Amateur spectrum addressed in US House Reconciliation Bill
Within two years not less than 600 megahertz must be identified from between 1.3 and 10 GHz for reallocation to commercial use for broadband services.
ARRL

Hamvention 2025 wrap-up
The future of Amateur Radio is strong.
K4HCK

Hamvention brings the world to Greene County
Organizers estimate that this year’s turnout exceeded the 35,000 attendees of 2024.
Xenia Gazette

AMSAT volunteers power Hamvention exhibit
Live satellite demonstrations outside of the exhibit area drew interest from Hamvention participants.
AMSAT

Highlights from 2025 Dayton Hamvention
The ARRL Lab tested more than 170 radios in the booth, including a handheld radio that fell 14,000 feet.
ARRL

The 2025 Four Days in May Symposium
An Introduction to LTspice, A Tube Transmitter for SOTA, SSB for the QMX, and more.
KB6NU

2025 Four Days In May (FDIM) Photo Gallery
If you’re a QRPer and haven’t made it to FDIM yet, I can’t recommend it enough.
QRPer

Another Hamvention done
The FreeDV project demonstrated the benefits of Radio Autoencoder (RADE).
FreeDV

Wandering around Hamvention 2025
I wandered around the grounds, asking other hams what the coolest and strangest things that they found at the festival.
KB9VBR

Video

ARISS Hamvention Forum: 25 years of continuous operation on ISS
Demonstrating the ARISS 2.0 vision with Fram2Ham.
Hamvention

Hamvention floor walk 2025
Take a tour of Hamvention 2025.
KM4ACK

Hamvention: Thousands flocking to Xenia this weekend for Amateur Radio show
Last year’s attendance was 35,000, more than the population of the entire city of Xenia.
Dayton Daily News

ARRL seeks entry-level HF privileges in FCC proposal
Amateur Radio association said filing reflects need to update rules for digital modes.
RadioWorld

ARRL renews defense of the 902-928 MHz Amateur Radio band
The FCC is considering a petition by NextNav, Inc., a licensee in the 900-MHz Location and Monitoring Service (LMS), to reconfigure the 902-928 MHz band.
ARRL

Record-breaking participation in 2025 Amateur Radio exam in Bangladesh
More than 900 participants took part in an examination organized by the Bangladesh Telecommunication Regulatory Commission.
QRZ

Pile-up speedbumps: The QSO Killers
Disruptions in a pile-up arise when DX hunters deviate from the expected rhythm of a standard QSO.
Delta Alfa

Radio apocalypse: Meteor burst communications
The world’s militaries have always been at the forefront of communications technology.
Hackaday

Matching an EFHW antenna – a third way
Despite the advantages, the EFHW has its critics.
Ham Radio Outside The Box

Khanfar software: RTL-SDR CFAR mask analyzer
This powerful tool combines advanced Constant False Alarm Rate (CFAR) algorithms with innovative Frequency Mask Trigger (FMT) techniques to provide reliable signal detection even in challenging RF environments.
RTL-SDR

Video

Bird feeder HF antenna
A balcony-anchored “motorized bird feeder” antenna with amazing radials.
Ham Radio Perspectives

HamSCI: Space weather we can do together
What’s next for HamSCI, including new developments in the HamSCI Personal Space Weather Station project.
RSGB

This ambulance Is actually a mobile Ham shack
From HF radios and power distribution to antennas and off-grid capability.
Broken Signal

Meshtastic Event firmware for Dayton Hamvention 2025
Last year’s mesh chaos? We remember 😅 This year, we’re ready for it.
Meshtastic

Zero Retries Digital Conference 2025 call For papers
Technical papers are sought for the in-person inaugural Zero Retries Digital Conference (ZRDC).
Zero Retries

Announcing 2025 award recipient: Sebastian Delmont (KI2D)
Ham2K Portable Logger, a groundbreaking project, has been selected as the winner of the 2025 annual Amateur Radio Software Award.
Amateur Radio Software Award

The sun’s 100-year “Gleissberg Cycle” is waking up
The next few solar cycles could be even more intense.
spaceweather.com

How to process an Earth-Venus-Earth radar return signal
Each transmission was 278 seconds long. This time span was selected because it equaled the expected round-trip time from Earth to Venus and back.
Open Research Institute

What is M17?
Open Source gives you freedom: freedom to enjoy, freedom to innovate, and freedom to use the M17 protocol.
Random Wire

Tornado siren test net
Tracking down maintenance issues during these tests is a small but essential part of emergency preparedness.
W8EMV

Fixing an antenna at the top of a 35-foot tower
The problem: Jim’s antenna wasn’t performing well.
Ham Radio Prep

Ham Radio Day ignites STEM curiosity in Northwest Ohio
Amateur Radio is full of career choices! It can lead you in so many directions.
The Village Reporter

Islanders say they cannot escape the mysterious humming
Islanders in the Outer Hebrides say their lives are being disrupted by a mysterious low frequency humming sound that can be heard day and night.
ICQ Podcast

Video

Inside ARDC: Bdale KB0G on funding the future of Ham Radio
The private foundation quietly reshaping the future of Ham Radio.
Q5 Worldwide Ham Radio

Mobile antenna lift using a linear actuator
For about 50 bucks and a little time, raising and lowering mobile antennas is a breeze.
WB6JWB

10 keys to selling used Ham Radio gear
How to sell used Amateur Radio gear safely and successfully.
Ham Radio Perspectives