Dayton livestream from W5KUB
W5KUB broadcasts live from Hamvention all weekend long.
W5KUB.com

Dayton livestream from Icom
Icom will be streaming a number of D-STAR related forums as well as the Youth Forum
Icom

Elecraft announces new K3S [PDF]
“We’ve upgraded nearly every subsystem, improving performance and adding many new features.”
Elecraft

Amateur Radio Parity Act of 2015: 55 cosponsors — and climbing
This weekend’s Dayton Hamvention will offer an opportunity for ARRL to speak with individual radio amateurs and encourage them to seek their House member’s support.
ARRL

Browser-based SDR software: OpenWebRX
OpenWebRX is a multi-user SDR receiver software with a web interface.
OpenWebRX

Public service operating notes
ARROW, our amateur radio club here in Ann Arbor, was asked to help out with crowd control and parking. Here are some observations.
KB6NU

HF mobile, a different kind of radio shack
Mobile HF radio adds yet another dimension to Ham Radio. This is my second go at HF Mobile operation.
AmateurRadio.com

US Naval Academy CubeSat launch to include next APRS satellite
Sometime on or about May 20, the next US Naval Academy satellites and Brno University PSK31 transponders head into space from Cape Canaveral on an Atlas 5 launcher and into an approximately 50° orbit.
ARRL

How to

Reverse engineering a radio weather station
Decoding messages from a 433 MHz weather station using an RTL-SDR.
atx

Altoids tin solder fume extractor
Candy tin device helps keep your air clean and your lungs healthy.
Make:

US Amateurs: How to print out your license
Following these steps will allow you to print the official copy, not just the reference copy.
W2LJ

Video

Climbing a 1,500′ TV Tower
This is tower climber Kevin Schmidt making the climb to the very top of the now inactive KDLT TV analog broadcast antenna near Salem, SD.
Prairie Aerial

Transatlantic beacon reception on 144 MHz
The 144.436 MHz beacon D4C in the Cape Verde Islands HK76mv was received at PJ4VHF in Bonaire, Caribbean EM95qc on May 6 over a distance of 4686 km.
Southgate

Dayton Hamvention – Welcome to the Big Show
In amateur radio it doesn’t get any bigger, or any busier, than the Dayton Hamvention.
Icom

What will we see at Dayton 2015?
Hard to imagine that Dayton Hamvention 2015 is just a week away!
K9ZW

Dayton Hamvention livestream schedule May 13-17 2015
Wednesday May 13th 1300 UTC, we go live beginning with the drive from Memphis, Tennessee to Dayton, Ohio.
W5KUB.com

Extreme DX satellite contact between UK and Texas
On April 27, 2015 at 1901 GMT, Cuban radio amateur Hector Martinez W5CBF/CO6CBF achieved a 7537.8 km DX contact with UK amateur Peter Atkins G4DOL via FO-29, possibly a world record for the satellite.
AMSAT UK

ISS HamTV now transmitting on 2395 MHz
The Ham Video transmitter on board the Columbus module of the International Space Station was powered on and started transmitting in “Blank Transmission” (BT) mode.
AMSAT UK

Radio Buoys operating in the 160 meter Amateur band
It is an unfortunate situation that people who make a living from commercial fishing are caught in the middle of such a regulatory discrepancy.
KC4LMD

Arduino: Under the hood
Ever wonder how the Arduino IDE translates your code into instructions for the processor?
SparkFun

Android app tracks ADS-B signals
Track ADS-B signals from Android with a compatible SDR device.
Google Play

Digital Mode: SIM_PSK 31/63
Integrated Structured Message BPSK31
ON4NB

How to

How to build a 10 meter dipole
The Technician class has access to a part of the 10 meter amateur radio band. They can operate CW, digital and phone. Antennas for 10 meters are small and easy to build. A dipole antenna is one of the easiest antennas to build.
K7AGE

70cm Moxon Antenna
Contesting for beginners with a bent coat hanger.
G3XBM

A crude skew planar wheel antenna for GPS L1
The skew planar wheel antenna is a circularly polarised omnidirectional antenna, exactly what you want for satellite reception. It might not be as optimal as a QFH but it is definitely easier to construct even when you are in a pinch and only have gardening wire available.
/dev/thrash

Plans for 3D printing a QFH antenna
I designed this for 145mhz for ISS, and amateur radio. Great for satcom or APRS. It seems to work ok for NOAA APT sats as well.
Thingiverse

Video

Linrad waterfall and weak signals
Here Linrad is set up to produce waterfall graphs with high sensitivity for extremely weak signals. An RTL-SDR dongle is used to receive SK4MPI on 144.412 MHz.
sm5bsz

The hidden FM radio inside your pocket, and why you can’t use it
You may not know it but most of today’s smartphones have FM radios inside of them. But the FM chip is not activated on two-thirds of devices. That’s because mobile makers have the FM capability switched off.
NPR

Google Shakeup & Amateur Radio Clubs
We take a quick look at how these changes may impact amateur radio websites, and how without action, some of our amateur radio club websites may be even harder to find after this change by Google.
Essex Ham

