A geosynchronous Ham Radio satellite
The satellite’s potential footprint could extend over the US from the Mid-Pacific to Africa.
AMSAT-UK

Is wind energy a good fit for you?
For the off grid Ham who wants to expand beyond solar, is wind energy the next likely step?
Off Grid Ham

Calling CQ: An email letter for amateur radio enthusiasts
The best editorial content promoting the hobby.
KE9V

Terminated inverted U antenna
I built the antenna using two 10m fishing poles spaced 5m apart.
Cross Country Wireless

Polite society on DMR
The wide area TG is kind of like meeting someone in the hallway or a noisy lobby. The “on-demand” TG’s are out the way places to go have a discussion without upsetting the hall monitors.
Digital Mobile Radio for Hams

ISS Columbus Ham Radio inoperative
The Ericsson VHF handheld transceiver in the ISS Columbus module which is used for amateur radio voice contacts on 144.800 MHz and the packet radio digipeater on 145.825 MHz is unusable.
AMSAT-UK

CW Decoder Logic
CW decoder app for Windows.
LY3H

/P fun in the sun
In total, I made 8 QSOs (all CW, at 10-watts) 6 on 40m and 2 on 20m in what were reasonable conditions.
M0PZT

A simple approach to VHF contesting
The tow bar mount is made from a few off cuts of 47mm x 100mm (or 2″ by 4″ if you prefer) and a piece of rough sawn timber.
G7KSE

Hams in India monitoring “Highly Suspicious” VHF communications
The signals were being heard in the dead of night, with participants reported to be in motion and speaking in some sort of code.
ARRL

Video

1 foot mini magnetic loop transmitting antenna
I decided to make a mini magnetic loop and see if I could be heard down on HF with a tiny antenna.
YouTube

SOTA Signals from Signal Butte
Steve/K7PX and Steve/wGOAT activate Signal Butte for Summits on the Air.
WG0AT

Current rules holding Hams back from state-of-the-art technology
ARRL told the FCC in its comments that the current HF symbol rate “speed limit” reflects 1980s technology and has no place in an experimental radio service.
ARRL

Outernet broadcasting APRS packets globally
Outernet is a low data rate worldwide satellite downlink carried on three geostationary Inmarsat L-band sateliltes to provide web content (downlink files only) to remote areas anywhere in the world.
aprs.org

Building a Ham Radio power supply
After spending $820 for the radio, I wasn’t in the mood (or the financial state) to drop another $100 to $150 on an Alinco Power Supply.
Soliloquy Blog

Building your own GSM basestation
Having your own GSM basestation allows you to create your own private and free GSM network, or for more malicious illegal users it can allow you to create a system for intercepting peoples calls and data.
RTL-SDR.com

Open source, cross-band repeater board for high altitude ballooning
Project Echoloon is an Amateur Radio cross-band repeater device that can be lifted by a few helium or hydrogen-filled party balloons.
N0SSC

Top 10 Amateur Radio uses for the Raspberry Pi
The Raspberry Pi has proved to be a phenomenal hit with hobbyists around the world.
Adventures in Ham Radio

How the phonetic alphabet emerged
For a time the Able, Baker alphabet, derived from WWII when the US air force entered the war, hung around in aviation for years.
Southgate

Rehab for the KØNR Repeater
The SCOM 7K repeater controller has been in service for decades, handling multiple receivers and transmitters.
K0NR

What is Near Vertical Incident Skywave?
This series focuses on short-haul communication during a disaster in the Amateur Radio Service.
N4AE

Video

MMDVM home brew repeater demonstration
Here is a quick video clip showing the flexibility and ease of use when switching between the 3 digital modes DMR/DSTAR/FUSION.
N2LEM

Sean McQuillan: Engineer, farmer, pirate radio pioneer
Sean McQuillan single-handedly set up one of the first land-based pirate radio stations in the country. Sean recounts tales of many events in his life with humour, eloquence and humility.
Vimeo

ARES responds to Hurricane Matthew
ARES volunteers in Florida, Georgia, and the Carolinas are helping or gearing up to support communication during the response to Hurricane Matthew.
ARRL

