Multimode Raspberry Pi transmitter software
PiTX permits transmission of HF signals directly through a pin of Raspberry Pi GPIO.
Southgate

Hams talk digital
Towards the end when the two stations switch to regular SSB, the difference is dramatic.
Hack A Day

What happened to WWBS?
Down in Macon, Georgia, USA there was once a private shortwave radio station with the callsign WWBS.
Mount Evelyn DX Report

Morse Code is only mostly dead
When I completed my 100th CW QSO as a new operator I decided to gather some statistics on age of Morse Code operators with whom I had QSOs.
N4PBQ

Diagrams for every wire antenna ever
Wire antennas for Ham Radio.
N4LCD

10 things you never knew about military radio technology
In honor of Veterans’ Day, we look back at military radio technology.
goTenna

How to

The “Cylinder” center connector for dipole antenna
This is another alternative home-brew center connector for a dipole.
K4ICY

Raspberry Pi ISS iGate Project
This project is an APRS iGate for ARISS program’s digipeater aboard the International Space Station.
N5DUX

Video

Windows Pi
George demonstrates Windows 10 on the Raspberry Pi.
Amateur Logic TV

Building an 80m horizontal loop
It looks easy but this video is made in a 4 hour timespan.
PE4BAS

The very particular world of amateur radio
In the last three years, the number of amateur radio licences has risen by over 8,000 – with 80,000 currently issued in the UK.
BBC News

How a group of neighbors created their own Internet service
Powered by radios in trees, homegrown network serves 50 houses on Orcas Island.
Ars Technica

Feds have plan in case we are hit with catastrophic solar flares
The White House bases contingency plan on the Carrington Event.
Digital Journal

DSTAR Parachute Mobile QSOs prove popular in Japan
Mark Meltzer, age 66, had an optimistic longshot QSO sked with hams in Japan hoping to work them on 28.425 KHz with a 5 watt SSB signal.
Southgate

QSO with W0RW from Knox Mountain
Every day is a surprise.
amateurradio.com

FCC, Justice Department investigate covert Chinese radio network
The Federal Communications Commission and the Justice Department are investigating a California firm whose U.S. radio broadcasts are backed by a subsidiary of the Chinese government.
Reuters

Secret radio stations by the numbers
There are actually several types of number stations, but the prototypical one is simply someone on the air reading lists of numbers.
Hack a Day

How good is the FT817’s MH-31 stock standard microphone?
Others reported improved results by substituting an electret insert. It seemed too simple not to try.
VK3YE

How to

SDR reception of Digital Amateur TV from the ISS
How to receive DVB-S digital video transmissions from the International Space Station with a bit of hardware and a lot of software.
pabr.org

Video

W1AW/6 Pacificon Special Event Station – All on one antenna
This video explains how they ran multiple stations using a single antenna. Watch and see how Rick engineered the radio system.
K7AGE

Why You Need Circulators in Repeaters
A discussion of circulators and a teardown of a 915 MHz circulator.
The Life of Kenneth

2015 Field Day results now available
The number of logs received appears to be an all-time ARRL Field Day record. This year saw 35,369 participants, down slightly from 2014.
ARRL

UK to auction former Amateur Radio spectrum
Spectrum at 2.3 and 3.4 GHz that once was allocated to Amateur Radio is going on the auction block in the UK.
ARRL

Where are the new Technicians coming from?
Invariably, we wonder “where are these new hams coming from?” and instituted a survey to try to find out.
K0NR

Newly published interview with founder of 73, Byte Magazine
My interview with computer magazine publishing pioneer Wayne Green.
K6KJN

Modems for VHF digital voice
It would be nice to make some re-use of existing FM VHF radios. So is it possible to come up with a waveform that can pass through legacy FM radios, but also be optimally demodulated with a SDR?
ROWETEL

Whitepaper on soldering aluminum
One of his most visible accomplishments can be easily seen if you live in the SF bay area; he developed the welding process for the steel/aluminum third rail on the BART system.
Life of Kenneth

How to build a low-tech internet
The low-tech alternatives result in much cheaper and very energy efficient networks that combine well with renewable power.
Low Tech Magazine

How to

A tutorial for launching your first balloon
There are a lot of reasons to put together a weather balloon launch. Its a great project for a STEM class, it requires planning, electronics and programming, and teamwork.
Tracksoar