Rookie Roundup roundup
The South Plainfield Amateur Radio Club ran a station for the ARRL Rookie Roundup.
W2LJ

ITTY: Internet Teletype
With today’s streaming audio over the Internet, George, W7TTY has come up with a scheme that allows him to broadcast teletype news over the Internet 24 hours per day, 7 days per week.
rtty.com

Tinkering with the Credit Card Crystal Radio
All that is required is connecting the high-impedance earphone, earth/ground and aerial/antenna to the board. Since all of these components can be connected with the supplied alligator clip cables, getting it on the air took all of 20 seconds.
SWLing Post

ISS 2395 MHz Digital Amateur TV blank transmission test
Please monitor the 2395 MHz at 2.0 Ms/s frequency and tell everyone as soon as you observe it.
AMSAT UK

How to

Turning a wireless router into an SDR
OpenWRT is a special custom Linux based firmware designed to create a fully functional Linux system on a internet router by replacing the stock firmware. Since OpenWRT is Linux based, it is possible to install the RTL-SDR software and run it on the router itself.
rtl-sdr.com

Video

Ham Radio Mobile in 1984
The late Don Wallace, W6AM, was interviewed in 1984 by Wayne Overbeck, N6NB, for the PBS series, “Radio Collector.”
California Historical Radio Society

D-STAR and the Icom RS-MS1A Android App
Our latest video about D-STAR features Don Turner (G4TKR) who is being interviewed by Bob McCreadie (G0FGX) of TX Films.
Icom

Arduino comparison guide
Thinking about getting started with Arduino but not sure where to start? Look no further! We’ve put together this handy guide to help you pick the right microcontroller for your project.
SparkFun Electronics

Homebrew D-STAR repeater
YouTube

Navy once wanted the world’s largest antenna in Wisconsin
In the 1960s, US Navy officials concocted an ambitious plan: they wanted to bury a gigantic grid of cables under roughly 41 percent of the state of Wisconsin in order to turn its bedrock into the world’s largest radio antenna.
Vox

FCC proposes to make past Ham address information private
The FCC is seeking comments on a Notice of Proposed Rule Making (NPRM) in WT Docket 15-81 that would restrict routine public inspection of an Amateur Radio licensee’s address history.
ARRL

Norway: first country to shut down FM analog radio
Within two years from now, the shutdown of national FM-networks begins in Norway.
The SWLing Post

ADIF to map Amateur Ham Radio contacts
This web application will read in a ham radio ADIF file and map contacts on a Google map.
K2DSL

Best Android Morse (CW) apps
Determined to finally master the skill, I’m using Android tutors to practice where and when I can.
M0SPN

Using WebSDRs worldwide for the ISS
Martin Ehrenfried G8JNJ describes how he uses WebSDRs to listen to ISS transmissions on 145.800 and 145.825 MHz. The SUWS SDR at Farnham can even receive the 143.625 MHz ISS comms channel.
AMSAT UK

How to

DIY open source reflow oven
Turn a household toaster oven into a soldering reflow oven for surface mount components.
Make:

Video

SSTV images from the International Space Station
I used my Arrow Antenna dual band J-Pole antenna, FT-817, Signalink USB interface and MMSSTV software.
K7AGE

Slow Scan TV in 1973
On a 1973 Israeli TV show, Aaron 4X1AG (ex 4Z4AG) demonstrated amateur radio Slow Scan Television (SSTV), which in the pre-PC era was displayed using a long persistence tube.
Southgate

Podcasts

Fo Time! The Other Ham Radio Podcast
Fo Time is a new podcast, aimed at the ‘younger’ Ham Operator and those interested in learning more about the hobby.
Fo Time!

QSO Today Podcast
I hope that you will sign up and join me for my weekly exploration of ham radio, my QSO, with these accomplished ham radio operators.
QSO Today Podcast

RadioShack’s blueprint for a rebirth, planned by a hedge fund
“It’s time for a new day,” Mr. Kim said, his voice tense yet steady. “We’re here today because we know this can work.”
New York Times

South African Hams get 40MHz access
Amateurs have been given ‘propagation studies’ permission to transmit between 40.675MHz and 40.685MHz.
VE7SL

Amateur Radio and Ingress
Those of us licensed have found that taking radios out on missions is a real boon, and if you ever hear simplex chat talking about “portals,” “hacking” and “deploying,” that’ll be some of the local Ingress players.
Essex Ham

TEN-TEC and Alpha purchased from RF Concepts
Less than a year after TEN-TEC and Alpha Amplifiers merged under the RF Concepts banner, the companies have changed hands.
ARRL

Infrared light offers alternative for wireless charging
Wi-Charge’s wireless charging technology claims to deliver up to 10 W of power over 10 meters.
Southgate

Spurious emissions and harmonics on Baofeng radios?
If this were correct, the Baofeng UV-5R would be the most horrible design ever. But wait, we did this already a long time ago, and the UV-5R wasn’t too bad at all.
PD0AC

