The Columbia Amateur Radio Club is now a Weather-Ready Nation (WRN) Ambassador.
The Columbia Amateur Radio Club is excited to collaborate with NOAA/NWS to help strengthen our nation’s readiness against extreme weather, water, and climate events. If you would like more information, please visit the Weather-Ready Nation Ambassador Frequently Asked Questions. And if you need any additional information, email WRN anytime at [email protected]. You can also find WRN on X (previously Twitter) @WRNAmbassadors.
We are excited to announce that at the January Club meeting, we have a special guest: Craig KM6LYW. Craig KM6LYW is a trailblazer in the amateur radio community, known for blending traditional ham radio practices with cutting-edge technology will be joining the Clubs Zoom meeting. As the creator of DigiPi, a compact, Raspberry Pi-based platform for digital communications, KM6LYW has made digital modes more accessible and affordable for amateur radio enthusiasts worldwide. The Club Zoom meeting details are at the end on this article.
The DigiPi is a versatile and user-friendly solution that supports popular digital modes like FT8, JS8Call, APRS, and more. By combining modern software with low-cost hardware, KM6LYW has empowered operators to explore the exciting world of digital amateur radio without needing expensive, specialized equipment.
Beyond developing the DigiPi, KM6LYW is passionate about supporting the ham radio community. He actively shares his knowledge, engages with fellow enthusiasts, and fosters innovation to ensure that digital amateur radio continues to thrive. Explore the world of digital amateur radio with KM6LYW and DigiPi—where tradition meets innovation.
In addition to exploring the exciting world of DigiPi and digital amateur radio, we’re excited to share that the club will offer our members a variety of amateur radio hobby items. Whether you’re a seasoned operator or just starting, you’ll find a range of gear and accessories to enhance your amateur radio experience. These items are available on a donation basis, and all proceeds will go directly to supporting the club’s activities, resources, and outreach efforts. It’s a great way to get something you need while giving back to the community that keeps the hobby alive and thriving! Bring your $$$.
Here’s how you could present the additional topics for the meeting:
Additional Meeting Topics
Join us for a dynamic and informative meeting as we dive into several exciting topics, including:
Harbison 50K Review: This is a look back at the event and the role amateur radio played in its success.
Winter Field Day: Preparation and strategies for this popular event to hone emergency communication skills.
South Carolina QSO Party: Tips for participating and maximizing your contact logs during this state-focused radio contest.
Hams and Eggs & New Lunch and Learn: Discover these engaging opportunities to connect, share, and learn in a casual setting.
Hands-On Experience: A practical session to explore and practice amateur radio techniques.
April CARC Swapfest: Get a preview of this must-attend event for buying, selling, or trading amateur radio gear.
ARRL Summer Field Day: Early planning for one of the most significant events in amateur radio, focusing on teamwork and readiness.
Whether you’re a long-time operator or new to the hobby, there’s something for everyone at this meeting. Don’t miss out!
The Columbia Amateur Radio Club (CARC) is thrilled to invite amateur radio enthusiasts, hobbyists, and collectors to our Annual Swapfest in beautiful Columbia, South Carolina! This year’s event promises to be bigger and better than ever, offering a fantastic opportunity to buy, sell, and trade amateur radio gear, meet fellow hams, and participate in the vibrant community of amateur radio operators. Please note the traffic pattern in the image above, and note that the parking lot is divided into two sections: visitors and vendors. The event will open to the public at 8:00 am, and the club set up is from 7:00 am to 8:00 am. THIS IS A GUIDED EVENT. PLEASE FOLLOW THE INSTRUCTIONS IN THE PARKING LOT.
Event Details:
Event Name: Columbia Amateur Radio Club Swapfest
Date: Saturday, April 26, 2025
Time: 8:00 AM – 1:00 PM
Location: North Trenholm Baptist Church, 6515 N. Trenholm Road, Columbia, SC
Admission: FREE. See the Important Information section for vendor/seller details.
