Turn your Android phone into a modern Ham Radio transceiver
Free, open source software & hardware homebrew VHF radio.
KV4P

NASA, NOAA: Sun reaches maximum phase in 11-year solar cycle
This announcement doesn’t mean that this is the peak of solar activity we’ll see this solar cycle.
NASA

Scientists say they’ve figured out a way to intercept alien radio signals
It could be used to pick up on communications that weren’t intended to reach deep space.
The Byte

How Ham Radio endures – and remains a disaster lifeline – in the iPhone era
When disaster strikes, and conventional communication systems fail, Amateur Ham Radio operators step in to bridge the gap.
ZDNet

Radio towers causing problems for residents of northern Kentucky neighborhood
Residents of a northern Kentucky neighborhood said radio signals from nearby towers are causing all kinds of issues.
Spectrum News 1

USA Radio Orienteering Championship concludes
Medals were awarded to the top three finishers in each class of competition.
The Sun Times News

The future of emcomm
There are two important technology disruptions showing up in North Carolina: satellite-based internet (Starlink) and mobile-phone-to-satellite text messaging.
K0NR

Do you name your radios?
Lucy and Linus, the brother and sister, are both Yaesu VX-7s that were my workhorse HTs during the 2013 Southern Alberta Floods.
QRPer

Jamboree On The Air brings Scouts around the world together
Jamboree On The Air is the world’s largest Scouting event.
ARRL

Making your first simplex contact on Ham Radio
Simplex is essentially one radio communicating directly with another on the same frequency, with no need for repeaters or additional equipment.
Ham Radio Prep

Video

How net control radio operators saved lives after Hurricane Helene
Tonight I welcome Dan, K2DMG, and Thomas, K4SWL, who live in one of the several areas that were devastated by Hurricane Helene.
Ham Radio 2.0

The Truth about SWR: Debunking the myths and misunderstandings
Is there really such a thing as perfect SWR and does it really matter?
DX Engineering

Sunset flight over Mount Olympus with Ham Radio operations
Conducted 2-meter FM radio operations throughout the flight.
W7NY

Through Hurricanes Helene and Milton, Amateur Radio triumphs when all else fails
While some residents in hurricane-impacted areas can’t send texts or make calls, Amateur Radio enthusiasts are helping communicate requests for help and messages between loved ones.
WIRED

grid.radio
Location data including grid squares without the need for a data connection.
grid.radio

Antenna radiation pattern using WSPR
Using Grafana to capture the antenna radiation pattern of my Hustler 4BTV.
VE9KK

Delaware Packet Network (DEPN)
The DEPN objective is to promote and document the development of Community-Based RF-Linked Amateur Radio AX.25 and VARA Terrestrial Packet Network within the State of Delaware.
DEPN

20th century Amateur Radio organizations struggle in the 21st century
This issue isn’t confined to ARRL.
Zero Retries

International Beacon Project
These beacons help both Amateur and commercial high-frequency radio users assess the current condition of the ionosphere.
NCDXF/IARU

The Titanic 40m field expedient backpack portable antenna
Could a replica of Titanic’s giant antenna, downsized for the 40-meter band, be an effective Ham Radio antenna?
Ham Radio Outside the Box

Father of the radar detector, dead at 74
Mike Valentines connection with such technology goes all the way back to his childhood interest in Amateur Radio.
Adventure Rider

Review: Radioddity QT80 10m Radio
It cleverly walks a line between being a CB (channelized) radio, and a channelized/VFO capable Amateur Radio.
The SWLing Post

Amateur Radio on the International Space Station contact opportunity
Message to US educators: Call for proposals – new proposal window is October 7th, 2024 – November 17th, 2024
ARISS

Video

Receiving microwave signals from deep-space
David Prutchi explores how deep space exploration creates new and exciting opportunities in Ham Radio.
Supercon

1 Watt 2160 km QSO
Thanks to Peter OZ8CTH for this nice QSO.
Ali TA3IIF

Helene Aftermath: Aid, community resilience, and egress/ingress
We are still using a simplex frequency (147.55 MHz) for communications in the neighborhood and another (146.52 MHz) for the Swannanoa area on the VHF calling frequency.
QRPer