Frequencies in use in conjunction with Hurricane Matthew response
Please avoid interfering with these frequencies, and do not check into any emergency nets unless you genuinely have something of importance to contribute.
ARRL

How to use Amazon Echo in Ham Radio
Putting the voice activated computers on line, we can send voice commands followed by DTMF and access the Internet directly.
Southgate

Circular SWR ruler
This tool can calculate gain, loss, SWR and return loss in a second with enough precision for most amateur works.
TK5EP

Catching CubeSat chatter? There’s an app for that!
Estévez’s gr-satellites project provides a collection of applications to decode satellite telemetry.
The Register

What I pack for the Chicago Marathon
For the fourth year, I will be part of the Medical Communication Team at the Chicago Marathon this weekend.
N4AE

An end fed halfwave antenna for portable ops
My main reason for not putting much effort into portable operation is that when I go out into nature, I want to enjoy my surroundings and not be distracted by radios.
AA7EE

Inverter generators: What you need to know
Inverter generators convert the high frequency, three phase AC into DC current via a solid state rectifier, and from there the electricity goes into a conventional 60 Hz.
Off Grid Ham

American Morse Code
American Morse Code was first used on the Baltimore-Washington telegraph line, a telegraph line constructed between Baltimore, Maryland, and the old Supreme Court chamber in the Capitol building in Washington, D.C.
Wikipedia

Video

12V battery performance comparison
Sealed Lead Acid vs A123 and Bioenno LiFePO4
KF7IJZ

Log file azimuthal maps
This tool reads your ham radio logs and generates an equidistant azimuthal world map plot of your contacts using Scalable Vector Graphics.
N1YWB

The amazing BOG
A ‘BOG’ or ‘Beverage On Ground’ seems to come in many varieties and is usually, out of necessity, shorter than a ‘real’ beverage.
AmateurRadio.com

CHIRP Radio Programming webinar
Attendees will learn: What CHIRP is, which radios are supported, how to get CHIRP, and how to troubleshoot CHIRP.
ARRL

Sotabeams Laserbeam DSP Filter
It is cheap, simple, razor sharp and a really useful add on.
G7KSE

Ham Radio on a boat
Ham shack and lab on a 50-foot Delta power boat.
microship.com

QRP is unfair to chasers
If you understand propagation, then a QRP signal will be loud to someone, somewhere.
W2LJ

Smoky Mountains NPOTA activation recap
I took my field kit which included the Elecraft KX2, QRP Ranger battery pack (not pictured), and EFT Trail-Friendly antenna.
The SWLing Post

Homebrew 20kWh powerwall
He’s working on adding a huge number of 18650 Lithium cells to his home’s power grid and posting about his adventures along the way.
Hack A Day

Video

Android DMR HT
RFinder Android Radio DMR QSO International Worldwide.
YouTube

Slow Scan Digital Video (SSDV)
First end-to-end test of a 115.2kbaud FSK modem, transmitting slow-scan digital video.
YouTube

High-speed imagery downlink making use of SSDV
In our payload, we use SSDV to compress images captured by a PiCam, then transmit them via 70cm FSK at 115kbaud.
SSDV

ARRL 2016 Simulated Emergency Test is October 1-2
Every local ARES team and/or ARRL Section will come up with their own scenarios and work with served agencies and partner organizations during the SET.
ARRL

End-Fed antenna revisited
I really like the simplicity of this antenna for many aspects: fast to deploy, works on many bands, no antenna to tune…
VA2SS

How to undertake a SOTA Activation – Step by step guide
It covers the set-up, spotting, operating procedure and tips and tricks I’ve picked up over the last few years.
Adventures in Ham Radio

Reflector Life
In a nutshell, IRLP links repeaters and individual nodes, like mine, with others via the Internet.
KE9V

A single lever paddle
The only paddle I have is a Bencher, which is a bit too heavy and cumbersome to carry in my backpack for a portable set-up.
AA7EE

NPOTA: Photos from weekend “two-fer” activation
My family visits national parks regularly, so it’s easy for me to pack a small radio, do a quick NPOTA activation all while incorporating non-radio activities that the family loves.
The SWLing Post