The Columbia Amateur Radio Club (CARC) is thrilled to invite amateur radio enthusiasts, hobbyists, and collectors to our Annual Swapfest in beautiful Columbia, South Carolina! This year’s event promises to be bigger and better than ever, offering a fantastic opportunity to buy, sell, and trade amateur radio gear, meet fellow hams, and participate in the vibrant community of amateur radio operators. Please note the traffic pattern in the image above, and note that the parking lot is divided into two sections: visitors and vendors. The event will open to the public at 8:00 am, and the club set up is from 7:00 am to 8:00 am. THIS IS A GUIDED EVENT. PLEASE FOLLOW THE INSTRUCTIONS IN THE PARKING LOT.
Event Details:
Event Name: Columbia Amateur Radio Club Swapfest
Date: Saturday, April 26, 2025
Time: 8:00 AM – 1:00 PM
Location: North Trenholm Baptist Church, 6515 N. Trenholm Road, Columbia, SC
Admission: FREE. See the Important Information section for vendor/seller details.
From the ARRL Division News Roanoke Division Email:
ANTENNA RELIEF BILL REINTRODUCED – Identical versions of The Amateur Radio Emergency Preparedness Act have been reintroduced in Congress in both the House and the Senate. If passed and signed into law, the legislation would require homeowner associations to accommodate the needs of FCC-licensed Amateur Radio operators by prohibiting the enforcement of private land use restrictions that ban, prevent, or require the approval of the installation or use of Amateur Radio station antennas. Among other provisions, this legislation would prohibit homeowner association rules that would preclude or ban Amateur Radio antennas, specify an approval process for installing Amateur Radio antennas, and provide a federal private right of action to Amateur Radio operators in disputed cases. The bill numbers are HR1094 for the House version and S459 for the Senate bill. ARRL will be coordinating a grassroots campaign to have members contact their congressional representatives for support.
The text of the House Bill can be found at the link below:
Hi I’m Michael‚ KB9VBR‚ and I’m on a mission to inspire and educate the amateur radio community. I’ve been a ham radio operator since 1999‚ so my interests are varied and run deep. But most of all‚ ham radio is more than a hobby; it’s a lifestyle that I enjoy and love to share with others.
My goal is to share positive and uplifting videos. I’ll answer your questions and take deeper dives into some of the mysterious parts of ham radio. Whether you are a new ham or a grizzled veteran‚ I’m sure there will be something you’ll like. Ham Radio Q&A answers your amateur radio questions and explores the different aspects of the hobby.
Ham Radio Q&A is brought to you by KB9VBR Antennas: Supplier of Amateur Radio, Land Mobile, Scanner, Low Power FM, and Airband VHF/UHF Antennas.
We are excited to announce that at the January Club meeting, we have a special guest: Craig KM6LYW. Craig KM6LYW is a trailblazer in the amateur radio community, known for blending traditional ham radio practices with cutting-edge technology will be joining the Clubs Zoom meeting. As the creator of DigiPi, a compact, Raspberry Pi-based platform for digital communications, KM6LYW has made digital modes more accessible and affordable for amateur radio enthusiasts worldwide. The Club Zoom meeting details are at the end on this article.
The DigiPi is a versatile and user-friendly solution that supports popular digital modes like FT8, JS8Call, APRS, and more. By combining modern software with low-cost hardware, KM6LYW has empowered operators to explore the exciting world of digital amateur radio without needing expensive, specialized equipment.
Beyond developing the DigiPi, KM6LYW is passionate about supporting the ham radio community. He actively shares his knowledge, engages with fellow enthusiasts, and fosters innovation to ensure that digital amateur radio continues to thrive. Explore the world of digital amateur radio with KM6LYW and DigiPi—where tradition meets innovation.
In addition to exploring the exciting world of DigiPi and digital amateur radio, we’re excited to share that the club will offer our members a variety of amateur radio hobby items. Whether you’re a seasoned operator or just starting, you’ll find a range of gear and accessories to enhance your amateur radio experience. These items are available on a donation basis, and all proceeds will go directly to supporting the club’s activities, resources, and outreach efforts. It’s a great way to get something you need while giving back to the community that keeps the hobby alive and thriving! Bring your $$$.
Here’s how you could present the additional topics for the meeting:
Additional Meeting Topics
Join us for a dynamic and informative meeting as we dive into several exciting topics, including:
Harbison 50K Review: This is a look back at the event and the role amateur radio played in its success.