Ham Radio and the aftermath of Helene
Traditional media reports are beginning to pop up, highlighting the ability for Amateur Radio to help during natural disasters.
Amateur Radio Daily

Space Station Slow Scan TV transmissions
ARISS is planning a Slow Scan Television (SSTV) experiment from the International Space Station, scheduled to start on Tuesday, October 8, and running until Monday, October 14.
AMSAT UK

Tiny4FSK – The lightweight Horus Binary Tracker
Tiny4FSK aims to be an ultra-tiny high-altitude tracking system. It runs on 1 AA battery that lasts for 10-17 hours.
New England Weather Balloon Society

Strongest solar flare of Solar Cycle 25
Two CMEs are now heading for Earth following consecutive X-flares.
SpaceWeather.com

Tinkering with an antenna
As this was going to be an experimental antenna, I didn’t care too much how kludgey the thing looked.
KB6NU

Making your first QSOs on 10 GHz using the Icom IC-905
KI8R, with help from the active community of microwave operators and assistance provided by rain scatter propagation, makes two QSOs on 10 GHz.
OnAllBands

Python code to generate WSPR audio tones
This works both on my Mac and on a Raspberry Pi with no modification.
marxys musing on technology

How to take backpack portable radio to the next level
Field trials – including a couple of successful POTA activations – with this arrangement verified that the backpack has sufficient stability to support a 20m quarter wave whip.
Ham Radio Outside the Box

Voice of America will get a new headquarters
For 70 years it has been based at its current location, almost in the shadow of the U.S. Capitol.
Radio World

The 1924 Martian Signal: A cosmic curiosity
The U.S. Navy imposed a nationwide radio silence for five minutes each hour to allow observatories to listen for signals from Mars.
Hackaday

Video

AWA AM QSO Party
Operating a rare Collins KW1 at the Antique Wireless Association during their annual AM QSO Party.
N2MAK

FT8 Superfox cracked
DXpedition security key has been cracked.
ICQ Podcast

Hurricane Watch Net: How Ham Radio Operators track storms
A real-life example: Hurricane Beryl
Ham Radio Prep

SDR Television
A pure software solution for DVB-S2 H.264 / H.265 / AAC digital television receive and transmit.
SDR-Radio.com

SolderSmoke Daily News experimental podcast
Short form Ham Radio Podcast experiments with AI.
SolderSmoke Daily News

Handie-Talkie or Walkie-Talkie?
Motorola trademarked the name Handie-Talkie and used that nomenclature for many years.
K0NR

Is Tesla the “inventor of radio”? No Marconi was
Tesla cannot be considered the “inventor of radio” based on the 1943 Supreme Court ruling.
VE3IPS

NVIS for EMCOMM and survival communications
In practical terms, this distance is 50-500 miles.
Off Grid Ham

High School Radio Club collects time zones
Students were active on the D-Star network speaking to other operators from across the world.
RSGB

The history of microbroadcasting and how you can too
The untapped potential of Amateur Radio.
Lori Emerson

FCC escalates enforcement of pirate radio in Miami, NYC metro area
Commission carries out three fines, has three more proposed.
Radio World

Video

ARRL Director provides additional details around ARRL systems disruption
Editors note: ARRL released a statement describing portions of these details as not factual.
Southeastern DX Club

2024 Oregon SOTA Campout
Summits on the Air Activators and Chasers alike descended upon Howard Prairie Campground for the annual SOTA campout.
N7KOM

Icom investigating radios targeted in Lebanon blasts
Icom said it stopped making the walkie-talkie model in 2014 and has warned about fake versions for several years.
New York Times

portable antennas
This site aims to provide the Radio Amateur with easy to use tools enabling design and modelling of simple wire antennas for the HF bands.
portable antennas

WSPR transmitter construction and programming [PDF]
The WSPR transmitter was designed to be fully modular in construction.
AK3Y

Back up your computers
A critical part of National Preparedness Month.
Radio Artisan

A poor Ham’s panadapter
I like to think of them as Ham Radio fish finders – those neat little waterfall displays on many modern radios.
Ham Radio Outside the Box

Yaesu: Devoted to educating the Ham Radio community
im Duffy, K3LR, DX Engineering CEO, interviewing John Kruk, N9UPC, amateur division national sales manager of Yaesu USA.
OnAllBands