Video

Ham Radio from a moving train
Tim Carter, W3ATB, and Jim Cluett, W1PID pair up to give a demonstration of DX Ham Radio from a moving train.
W3ATB

Base jumping from Radio Arcala
One midsummer weekend three lucky men received permission to use the antenna tower for something completely different.
Vimeo

And finally…

ARRL CEO position available
The League is accepting applications for the position of ARRL Chief Executive Officer. The deadline to submit an application is November 15.
ARRL

The Yellow Box of Power
The Yellow Box of Power is a very yellow Pelican box (size 1550) loaded up with 36 amp-hours of 12-volt battery capacity that can be charged by way of normal 120V household power or through one or more solar panels.
GAD.net

Use of 146.52 MHz FM simplex frequency cleared for ARRL contests
The committee felt that permitting the use of 146.52 MHz would allow new/curious contesters possessing only FM-mode radios to stumble upon more contacts.
ARRL

How do lacquered boards stand up over time?
A query I hear from time to time about using copper-plated boards for construction is what they look like after a few months or years.
AA7EE

Unscientific spectral analysis of two Baofeng radios
This transmitter is all over the place. Tons of spurious emissions, some as little as 30dB down from the fundamental. This transmitter is definitely misbehaving or not properly filtered.
KD8TWG

Digital Voice Balkanization
Wouldn’t it be cool if we had one digital communications format for the VHF/UHF amateur bands?
AmateurRadio.com

All your modem are belong to us
Closed source and proprietary chipsets are nasty, a glaring problem in a cool geeky field that is otherwise open source. It’s got to be fixed.
ROWETEL

Spoken command injection on Siri, Google
It is possible to trigger Siri remotely by emitting an AM-modulated signal containing voice commands at 103 MHz.
University of Pennsylvania

Try FSQ for fast, simple QSOs
FSQ is a Fast Simple QSO mode designed specifically for HF. It works well under NVIS and sunrise/sunset conditions on the lower bands, and also works well for short skip and grey-line on higher bands.
KB6NU

Scripting Fldigi on OS X
With excellent support for executing external scripts, it is easy to set up Fldigi to log all recorded QSOs directly to one of the three major OS X logbook programs.
Mac Ham Radio

Good SWR and antenna resonance
Standing Wave Ratio (SWR) is an important concept that describes how good of a match exists between a transceiver and antenna system.
Ham Radio School

Video

VHF propagation timelapse
This is a timelapse of NG0E’s APRS VHF Propagation monitor.
YouTube

Fox 1A satellite beacon
“Hi, this is amateur radio satellite Fox 1.”
YouTube

DV4mini: All-in-one USB hotspot for D-STAR, DMR, Fusion
USB stick containing 70 cm data transceiver. Works with D-Star, DMR, Fusion, APCO25 and other digital modes which are based on GMSK, 2FSK or 4FSK.
YouTube

ARRL releases excellent Parity Act explanation video
ARRL President Kay Craigie, N3KN, said the video will be made available on Capitol Hill to make sure that Members of Congress have correct information, instead of misrepresentations.
ARRL

Kickstarter: Tiniest APRS tracking device
The Tracksoar APRS tracker is the smallest, lightest, ready to fly open source APRS tracker.
Kickstarter

Criticisms around ARES October SET
These groups rarely (if ever) properly train on the challenges of trying to use NVIS nets around the clock. Many don’t realize that 60 meters is not optional and they will likely need 160 meters in the mix too.
The Kentucky Packet Network

Field Day logging: A study in pain (PDF)
A local area network based logging system shared between stations, stored in a single database.
KK4SXX

AMSAT live OSCAR satellite status page
This page shows the most up-to-date status of all satellites reported in real time.
AMSAT

How a drug cartel took over Mexico with walkie-talkies
Inside the communications infrastructure of the ultra-violent syndicate.
Popular Science

OS X contest software overview 2015
Whether you are a serious contester, a casual contester, or someone who is just getting started, there is a contest logger that can meet your specific needs.
Mac Ham Radio

Curtain antenna for shortwave radio broadcasting
The curtain antenna is a dipole array, consisting of rows and columns of dipoles.
Broadcast Belgium

D Layer absorption
We learn in Technician Class and General Class studies that the ionosphere’s D layer is created in the daytime by ionizing solar rays and fades away completely at night, and we learn that the D layer absorbs HF frequencies below the 20-meter band.
Ham Radio School