Winter Field Day: Preparation and strategies for this popular event to hone emergency communication skills.
South Carolina QSO Party: Tips for participating and maximizing your contact logs during this state-focused radio contest.
Hams and Eggs & New Lunch and Learn: Discover these engaging opportunities to connect, share, and learn in a casual setting.
Hands-On Experience: A practical session to explore and practice amateur radio techniques.
April CARC Swapfest: Get a preview of this must-attend event for buying, selling, or trading amateur radio gear.
ARRL Summer Field Day: Early planning for one of the most significant events in amateur radio, focusing on teamwork and readiness.
Whether you’re a long-time operator or new to the hobby, there’s something for everyone at this meeting. Don’t miss out!
This little radio was shown at the November 4th club meeting by Jim Lathan W4JLP.
It can be purchased as a kit ~$90.00 or a ready to operate ~$140.00. Make sure to order via the official suppliers list here. You will receive a serial number with an official kit/radio and need the serial number to download future firmware upgrades.
Here is the main website for the radio and more information. https://dl2man.de/
Permanent link to this article: https://w4cae.com/trusdx/
A few years ago, I decided to upgrade my PC. In researching, I found a mini fan-less PC that runs on a 12v wall wart. After researching my software wouldn’t have any issues I purchased and installed the software I use.
The only issue I had was that even with my off the shelf UPS system the PC would reboot during bad weather. I investigated and found the wall wart was susceptible to power line transits.I thought about using one of my ham radio power supplies, which I thought was way over kill.
Searching the internet I found that battery operation was preferable. But then again it was much more than I needed. Then on “YouTube” I found them using an oversize AA with a voltage of 3.7v. This is actually called a 18650 cell as the designated size. What was impressive was the different capacities viable on “Amazon”. These cost from $2.25 in multiples and capacities from 2000mah to 9900mah
More research indicated I could build a DIY UPS with no switching time and a fairly large run time. Since the most time I have been without power has been less than 1 hour. So I sat down and worked out a wiring diagram. The schematics program I use is called “Fritzing”. Here is a link to the webpage for the software. https://fritzing.org/
Here is the parts list, cost supplier.
12v 18650 UPS BOM
QTY
Label
Part Type
Unit
Part Number
Supplier
1
Case
Enclosure
$18.99
Blue Metal Enclosure.7 x 4.33 x 3.1 inch
Amazon
1
120vac to 12vdc
S-350-60 Power Supply
$12.98
12v @ 5amp
Amazon
1
5.15V Out
Generic female header – 2 pins
$1.44
Terminal Binding Post Spring Clip 2-Way
Amazon
1
AC1
AC Power
$1.83
Inlet Module Plug Socket Power Entry
Amazon
3
Bat1
18650 Battery
$5.97
3.7v @ 9900ma
Amazon
1
C1
Electrolytic Capacitor
$0.35
470uf
Amazon
1
D1
Rectifier Diode
$0.05
1N4007
Amazon
1
DS2Y-5-DC5V1
DS2Y-12-DC12V
$1.00
HK19F-DC 5V-SHG Signal Relay
Amazon
1
LED1
LED
$0.04
3mm Green (570nm)
Amazon
1
R1
Resistor
$0.05
470kΩ
Amazon
1
S1
Push-button
$0.53
Momentary (NO)
Amazon
1
TP1
BMS Li-ion Charger
$0.64
3S 12V 10A 18650 Lithium Battery Protection Board
Amazon
1
U1
Buck converter
$3.24
Mini-360 Step-up DC-DC
Amazon
1
VM1
Voltmeter
$2.16
3 digit LED (2 wire)
Amazon
Total
$49.27
Here are a couple of pictures of the finished unit.
The Future-
Since I also operate a couple of Raspberry Pi’s 24/7, I am refining the schematic with a couple of changes and will build one for 5v.
Mike- N7ETA (Extra Terrestrial Amateur)
Do you have a project you would like to share on our webpage?
If so please send a brief write-up with info, pictures and any other information to the webmaster, John W4SFX at [email protected]
Permanent link to this article: https://w4cae.com/12v-ups-for-mini-pc/