VDSL interference: A Ham operator’s nightmare
Unfortenately still sometimes we lost the complete DSL connection and in that case we had to wait for 5 minutes to get TV, internet and phone back online.
PE4BAS

Radio club coordinates energency response during cycling event
Huntsville Amateur Radio Club volunteers were instrumental in coordinating the communications amongst event organizers and volunteers, emergency personnel.
WHNT

AT&T’s New “AirGig” Not Your Father’s BPL
ARRL’s earlier anti-BPL campaign, and market forces, eventually led to the demise of the prior BPL initiative.
ARRL

AT&T Labs’ Project AirGig nears first field trials
AirGig could one day deliver low-cost, multi-gigabit wireless internet speeds using power lines.
AT&T

Amateur Radio Parity Act passes in the US House
“This is huge step in our effort to enact legislation that will allow radio amateurs who live in deed-restricted communities the ability to construct an effective outdoor antenna.”
ARRL

First VK-VE 630m contact
This is the first-ever QSO between North America and Australia on the relatively new 630m MF band.
VE7SL

Radio-Dakar QSL card sells for $1,195 on eBay
This QSL card started out life on eBay at $9.50 with free shipping.
The SWLing Post

Ham Nation: Hams Gone YL’ed
It’s an all YL cast tonight! We interview VA1YL, Amanda explains emergency situations, and a space weather update from Dr. T
TWiT

Get the right signal tone
One of the most common set of signaling tones is called the Dual Tone Multi-Frequency (DTMF) tone system, often known as Touch-Tones. This system was invented for use in telephone systems by AT&T in 1963.
Ham Radio School

Portable logging for iPad & iPhone
The upgrade to the water/dust proof case was just the ticket, despite it adding some bulk it really protects the device well.
M0JCQ’s Ham Blog

Review: BTech UV-50X3 tri-band mobile
Four years after its initial design, the VGC 6600PRO has evolved into the BTech UV-50X3, a full featured Tri-Band mobile that delivers a full 50W on VHF and UHF.
tri-band-review

Video

75 meter yagi installation
Installation of a 75 meter yagi antenna at W0AIH contest station.
YouTube

A teardown of the Kenwood TH-D74
YouTube

Air Force to ‘bomb the sky’ to improve radio reception
CubeSats could carry massive amounts of ionized gas to the ionosphere to create radio-reflecting plasma.
Prepared Ham

Smaller solar cycles ahead?
Data suggest that Cycle 24, the current solar cycle, will bottom out in 2020.
ARRL

Michigan State Parks on the Air
It looks like the program will get started next year.
KB6NU

Emergency preparedness: How will you communicate?
September is recognized as National Preparedness Month.
Icom America

The woman behind the KM5R repeater
Once upon a time there lived a home-schooled fairy princess named, Melissa, or as she later became known, KM5R.
Weekly North Texas net for YLs

YL International Single Sideband System
The ISSB System operates on 14.332 MHz, 365 days of the year.
YL System

September VHF Contest this weekend
The goal is to contact as many different stations in as many 2 × 1 grid squares as possible on frequencies above 50 MHz.
ARRL

Batteries for portable Amateur Radio use
I’ve used everything from car batteries, Sealed Lead Acid Batteries (SLAB), standard AA’s, Lithium Polymer (LiPo) and Lithium Iron Phosphate Batteries (LiFePo).
M0JCQ’s Ham Blog

Can you ID this mystery digital signal?
I noted beeps at Hz repetition rate, does not appear to be data, it beeps for about a minute then there is a short data burst then beeping again for a minute or two.
The SWLing Post

Video

VHF Transmitter key-up analysis
Based on what I learned about this radio, I won’t be operating it at the high power level due to the frequency drift.
W2AEW

Random wire portable antenna back yard test
I decided to try a random wire in the back yard with QRP power and portable set up for some fun and to see how it would work for me.
RadioHamGuy

Jogging while listening to the Space Station
This is my reception of Astronaut Jeff Williams talking with summer camp students at the Kopernik Observatory and Science Center.
Space Comms

Lightning strikes on the Maestro/Flex 6300
Perhaps it’s time to disconnect the antennas and call it a day.
The Radio Hobbyist