Exploring the Caged Hen-Delta Antenna
This is a versatile ‘little’ loop antenna with a tiny turning radius, surprising DX performance, and stunning broadband qualities when caged.
AEOEN

First look at the HF Signals zBitx QRP Transceiver
An all-mode 80-10m QRP radio with a waterfall and weighing under 1 pound for under $200 USD shipped.
QRPer

Connecting the dots: Protecting and improving Amateur Radio access to 219-220 MHz
The twin challenges: Interference and regulatory burden.
Open Research Institute

Could Agent Sonya have done it? (It: QRP CW on 40 meters in 1939)
I believe Agent Sonya could have constructed the rig.
Copasetic Flow

We just lost the moon
Whether or not the global Amateur Radio community has any “buddies” in the Chinese space program, we need to make some.
KE9V

1946 Philips 170A-15 RadioBerry receiver project
Build a nice shortwave receiver for the radio shack based around the RadioBerry HAT on a Raspberry Pi 4 housed in a vintage receiver cabinet.
M0AWS

Ham Radio for preppers
I want to help expand knowledge of people, in particular those who want to become Amateur Radio Operators, and Preppers.
Ham Radio for Preppers

In an uncertain time, Ham Radio sees a signal boost
Amateur Radio enthusiasts have been preparing for emergencies for decades. Now their expertise is drawing packed rooms of newcomers.
INDY Week

Italian Radio Amateurs can use 70 MHz (4m) and 40 MHz (8m) band until end of 2025
The 70.200 MHz segment coincides with the SSB centre of activity.
EI7GL

Bid on a piece of NYC radio history
Alford FM antenna elements from Empire State Building go to auction.
RadioWorld

Video

Best POTA sites around Dayton
The five best POTA sites to activate while you are in town for Hamvention.
K8MDB

SDR Television
A DVB-S2 / AAC / H264 / H265 program for use on the QO-100 satellite.
Tech Minds

ARRL files comments responding to FCC request for input
It is hoped that the Commission will incorporate worthy suggestions in a future Notice of Proposed Rulemaking (NPRM) later this year.
ARRL

FCC’s “Delete, Delete, Delete”
Is Ham Radio at risk?
Ham Radio Prep

Will tariffs affect the cost of Ham gear?
An analysis from Connect Systems.
KB6NU

Geomagnetic ground currents in North America
On April 16th, a severe geomagnetic storm caused electricity to flow through the rocks and soil of North America.
SpaceWeather.com

Tuning into innovation: How Ham Radio is powering scientific curiosity
On World Amateur Radio Day, we explore how this timeless tech continues to inspire innovation, build inclusive communities, and promote hands-on science education.
The New Indian Express

Three mysterious new shortwave stations approved in the U.S.
Past filings and meeting summaries suggest possible ties to high-frequency financial data transmissions, a purpose not authorized under current broadcast rules.
SWLing Post

Small talk, from afar
Students are trying to revive the Harvard Wireless Club.
Harvard Magazine

Wayne’s solution for sealing outdoor RF connectors
Consider the benefits of double-walled heat-shrink tubing.
RadioWorld

A Pi-based LiDAR scanner
Although there are plenty of methods for effectively imaging a 3D space, LiDAR is widely regarded as one of the most effective methods.
Hackaday

Extended hours for Voice of America Museum during Hamvention
Our Amateur Radio station WC8VOA will be on the air to operate.
Amateur Radio Daily

Video

What happened to Heathkit? The Ham Radio legend that vanished
Educating, entertaining, and helping radio enthusiasts to learn more about the history and stories behind the technology we enjoy.
Ham Radio Gizmos

Steam in the crater at Mount Saint Helens with Ham Radio operations
2-Meter FM Ham Radio operations were conducted throughout the flight.
W7NY

Ham community frets in “Delete, Delete” comments
Nearly 300 commenters have already flooded the FCC’s website since Chairman Brendan Carr asked for public input on ways to eliminate burdensome regulations.
RadioWorld

Announcing Zero Retries Digital Conference 2025
The presentations at ZRDC will showcase technological innovation in Amateur Radio such as are typically discussed in the Zero Retries newsletter.
Zero Retries

