Author Archive
Amateur Radio Weekly – Issue 234

Artist to transmit art via SSTV and HAARP
Amanda Dawn Christie will use the world’s most capable high-power, high-frequency transmitter to send art around the world and into outer space.
Concordia University
2 meter square loop antenna
Get on 2m SSB in style with this neat and sturdy plumber’s delight RF projector.
Ham Universe
Part 3 of Ham Radio and condo life
If you have an attic, the best antenna could be the Alpha Delta DX-EE fan dipole.
VE3WDM
Photos from the 2019 Charlotte Hamfest
I was very impressed with the turnout–indeed, it was one of the busiest regional hamfests I’ve attended in ages.
The SWLing Post
Radio Hams help isolated settler
IARU Region 2 reports on a short story with a happy ending.
Southgate
FT8 growing as DX mode in an era of waning propagation
The number of Club Log users uploading at least one FT8 contact to the site grew from 8,000 in 2017 to 14,200 in 2018.
ARRL
This SDR uses a tube
The tube acts as both an oscillator and mixer, so the receiver is a type of direct conversion receiver.
Hack A Day
2019 State of the Hobby Survey
This benchmark can help us determine what is working and what is not in the ham radio community. This can involve participation, recruitment, mentoring and licensing. It can also help identify new and emerging trends in amateur radio. Please take a few minutes to complete the survey and share with others in the hobby.
N8RMA
Video
Receiving Cosmonaut Alexey Ovchinin on Soyuz MS-12
Using an SDR to listen to Soyuz communications.
YouTube
The first geostationary satellite for Ham Radio
Here we take a look at the Ham Radio transponders of the new Es’Hail 2 Satellite.
YouTube
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Amateur Radio Weekly – Issue 233

FCC looking for comments on enhanced Tech priveleges
This includes phone privileges at 3.900 to 4.000 MHz, 7.225 to 7.300 MHz, and 21.350 to 21.450 MHz and RTTY and digital privileges in current Technician allocations on 80, 40, 15, and 10 meters.
KB6NU
Keyless chaos as drivers mysteriously locked out of cars
Authorities are trying to locate the disruptive signal.
Southgate
Of end-feds and feed-lines
Simulations suggest what feedline lengths to avoid and offer a confirmation why portable users with short feeds never seem to have trouble.
hamradio.me
Top ten FT8 advantages for slackers
You have time to visit the restroom without missing any contacts.
K0NR
All about RF coaxial cable connectors
Many standard connector formats, such as the D-type connectors and many other multiway connectors consist of a series of pins with connections in parallel to each other. RF connectors are typically very different and have some rather different characteristics.
electronics-notes.com
3D printed telegraph
To actually put a key to use, you need a telegraph sounder on the receiving end to “play” the messages.
Hack A Day
Flooded batteries for off grid radio, revisited
Regular maintenance on flooded batteries should be done at least twice a year, or quarterly if your batteries are cycled often.
Off Grid Ham
Pistol crossbow antenna launcher
Generally, the higher you can get an antenna, the better off you will be.
Soliloquy Blog
Radio fun: Monitoring ISS answering student questions
The pass was high and mostly to my open south which meant it was one of the longest ARISS contacts I’m monitored.
The SWLing Post
2019 State of the Hobby Survey
This benchmark can help us determine what is working and what is not in the ham radio community. This can involve participation, recruitment, mentoring and licensing. It can also help identify new and emerging trends in amateur radio. Please take a few minutes to complete the survey and share with others in the hobby.
N8RMA
Video
Running two instances of WSJT-X
A demonstration of two instances of WSJT-X, two radios, and two antennas. One computer.
K0PIR
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Amateur Radio Weekly – Issue 232

