Teardown Tuesday: Baofeng Amateur Radio Transceiver
This display driver has been around since the late 80s. It interfaces microprocessors and Liquid Crystal Displays to show all manner of information in a variety of display sizes and a multitude of fonts.
All About Circuits

EO-88 status and new dashboard
More than 250 stations around the world have provided telemetry to the Nayif Data Warehouse and the FUNcube Team are extremely grateful to them for their invaluable support.
AMSAT UK

SvxLink: Linux repeater controller
Advanced repeater controller and EchoLink software for Linux including a GUI, Qtel – The Qt EchoLink client.
SvxLink

Off grid technology that may soon power your station
This is a very exciting time of changes for off grid and alternative energy. The cost of established systems is coming way down and many new discoveries are in the pipeline.
Off Grid Ham

Do switch-mode power supplies have a place in your shack?
a video of the Alinco DM-330FX shows just how much interference this switching power supply produces.
K5ACL

Band statistics for your grid square
This plots the average distance of WSPR reports for each band for each hour. To view the stats for your grid square, just change the locator on the end of the URL.
G7VRD

Solar-powered headset from recycled parts
Made almost completely of recycled components — reducing e-waste helps us all — only the 1 W flexible solar panel, voltage regulator, and the RN-52 Bluetooth module were purchased for this project.
Hack A Day

Amateur radio below 9kHz
Until a few years ago, the conventional wisdom was that you needed huge power and huge antennas to be copied “beyond the garden fence” at VLF and ULF.
AmateurRadio.com

DIY GPS module for Yaesu VX-8DR/VX-8DE handheld
GPS module for Yaesu VX-8DR/DE handheld transceivers with ublox NEO-6M chip and Arduino.
4X5DM

Are you treating your radios with care?
For either the advance or novice radio user, properly maintaining your communications equipment is essential. But what is the best way to do this?
Icom

Icom previews details of ID-4100E D-STAR VHF/UHF mobile radio
The Callsign routing terminal mode feature will allow each radio to be connected like an access point to the worldwide D-STAR repeater network through the internet.
Southgate

Radio News Magazine archive
Every issue from 1919 to 1959.
American Radio History

How-to: Icom External Keypad
A short press on the M1 to M4 button triggers a single voice keyer send, whereas hold the M1 to M4 button for a second enables auto repeating of sending voice keyer memories.
M1BXF

End Fed Antennas – Where’s the other half?
My favorite tends to be the classic ‘Sloper’ with the feed point located on the ground.
K5ACL

International Radio Network
The IRN (International Radio Network) is a VoIP/RoIP system using Teamspeak 3 (TS3) that allows licensed radio users to talk around the World.
International Radio Network

WSPR Antenna Comparison (Loop vs Dipole vs End Fed)
I did 24 hour WSPR runs using 5 watts of power with each antenna on successive days.
High on Solder

Universal Radio Hacker: investigate wireless protocols like a boss
The Universal Radio Hacker is software for investigating unknown wireless protocols.
Johannes Pohl

Open-air wireless charging
Disney Research has invented a new method of wirelessly charging mobile devices that could someday allow amusement park patrons to walk about freely while also getting their mobile devices charged.
Computer World

Video

Assembling the BITX-40
BITX-40, a QRP, SSB, 10 watt, kit.
KE0OG

Visualising shortwave band activity throughout the year
An animation of 24-hour shortwave spectrum plots from Twente WebSDR.
London Shortwave

Amateur Radio Satellite Nayif-1 launched
Just like FUNcube-1, this mode has the spacecraft sending high power telemetry when in sunlight and with the SSB/CW transponder active when in eclipse.
AMSAT UK

Hamcation Recap
Hamcation is a great Hamfest. It’s huge, spread out, and located in the one place where the weather is actually amazing – Orlando. It’s sunny, 75 degrees, and I’m pretty sure I’m sunburnt. I forgot that this kind of weather exists.
N0SSC

DMR Hotspot from SharkRF
The first thing I noticed when listening to some of the more active talk groups is that it seems like every person getting on the system said “I just got this Tytera MD-380 radio and you are my first DMR contact.”
K0NR

Decibel hell – the reign of antenna gain pain
Let’s step our way though the topic and see what we can learn from the pros.
Ham Radio . Magnum Experimentum

FreeDV 700C
The US test team report 700C contacts over 2500km at SNRs down to -2dB, in conditions where SSB cannot be heard.
Rowetel

W8SRC repeater IDs are distinctive… to say the least
If you want to get a little more professional with your repeater ID, just ask.
KB6NU

PicSafari: QRZ Ham Radio Image Library
QRZ has the world’s largest collection of amateur radio related images.
QRZ.com

Alaska’s HAARP facility once again open for business
The High Frequency Active Auroral Research Program (HAARP) in Gakona, Alaska, will soon undertake its first scientific research campaigns since the facility was taken over by the University of Alaska Fairbanks.
ARRL

Video

2 Meter tape measure beam antenna
The 2 Meter band tape measure beam antenna is a 3 element Yagi with about 7.2 db of forward gain.
KB9VBR

Setup Icom 7300 on iMac with RUMLogNG
This is for beginners and I’m a beginner on the Mac, but it proved to be simple.
K0PIR