ISS SSTV April 11-16 – Humans in Space
April 12 is the International Day of Human Spaceflight so, what better theme for the April 11-16 Slow Scan TV transmissions.
AMSAT-UK

RAC will not attend Hamvention this year
At its meeting on March 27, 2025, the Board of Directors of Radio Amateurs of Canada voted unanimously to cancel RAC’s plans to operate a booth at Hamvention.
Radio Amateurs of Canada

In college, I founded an FM station. It’s 50 years later…
With a lot of help from some other students, a couple of faculty members and two administrators, we got this across the goal line right after I had graduated. Here’s how it went.
K4FMH

World Amateur Radio Day is April 18
It was on this day in 1925 that the International Amateur Radio Union was formed in Paris.
IARU

Ham radio turns 100 in South Africa
The South African Radio League (Sarl) wants to broaden its contribution to the growth of Amateur Radio in sub-Saharan Africa as the organisation celebrates its centenary next month.
TechCentral

What is IRLP?
Today, there are IRLP nodes all over the planet in frequent (sometimes constant) use.
The Random Wire

Bugs and the toupee fallacy
The Toupee Fallacy is a logical fallacy in which one thinks something is of poor quality because they only notice poor quality instances of it.
Radio Artisan

Video

Ham Radio space comms with the Arrow II antenna
Here I take my first venture into LEO satellites with the well known, Arrow II dual band hand held Yagi antenna.
Tech Minds

Proposed: Only 2 Amateur Radio license classes
A Response to the FCC and an invitation to discuss.
Ham Radio Perspectives

How to teach a one-day Tech class
This is a recording of a Zoom presentation to the Holmesburg Amateur Radio Club on Saturday, April 4, 2025.
KB6NU

Fram2 makes first Amateur Radio contact from a SpaceX spacecraft
Rabea Rogg (LB9NJ) became the first astronaut and Amateur Radio operator to make contact with Earth from a SpaceX Dragon spacecraft.
Amateur Radio Daily

FCC filing for 219 MHz rules changes from ORI
Open Research Institute (ORI) has filed the first of what might be several comments and proposed rules making efforts to the FCC about reforming Amateur Radio use of the 219 MHz band.
Open Research Institute

You’ve been warned
I just couldn’t get comfortable above about 18 words per minute.
KE9V

25 years a Ham and still learning
I felt an urge to experiment – to contribute something useful to the science of radio communications.
Ham Radio Outside the Box

Save the dates: HamSCI Meteor Scatter QSO Party
The target storms are in August 11-12 (Perseids) and December 12-13 (Geminids).
HamSCI

Letter: Here’s a copper theft mystery
You just can’t make this stuff up.
RadioWorld

SSTV capsule V2 for high altitude balloons
This project has been above 30km high sending images in real time using SSTV technology. All of this using free to use PMR walkies.
Autodesk Instructables

The zBitx: Many flaws
Four days with the zBitx has been an exercise in frustration.
AE5X

Local Amateur Radio operators keep track of “trekkers”
Mike knew there was a need for radio communications along the Micco Trail as cellphone reception can be spotty.
Highlands News-Sun

Video

Can you predict how far your VHF/UHF radio will reach?
The basics of creating real-world radio coverage maps using free tools.
Ham Radio Rookie

Quickly deploy a BBS
Simple packet BBS server deployment.
The Tech Prepper

AO-7: The satellite that refused to die
It’s tough to fit 50+ years of remarkable history into 26 minutes.
AE4JC

ARRL seeks feedback from members re FCC Public Notice
League plans to file comments on “Delete Delete Delete” FCC notice.
ARRL

Fram2Ham SSTV transmissions planned
SSTV to transmit via SpaceX Dragon spacecraft March 31st.
AMSAT-SM

Earth-Venus-Earth bounce
Amateur operators achieve Venus bounce for only the second time.
Dwingeloo

Weak-signal performance of common modulation formats
The CW number is open to debate but it performs better than RTTY and PSK31.
K0NR

FT8 – All you need to know
FT8 enables you to make contact with stations even when the conditions are too poor for voice.
M7OJA

Quantum messaging anywhere on Earth
The satellite was able to send pulses of laser light, put into special quantum states, from a rooftop in Beijing to another at Stellenbosch University near Cape Town.
Nature