How to

Dealing with urban radio interference on shortwave
The levels of urban radio frequency interference, or RFI, have increased dramatically in the last two decades and the proliferation of poorly engineered electronic gadgets is largely to blame.
The SWLing Post

Video

Amateur Radio: A 21st century hobby
Whether you enjoy writing software, getting hands-on with practical equipment, developing new technology or simply want to use what’s already there to communicate with others across the world, you’ll find all of this – and more – within amateur radio.
RSGB

Basic amplifiers: 1963 U.S. Army training film
An electronic amplifier is used for increasing the power of a signal.
U.S. Army

Alternative sites for Hamvention proposed
Fears about Hamvention leaving town because of Hara Arena’s economic struggles has local officials scrambling to propose alternative sites.
Dayton Daily News

New FM repeater satellite launches (Fox-1A)
Fox-1A is a 1-Unit CubeSat carrying an FM repeater that will allow simple ground stations using an HT and an “Arrow” type antenna to make contacts.
AMSAT UK

Radio Amateurs on NASA TV
Radio amateurs Jerry Buxton, N0JY and Courtney Duncan, N5BF were on the panel at a NASA prelaunch briefing on Wednesday, October 7.
AMSAT UK

Heathkit appears to be back in business
This radio has a real air variable tuning capacitor. We have them custom-manufactured for us to our specifications, including its ball-bearing planetary reduction drive for smooth tuning.
Heathkit

Disney Emergency Amateur Radio Service
If you’re visiting the Walt Disney World resort, we encourage you to make use of our repeaters.
WD4WDW

Emergency preparedness and cross band repeat
One of the best forms of communications that hams have at their disposal when forced to operate from challenging locations in regards to accessing distant repeaters is “Cross Band Repeat.”
Jerry’s Journal

Operators in Rhode Island dialed into enemy conversations worldwide
The FCC turned loose a 40-member spy team of men and women to listen in on the world.
Providence Journal

Build your own satellite ground station
If you have access to a 3D printer you can now put together your own ground station for between $300 and $400.
Make:

Making contacts via Ham Radio enabled satellites
It’s worth recording your session so that you can make sure you have copied your QSOs correctly.
Soliloquy Blog

Video

Arduino based Morse Code tutor
I’ve recreated a Datong D70 Morse code tutor using an Arduino.
ColdestMoon

Introduction to radio repeaters
What a repeater does, and what parameters you need to be able to use one.
YouTube

2m SSB Tropo lift into Cornwall UK
M6GOF

Chinese Ham sats now active
Six satellites (XW-2A to XW-2F) carry 435/145 MHz U/V linear transponders for SSB/CW communications.
AMSAT UK

Steal this Ham Radio (technology)
If you think hams just use Morse code and voice communications, you are thinking of your grandfather’s ham radio.
Hack A Day

APRS in your pocket
For a lightweight portable station, all you need is a handheld transceiver, a tiny packet TNC, and an Android smartphone.
VE6AB

Reverse engineer wireless traffic lights with SDR
It was very easy to see that this is AFSK1200 alternating between 1200Hz and 2400Hz.
Carriers Everywhere

All about the Amateur Radio Parity Act of 2015
ARRL dedicates single webpage to Amateur Radio Parity Act of 2015 concept and status.
ARRL

Is college football a ham radio killer?
I’m attributing the big dip in sales on Saturday, September 19, to college football.
KB6NU

High altitude balloon travels 6,800km
Our first superpressure HAB to use solar panels for recharging the battery.
Bristol SEDS

Working DL8DJM aeronautical mobile
Aeronautical Mobile contacts are pretty rare and the team in the gazebo fell silent as Johannes DL8DJM/AM told us that he was flying from Edinburgh to South Italy, about 100km from Amsterdam at 43,000ft.
Essex Ham

Fox telemetry decoder software available
Fox-1A is scheduled to be launched on October 8, 2015.
AMSAT UK

Video

Add APRS maps and an IGate to the Yaesu FTM-400DR
This video shows how to add APRS maps to the FTM-400DR using a cheap Windows tablet and the data cable that is included with the radio.
YouTube

New York Air Traffic Control on HF
New York air traffic control on the shortwave bands, which they use for longer distance communications than the VHF comms can handle.
The Radio Hobbyist

Theory of Simplex and Phantom Circuits: Balanced Conditions
US Army training film TF11-2062 (1944)
YouTube