ARRL seeks opinions concerning possible new entry level license
An Entry Level License Committee was established by the ARRL Board of Directors and appointed in September 2016.
ARRL

ISS SSTV active February 13th and 14th
The SSTV images will be transmitted as part of the MAI-75 Experiment on 145.800 MHz FM using the Kenwood TM-D710 transceiver located in the Russian ISS Service module.
AMSAT UK

The “Slick Six” 6 Meter Horizontal Dipole
This antenna is easy to adjust and can take any of the weather Texas can dish out.
KK5ID

‘Mysterious foghorn’ in Ham Radio bands
Observed on 7, 10 and 14 MHz, this is a Chinese OTH radar.
Southgate

Adding 160 meters to a Hustler 6BTV
I have never been able to transmit on the 160 meter band. As I hear it, it’s referenced as the “Gentleman’s Band.”
K5ACL

Baofeng for digital modes
When playing around with wireless mobile traffic lights, I also thought about options to transmit on the VHF and UHF bands.
Carriers Everywhere

Asus takes on Raspberry Pi
32-bit A17 CPU bolstered by fast Mali-T764 GPU, 2GB of RAM, and gigabit Ethernet.
Ars Technica

Easy homemade beginner ADS-B antennas
Easy to build, costs less than $1, no tools or equipment, takes maximum 15 minutes.
Radio for Everyone

ICOM IC-2820 fan mod
The replacement is a Pabst 0412 fan that comes with a 5,25” PC connector. I replaced it with a 1.5mm two pin JST ZH connector.
Notizbl0g.

Another outstanding year for Amateur Radio licensing
New Amateur Radio licenses issued were up by 1% over 2015.
ARRL

Video

Airborne TV DX Miami to St. Louis flight
Scanning the TV bands from 3, 000 feet – Miami to St. Louis and back with a Hauppauge WinTV-HVR-955Q dongle receiver and 3 inch stick antenna.
YouTube

Winter Field Day this weekend
If you are as serious about emergency communications as we are, we welcome you to join us for our yearly event.
WFDA

New FCC Chairman praises Parity Act
Newly designated FCC Chairman Ajit Pai praised the House action on H.R. 555 and other telecommunications-related legislation that cleared the chamber.
ARRL

HamRadio360: All about APRS
APRS, oh the questions you’ve raised!
HamRadio360

CIA documents about Ham Radio declassified
The CIA has recently released around 13 million pages of declassified documents. Among these documents is a set of reports on Ham Radio in the former Soviet Union.
Ham Radio Reviews

Making broadcast towers bird-friendly
In 1976 in Gun Lake, Mich., one tower killed more than 2,300 birds in one night.
NPR

Mt Herman Winter Activation
We returned to the Most Radio Active Mountain in Colorado, Mount Herman, for a combination VHF contest, SOTA activation and winter hike.
K0NR

Simple Wi-Fi Yagi
It’s easy to make a small Yagi for a wireless router even if it lacks an antenna connector. The photo shows how I added two parasitic elements to the sleeve dipole of my Netgear WGR614.
K6STI

Building an ADS-B station
Complete guide to building an ADS-B station: theory, components, maximizing reception performance.
Radio for Everyone

Headset shootout
Headset reviews are about a dime a dozen on the internet. They’re all subjective too. Everyone’s hearing is different. Especially mine!
K5ACL

Video

Winter Field Day: 5 basic winter survival tips
Winter Field Day is an opportunity to test your gear and personal effectiveness in cold weather conditions.
OH8STN

WSJT-X Raspberry Pi split mode
WSJT-X on a Raspberry Pi.
K0PIR

Parity Act bill reintroduced in US House of Representatives
The bill’s language is identical to that of the 2015 measure, H.R. 1301, which passed in the House late last summer but failed in the waning days of the US Senate.
ARRL

Standing desks for Ham shacks?
I’m quickly realizing standing is clearly helpful, because the same problems came up, even though my new chair was more ergonomic.
N0SSC

Ham Radio EMCOMM Go Kit
In order to simplify the cabling between the SignaLink and my laptop I decided to us a powered USB hub and to make the USB hub accessible on the back of the case.
High On Solder

Amateur Radio Club Survey 2017
We’ve just launched our 2017 amateur radio survey to get a snapshot of an aspect of the hobby.
Essex Ham

Ambulances to jam car radios in Sweden
Ambulances in Stockholm are testing a system that interrupts in-car audio systems to warn drivers that they need to get through.
BBC News

Walkie Talkie Duino
An open source wireless shield for Arduino that can send data and audio.
Tindie

Property owner wants to remove ham radio towers from atop hotel
The property’s new owner wants to take down the repeater site due to what it calls safety and security concerns.
News12

Callsign lookup when portable
QRZ is one of the more popular websites for looking up callsigns but the website is not formatted for use on mobile devices.
Ham Radio QRP

Codec 2 700C
My endeavor to produce a digital voice mode that competes with SSB continues.
Rowetel

Video

Internet over powerline can wipe out the HF band
These devices allow you to use your house power cables as a convenient ethernet connection for sharing the internet. However they are extremely noisy and can wipe out the entire HF band.
YouTube