CQ Amateur Radio Hall of Fame seeks nominations
Recognizing individuals who significantly affected the course of Amateur Radio.
hamgallery.com

ARRL election committee adventures
Disqualified ARRL board nominees tell their stories.
ICQ Podcast

My most embarrassing field radio fail
What’s yours?
QRPer

A Ham with one voltmeter always knows the battery voltage
A Ham with two voltmeters is never sure.
Ham Radio Outside the Box

Video

RADE: Machine learning for speech over HF radio
Presentation of the new RADE Radio AutoEncoder digital voice mode.
David Rowe, VK5DGR

Add a USB port to your Yaesu HT
Let’s leverage the AIOC (all-in-one-cable) to create a Yaesu TNC/data interface.
KM6LYW

Smol antenna, big results
K6STR Emergency Backup Antenna.
N7KOM

Bandplan Generator
Allows completely customizable frequency ranges and segments generating a well-designed plan for screen or print.
LY1JA

HamCam FrontDoor
Video chat rooms for licensed Ham Radio operators.
KE8LCM

What’s new at Digital Library of Amateur Radio & Communications
The library has grown to 149,500 items. 19.5 terabytes of information. We scanned 1.1 million pages in 2024 alone.
Zero Retries

“Bloody Saturday” at Voice of America
All full-time staffers at the Voice of America are on indefinite suspension.
NPR

The electrolytic capacitor plague
What happened to capacitors in 2002?
SolderSmoke Daily News

HamSCI Workshop 2025: A little bit of citizen science-ing
WSPR transmissions from my location were received at longer distances at the maximum obscuration of the sun.
KM1NDY

Work at club repeater site results in Ham’s termination
Club accused of pulling free electricity.
Lewiston Tribune

Mount Juliet Simplex Society
A unique approach to Amateur Radio.
TalkpodOnline

What can we do to get youth into Ham Radio?
Showing kids that there are other young people in Amateur Radio is by far the most effective way to get them interested.
OnAllBands

Video

DIY antenna from scrap material
Building a 2 meter antenna from scrap material found around the house.
KM4ACK

ZeenKo log periodic antenna 400MHz to 8GHz
A fiberglass antenna with a wide frequency range of 400 MHz to 8 GHz.
IMSAI Guy

sdrberry UI for SDR on Raspberry Pi
This user interface is just gorgeous!
Tech Minds

FCC opens comment period on deregulating everything
A new docket “In re: Delete, Delete, Delete,” seeks comment on “every rule, regulation, or guidance document that the FCC should eliminate…”
RadioInsight

From FCC – IN RE: DELETE, DELETE, DELETE
This might be the only “seize the moment” chance for large scale reform in US Amateur Radio regulations in the 2020s.
Zero Retries

The 2025 Hamvention Award Winners
The selection process was highly competitive, given the outstanding quality of nominations submitted this year.
Hamvention

Radio Connects is 2025 ARRL Field Day theme
ARRL The National Association for Amateur Radio has released the logo and theme for this year’s ARRL Field Day, June 28 – 29, 2025.
ARRL

POTA activation for International Women’s Day
International Women’s Day and the “YL POTA Party” advertised by the Young Ladies Radio League (aka: YLRL).
K8VSY

What is AmateurWire?
AmateurWire VOIP Service is a PBX phone system much like the HamShack Hotline or HamsOverIP.
The Random Wire

Snooping on the SatGus selfie satellite
The satellite is designed to take selfies of customers’ own photos in space, using a screen and a selfie camera mounted on the satellite.
RTL-SDR.com

Ground planes and automobiles—insights on mounting antennas on your vehicle
The best mobile antenna money can buy isn’t any better than the ground plane it is mounted over.
OnAllBands

Nomad Network
Off-grid, resilient mesh communication with strong encryption, forward secrecy and extreme privacy.
unsigned.io

Only the shadow (board) knows
I was briefed on this by multiple sitting Board members over the past few years.
K4FMH

KA1MUQ turns frying pan DC receiver into a double sideband transceiver
Works Idaho from California.
SolderSmoke Daily News

Video

Tapesponding
The long lost communication you’ve never heard of.
Ringway Manchester