Antenna use by frequency band among Canadian Hams
Just shy of two-thirds (62%) report a single-element antenna.
K4FMH

Watch NASA’s solar sail reflect brightly in the night sky
It is one of the brightest things in the night sky.
Hackaday

Video

FCC-ARRL luncheon
A repeater group in Harrisburg PA had some special guests at their monthly club lunch – a half dozen representatives from the FCC, and a couple of ARRL officials stopped by to talk about Ham Radio and GMRS.
Ham Radio Now

Building a 2M Yagi from yard scrap
It ended up having a 1.6 SWR on the 2m Simplex frequency here in the U.S.
Modern Ham

Best mobile 2 Meter Ham Radio setup
Showcasing the ultimate trio of mobile 2-meter Ham Radio gear—the Radioddity DB50 2m/70cm 50-watt mobile radio, the M-916 MagMount, and the UV-711 2m/70cm whip antenna.
HamJazz

NASA to develop Lunar Time Standard
NASA will coordinate with U.S. government stakeholders, partners, and international standards organizations to establish a Coordinated Lunar Time (LTC).
NASA

Build the Frankentenna
The ultimate portable Ham Radio vertical antenna.
KB9VBR

Exploring international analog TV from leaky cable TV networks via the Airspy Server Network
Use SDR# and the Airspy Server Network to explore cable TV stations across the globe via cable TV signal interference.
RTL-SDR

How well does 17 meters work?
The higher the bands get the further they tend to reach more distant stations for me.
WK4DS

War of the Worlds in CW
War of the Worlds by H.G. Wells in Morse Code starting at 20 WPM.
AA7FO

Rise and stall of GPS
The average age of GPS satellites hits 13 years.
Payload

Improving the antennas on Heltec ESP32 v3 devices
A neat little quarter wave 868Mhz vertical antenna for this device.
M0AWS

HF in small spaces
Loop antennas like these are typically used only for receiving, but in a pinch they can be used to transmit as well.
Hackaday

The great shack QRM hunt
Now that I’ve taken up POTA and know how nice S0-1 background noise is, I wanted to have another go at the home situation.
Ian Renton

Video

Comparing desoldering tools
Is the Hakko FR301 desoldering tool worth 4X the ZD915 clone?
More Fun Making It

Making a hot dog talk with RF
We devised a test to see just how dangerous the RF energy can be on an AM tower.
Geerling Engineering

The highest sunspot number in 23 years
Fall 2001 was the last time sunspot counts were this high.
SpaceWeather.com

APRS Foundation accepting members
Becoming a member helps secure the future of APRS and assists with the foundation’s operating costs.
Amateur Radio

National Traffic System celebrates 75 years
As NTS 2.0 emerges to modernize the radiogram system, ARRL takes a look back at the origin of NTS which began in 1949.
ARRL

2024 Route 66 On The Air
This year marks the 25th year of this great radio event.
Citrus Belt Amateur Radio Club

SkywarnPlus
US government-issued alerts via AllstarLink, HAMVOIP, myGMRS, GMRS Live, and more.
SkywarnPlus

The September – October SARC Communicator
Projects and articles in this issue including a CW decoder, an HF amplifier, and a web server for HamClock using an inexpensive Raspberry Pi Zero.
SARC

A return to Ham Radio
My dad was thinking about whether I’d have any interest in his Ham Radio callsign when the time comes that he becomes a silent key.
AFØAJ

A brief history of barbed wire fence telephone networks
In need of a practical way to overcome social isolation; communicate emergencies, weather, and crop prices; and chafing under attempts to curtail free speech, ranchers and farmers began to take advantage of the growing ubiquity of both telephone sets and barbed wire fencing.
loriemerson

Amid wildfires and spotty cell service, Northstate residents turn to Ham Radios
Head even 20 minutes into the mountains from cities like Redding, Red Bluff, and Chico, and you’ll quickly lose cell phone service.
KRCR

Video

From zero to APRS in 10 minutes
Let’s build an APRS packet igate in under 10 minutes for just 99 dollars.
KM6LYW Radio

900MHz POTA – Leave no band behind
Operating on 902.300 MHz FM using an Alinco DJ-G29 HT and a DMS Wireless YA90014 Yagi antenna.
N2MAK