A Worked All States and DX Net
Amateur Radio’s Late Night Net on 40 Meters
hhhnet.net

Time and frequency station back on the air
Time and frequency standard station WWV silenced its 25 MHz signal in 1977, but it returned to the air on an “experimental basis” a year ago, and it’s still up and running.
ARRL

How to

DRA818: A weekend VHF/UHF Radio audio transceiver project
On the board you will also find a microphone preamplifier.
Jurij Mikeln

Video

Antenna testing using WSPR
You can use a website to view a map of the station that you have heard and stations that have heard you.
K7AGE

Yaesu FT-757GX II in action
YouTube

Review

Review: Atom 40S Mobile HF Antenna
My previous experiences with HF mobile antennas have not been so great.
M0SPN

Javascript app runs RTL-SDR in your web browser
Radio Receiver is a Chrome application that uses a USB digital TV receiver to capture radio signals and does FM and AM demodulation in the browser.
Github

DSD software decodes D-STAR audio
DSD+ is a popular Windows software tool used for decoding digital speech such as P25 and D-STAR with the RTL-SDR.
RTL-SDR.com

FCC creates Citizens Broadband Radio at 3.5GHz
The FCC staffers handling the press briefing couldn’t resist the temptation to sprinkle their discussion with CB lingo, answering some questions with things like “10-4.”
eWeek

RadioShack to be co-branded with Sprint
The current plan calls for “co-branding” about 1,440 of the surviving stores with cellular phone provider Sprint Corp.
ARRL

ISS SSTV active on weekend of April 11
The Russian Federal Space Agency (Roscosmos) has announced another round of amateur radio Slow Scan Television (SSTV) activity from the International Space Station (ISS) will take place.
AMSAT UK

Raspberry Pi Slow Scan Television (SSTV) camera
In this project the Raspberry Pi with the PiCam is used as a wireless camera which can transmit images over long distances, usually hundreds of meters!
Make:

Guerrilla Radio
How some inmates hack, rewire, and retool their radios to create walkie-talkies.
Southgate

RTL-SDR filters
A good demonstration of a pair of filters built to mitigate the front-end overload experienced on an RTL-SDR receiver.
VE7SL

Yaesu FT-450D first impressions
First impressions are of an excellent receiver with good tone and clear audio from the internal speaker.
AmateurRadio.com

A complete HF station under $1,000
I designed a complete HF radio station that would cost less than $1,000. I wanted it to operate on all modes on as many bands as possible and have it be easy to use.
KC4LMD

Is the term “ham” older than we thought?
…a telegraph station was set up, and after that, a school for training telegraph operators. In the article, they refer to the school as a “ham factory.”
KB6NU

Video

1999 introduction to Ham Radio
This vintage video gives a flavor of what amateur radio was like in the closing years of the last century.
Southgate

Deploying a Cubesat from ISS
YouTube

New technology may double radio frequency data capacity
A team of Columbia Engineering researchers has invented a technology—full-duplex radio integrated circuits (ICs)—that can be implemented in nanoscale CMOS to enable simultaneous transmission and reception at the same frequency in a wireless radio.
Columbia University

SARnet: Florida’s state-wide repeater network
SARnet utilizes the FDOT microwave system as a backbone.
Frugal Florida Fun

The origin of SOS
The first recorded use of SOS was Jan. 23, 1909, when a liner called the Republic and an Italian liner called the Florida collided in the dense fog while passing Nantucket.
TimesDaily

Swapping gamma rods for better SWR
I chose a point 10cm further at the radiator as resonance will be rising.
PE4BAS

China v. Japan
Within a few years we will see the amateur radio market flooded with quality products made in China with low prices.
AmateurRadio.com

Software Defined Receivers (SDRs) for the visually impaired
I can say that all the software packages delivered with SDRs have issues and challenges when it comes to using them along with a screen reader.
The SWLing Post

SDR Round-up
New software defined radio (SDRs) products are popping up every few months these days so we thought we’d compile a big list of available SDRs as there are a few people who were bitten by the RTL-SDR bug and are now looking to upgrade.
RTL-SDR.com

A serious rift in the core Arduino team
One of the founding team members has gone off on his own, claiming rights to Arduino and starting a separate operation.
Make:

What is Skip Signal Fade?
With long distance propagation using ionospheric skip received signals will often fade in and out, being stronger and weaker over the course of a few seconds. What’s the cause of this irregular fading?
Ham Radio School

Did the eclipse affect propagation?
For the full 24 hours of 20th March, Derek G4SWY took world map screen shots of propagation as reported on WSPRnet.org every 4 minutes on 600, 160, 80 and 40 Meters.
Southgate

Video

Comparing whip lengths
The end result is you can’t beat more wire in the air.
M0GVZ

20 meter contact with the Canary Islands
I came to find that the location I contacted was around 4,300 miles away! That is INCREDIBLE! What a great hobby we are involved in.
N5WXW

New product

Bluetooth microphone for mobile
Compatible with different brands of mobile radio, like Icom, Yaesu, Motorola, Kenwood and more.
PD0AC