2019 State of the Hobby Survey
This is the third annual State of the Hobby survey. 2018 came booming in with nearly 3,000 responses.
N8RMA
So Now What?
ARRL is launching a new bi-weekly podcast geared to those who are just getting started on their Amateur Radio adventure.
ARRL
Light up 2 Meters Night – an FM Simplex event
Taking place on March, 24, 2019, from 6-8pm local time.
W5KV
The $50 Ham: Getting Your Ticket Punched
Today we start a new series dedicated to amateur radio for cheapskates.
Hack A Day
New DMR network: QRM_Network
This is a good place to experiment with new hardware and software.
KC3OL
My return to Ham Radio
This story is about my observations after returning to the hobby after a long absence. How has amateur radio changed?
VE7SAR
Ham Radio EMCOMM Go Kit
When building a go kit you should think about what you need the kit to do and how you will be using it.
High On Solder
Best handheld Radio for preparedness?
The Yaesu VX-6R and VX-7R are excellent handheld radios for those interested in communications preparedness.
OH8STN
HRPT stations worldwide
These are Stations from Radio Amateurs that Receive HRPT images in L-Band from Polar Orbiting Weather Satellites.
Tynet.eu
Video
Testing the Medium Wave capabilities of a Kenwood TH-D74A
Medium Wave reception test of an unlikely receiver.
YouTube
Making a paper cup microphone for less than $10
You can make a microphone out of a paper cup, some magnets, and some wire.
LeoMakes
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Amateur Radio Weekly – Issue 231
Reduce HF noise with Faraday Cage for switching power supplies
The results are very promising with the shielded supply eliminating the noise almost entirely.
rtl-sdr.com
“RF Seismograph” may be real seismograph
Alex Schwarz, VE7DXW, in British Columbia, Canada, is exploring the possibility that “RF signatures” detected by the RF Seismograph propagation tool could also be indicating earthquakes, and may even be able to predict them shortly before they occur.
ARRL
FreeDV QSO Party 2019
April 27th 0300z to April 28th 0300z 2019. This is a great chance to try out FreeDV and work Australia using open source HF digital voice.
Rowetel
Does WiFi kill houseplants?
Spoiler alert: No. To come to that conclusion, Andrew McNeil ran a pretty neat little experiment.
Hack A Day
Ultimate crimp guide with photos
Common wire-to-board, wire-to-wire connectors, and crimp tools.
Matt’s Tech Pages
In-depth: Ham Antarctic expedition
Between January 14 and February 18 I have been away from home on a research expedition to Antarctica. Several people have asked me for a post detailing my experiences.
Daniel Estévez
WiFi RF as art
The installation represents four open Wi-Fi Internet access points. By connecting to these points, visitors to the exhibition influence directly, through their network activity, a rhythmic sound generation process.
vtol
Ailunce HD1 Codeplug
If you are like me and just want to use your HD1 with a Jumbo Spot (or any hotspot) this is the easiest codeplug you’ll ever find.
K0PIR
LTE on Ham Bands in Austria
The goal is to use SDR and OpenLTE software to develop fast data transfer from 70cm upwards.
Southgate
Video
How to decode POCSAG & FLEX using an RTL-SDR Dongle
How to decode POCSAG & FLEX pager messages.
M6LME
Explained: The first geostationary satellite for Ham Radio
We take a look at the Ham Radio transponders of the new Es’Hail 2 Satellite.
Tech Minds
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Amateur Radio Weekly – Issue 230
US Amateur Radio Population Grows Slightly in 2018
The US Amateur Radio population once again grew by about 1%.
ARRL
The myth of VHF line-of-sight
I’ve come to realize the limitations of this model and how it causes radio hams to miss out on what’s possible on the VHF and higher bands.
K0NR
Ham radio and the condo life
I have been doing it for close to 7 years now and it does have it’s challenges.
VE3WDM
Random Acts of Kindness
The measure of a person is how they interact with someone who can do nothing for them in return.
AmateurRadio.com
Pi-Star hotspot getting started
The metal box is very solid, the board is good quality and the OLED display was already soldered in place. There was some soldering in that the pin headers for attaching to the Pi had to be soldered on to the Pi Zero board.
marxy.org
Receiving Es’Hail-2 GeoSat
Es’Hail-2 (QO-100) is a geostationary satellite at 25.5° East which carries transponders usable by radio amateurs.
M1GEO
Winlink on a Raspberry Pi
OH8STN
Repeater timeout project kit launched
A new project kit neatly solves the problem of alerting you before you hit the crucial timeout moment.
Essex Ham
Video
Ham Radio Deluxe Logbook 8 Things to Know
K0PIR
Dr. Tamitha Skov: Space Weather Woman
Space Weather News | Orbit Outlook and Meteors 02.21.2019
YouTube
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Amateur Radio Weekly – Issue 228

