR transceiver, a Maestro C Control Console, Power Genius XL (PGXL) amplifier, and Radiosport RS60CF headset. The equipment is the latest addition to W1AW, which hosts a ... Changes in the ARRL Atlantic Division
 
 Martin “Marty” Newingham, AG3I, of Greensburg, Pennsylvania, has been appointed Vice Director of the ARRL Atlantic Division, effective July 15, 2025. Newingham will serve the remainder of a term that expires December 31, 2026. He replaces Martin J. “Marty” Pittinger, KB3MXM, who resigned from the position in April. Newingham is an ARRL Life Member and a Gold level contributor to the ARRL Diamond ... Changes in the ARRL Sacramento Valley Section
 
 Jay Ballinger, N6SAC, of Antelope, California, has been appointed Section Manager of the ARRL Sacramento Valley Section, effective July 16, 2025. He will serve the remainder of a term that expires on September 30, 2027. He replaces Dr. Carol Milazzo, MD, KP4MD, who was appointed as Pacific Division Vice Director. Dr. Milazzo has served as Section Manager since 2015. The ARRL Field Organization is... Azimuthal map Generator
 Online coloured Azimuthal Map Generator. By default, this map shows the current gray line. ... - Listed in Operating Aids/Maps
 Safety Stand-Down: Look Up and Live
 
 By Sierra Harrop, W5DXARRL Public Relations and Outreach Manager
 
 Electricity is a killer. About 150 people die each year at work from contact with electricity, according to the Electrical Safety Foundation International. Half of those are from contact with power lines. That data is just workplace deaths, so recreational and public service volunteering aren’t even accounted for. In a recent articl... Quagi Antenna for 432 MHz
 Antenna project for a home made quagi antenna for UHF Bands, 432 MHz. This ... - Listed in Antennas/Quagi
 Slim Jim Antenna Calculator - Design Your Antenna Online
 The Slim Jim Antenna Calculator is an online tool that helps hams design a ... - Listed in Antennas/Slim Jim
 4DX Dipoles-Beam Antenna: Design, Build and Performance
 This page provides detailed information on the 4DX directional wire beam antenna designed by ... - Listed in Antennas/Multiband
 Top Amateur Radio Websites - Issue 2513
 Simple TEFV Antenna for Backyard or Park Use, About Baluns, Ununs, Chokes, Isolators, and Transformers, Kanga Products, Compact Circularly Polarized Quadrifilar Antenna Design, Long Range LoRa Communication, Yaesu FT-847: A Versatile Transceiver for VHF DXing and Beyond,
 Delta Loop Antenna Designer: Amateur HF Band Vertical-Plane Antenna
 This page allows hams to design a vertical-plane delta-loop antenna for a single amateur ... - Listed in Antennas/Delta loop
 K5USS 6 Meter Hentenna Project
 The K5USS 6 Meter Hentenna Project page on Hamuniverse provides detailed instructions on how ... - Listed in Antennas/6M
 Young Ladies Radio League - YLRL  Women in Amateur Radio
 The Young Ladies' Radio League, also known as YLRL, is an organization founded by ... - Listed in Ham Radio/Clubs/YL
 ARRL Audio News July 11, 2025
 
 ARRL Audio News July 11, 2025 'Tripp' Owens, N4NTO, Silent Key
 
 Ambrose "Tripp" L. Owens, III, N4NTO, passed away on July 4, 2025. He was 57 years old. Investigators from the Harnett County Sheriff’s Office in North Carolina believe the cause of death was accidental electrocution but a final determination has not been made. Owens was working with an antenna mast in the Chicora Civil War Cemetery at the Averasboro Battlefield during a Parks on the Air (POTA)... Special Call Signs for this year’s International Amateur Radio Union (IARU) Contest
 
 Great Numbers Stacking Up for 2025 ARRL Field Day
 
 The numbers for 2025 ARRL Field Day continue to grow. As of today, July 10, 3227 entries have been received and each day the list gets bigger, according to ARRL Contest Program Manager Paul Bourque, N1SFE. “Get those entries in!” he encouraged. The deadline is July 29.  It was a big year for ARRL Field Day on social media. 260 public posts across several platforms used the hashtag #ARRLFD. That ... QRPGuys DS-1 40-10m Short Vertical Antenna - Build Your Own!
 Learn how to build your own QRPGuys DS-1 40-10m short vertical antenna for ham ... - Listed in Antennas/Vertical
 
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