SSTV from International Space Station
The Inter-MAI amateur radio Slow Scan Television experiment in the Russian Service Module of the International Space Station is scheduled to be activated Jan 30 – Feb 1 on 145.800 MHz FM.
AMSAT UK
Will opaqueness kill Brandmeister?
In response to the ill-advised Brandmeister ban on the DV4mini devices by Corey Dean (N3FE), I approached some of the key personnel behind the Brandmeister DMR system.
K2DLS
ARRL to re-examine Parity Act
The organization needs to “review, re-examine, and reappraise ARRL’s regulatory and legislative policy with regard to private land use restrictions.”
ARRL
The 1859 Carrington Event
The Carrington Event of 1859 was a glimpse of what our star is capable of under the right circumstances, the implications of which are sobering indeed given the web of delicate connections we’ve woven around and above the planet.
Hack A Day
QRP FT8 Operating Tips
A few tips on making the most out of FT8, especially when operating QRP.
N0SPN
Industrial machines easily hacked with Software Defined Radios
Take control of building cranes, excavators, scrapers and other large industrial machines with a simple bladeRF software defined radio.
RTL-SDR.com
The Knitted Radio
The Knitted Radio is an installation piece that manifests how to knit a sweater that is also an FM radio transmitter.
Irene Posch
Video
Breaking the bandwidth barrier with your oscilloscope
What if you don’t care about getting an accurate representation? What can you do?
Keysight Labs
Quartzfest Jan 19, 2019
No other gathering in the world brings together so much hands-on demos and innovation in mobile systems.
K7AGE
Introduction to the IC-9700
We have been fortunate to have had an engineering sample of the IC-9700 VHF/UHF Base Station Amateur SDR Transceiver.
Icom
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Amateur Radio Weekly – Issue 227

Holiday Serenade on Sideband from Antarctica
This year, Ham Radio operators and SWLs around the world are invited to listen in and email listener reports.
ARRL
AO-85 battery issues
Today the nominally 3.6v pack was down to 2.8v at the end of the eclipse. That is dangerously low.
AMSAT
Logbook of The World Tops 1 Billion QSO Records
A more important statistic may be the nearly 187 million contacts confirmed via LoTW over its 15-year history.
ARRL
FT8DMC: FT8 Digital Mode Club
Everyone with a love of FT8 is welcome to join our club. All FT8DMC members are eligible to participate in various club’s activities and award programmes.
FT8DMC
[PDF] Satellite Roving in the Northwest Territories
A young ham braves rough, snowy terrain to activate rare grids.
QST Magazine
How-to: Ham Desk Project
The last Ham Radio shack desk I ever need.
K0PIR
A Look At Foot Switches
Foot switches were never a must-have Amateur Radio accessory… that is until I started contesting about 12 years ago.
VE7SAR
How-to: Receive HF SSTV with Raspberry Pi and RTL-SDR
You can also use this system to receive SSTV from the ISS (International Space Station) at 145.800 Mhz.
IT9YBG
Video
DRAWS Ham Radio Digi Mode HAT for Raspberry Pi First Look
DRAWS HAT makes integrating the Raspberry Pi with an HF radio easier and less expensive than ever before.
OH8STN
Feld Hell in action
First test with two Hell machines.
YouTube












