A site for Amateur Radio Operators, by Amateur Radio Operators.





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Ridgeway Repeater Group

HD8M Galapagos
DX Resources/DX Peditions/2023 DXpeditions
March 1-11 2023 DXPedition to Galapagos, Santa Cruz Island SA-004
Portable 40m CW Transceiver
Technical Reference/QRP Projects/QRP CW Transceiver
Homemade portable transceiver for the 40 meters band.
The Art of Telegraphy: Learning Morse Code with a Practice Oscillator
The importance of having a Morse practice oscillator for those who want to learn Morse code. Options for buying or building one.
28 MHz Antenna Project
10m Flowerpot Antenna, monoband half-wave vertical coaxial dipole antenna for 28 Mhz.
W8LT - A History of Amateur Radio at Ohio State University

W8LT is the call sign for the Amateur Radio and RF Club at The Ohio State University (OSU).

The university club has a long history, and archive records indicate that 1926 was the year it officially became a club, likely making it the oldest one on campus. W8LT is just 3 years shy of celebrating its 100th anniversary.

In the early 1920s, the call sign started out as 8LT, until the Radio Act of 192...

ARRL Headquarters will be Closed on Tuesday, February 28

Due to anticipated severe winter weather, ARRL Headquarters will be closed on Tuesday, February 28 for the safety of our staff. We expect things will be back to normal on Wednesday, March 1.

Software/Aircraft scatter
Aircraft Scatter Sharp is a windows application to calculate and assist airscatter operations. Real-time capture and display of plane position data derived from internet plane servers, highlighting of aircraft near the ideal position for scatter, Real-time estimation of Doppler shift and its rate of change.
Amateur Radio on the International Space Station Seeking Contact Proposals

The Amateur Radio on the International Space Station (ARISS) program is seeking formal and informal educational institutions and organizations, either individually or working together, to host an amateur radio contact with a crew member on board the International Space Station (ISS).

ARISS anticipates the contact will be held between January 1, 2024, and June 30, 2024. Crew scheduling and ISS or...

3B7M St Brandon DXPedition
DX Resources/DX Peditions/2023 DXpeditions
Saint Brandon expedition 3B7M 2023. Official web site
Top Amateur Radio Websites - Issue 2308
Reverse Polarity Protection, QRM Eleminator by DC2WK, Astatic Mic Wiring Handbook, Ham365, The battle with massive RFI problems in the shack, Worked All Britain Award,
Knightlites QRP Association
Founded in 1995 (or thereabouts) by a small group of QRP enthusiasts in central North Carolina, Knightlites membership quickly started spanning the globe.
Thevenin equivalent calculator
Software/Circuit Design
The Thevenin equivalent simplifies a complex circuit into an equivalent circuit with a voltage source and resistor for easy analysis of voltage and current at any point in the circuit. Use this online Thevenin calculator
2022 Roanoke Division ARRL Service Award Recipient Selected

John Gendron, NJ4Z, has been named the recipient of the 2022 Roanoke Division ARRL Service Award. This award is the highest and most prestigious recognition of an ARRL member operator within the Division's four states who has shown consistent and extensive leadership.

First licensed as a Technician in 2016, Gendron quickly advanced to the General- and Amateur Extra-class licenses. At the same ti...

Airplane scattering
Operating Modes/Aircraft scatter
Operating on Airplane scattering. Scattering of radio signals by airplanes. An introduction to operating ariplane scattering, using aircraft to redirect RF that would otherwise be lost in space. Antenna Pointing, Doppler Shift/Digital Modes, using digital modes to operate airscatter.
ARRL Audio News February 24, 2023

ARRL Audio News February 24, 2023

ARRL Welcomes Kevin Beal, K8EAL, as the Director of Development

Kevin Beal, K8EAL, has joined ARRL staff as the Director of Development. He has a significant background in nonprofit administration, and for the last 17 years, has managed large-scale projects and teams. His previous experience includes various roles supporting organizations and higher education institutions with program management, events, alumni engagement, and fundraising. 

Beal has also wo...

KE8RV Madison County Amateur Radio Club
A mission of the club is to promote amateur radio by way of educational programming and activities. MCARC is an affiliated club with the ARRL.
Aircraft Scatter ACS
Operating Modes/Aircraft scatter
Getting started with Aircraft scatter, defined as the process of scatter radio waves of the body of a traveling aircraft in order to enhance the distance possible to bridge on VHF, UHF and microwaves. The ACS path, Equipment requirement and Operating techniques
Bouvet Island DXpedition Wraps Up

The 3Y0J activation of Bouvet Island has finished. The team concluded operations at 3:00 UTC on February 14, 2023, with around 19,000 contacts logged.

The team has boarded the S/V Marama and began their journey to Cape Town, South Africa. They expect to arrive by February 23.

Photos uploaded to social media by Steve Haas, N2AJ, the team's Media Officer, show the harsh reality of the operating env...

20 W HF Power Amplifier
Technical Reference/Amplifiers/HF Amplifiers
A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.
Tri-Band VHF/UHF Antenna Design
Antennas/VHF UHF
The TBJ-1 – a triband base antenna was published in March 2017 QST. This antenna covers 2M/220 MHz/70cm in one 6ft 3/4 inch PVC pipe and requires no radials.
Building The Fox-in-a-Box
Technical Reference/Raspberry Pi
Raspberry Pi Telemetry Station project by Burns Fisher, WB1FJ , Chris Thompson G0KLA/AC2CZ. A step by step guide on Building a Fox-In-A-Box The Easy Way, A Prebuilt SD Card Image or from scratch.
Top Amateur Radio Websites - Issue 2307
The M0CVO HW-42HP OCF Antenna, 160m 80m Vertical Antenna, 80m-40m Loaded Dipole, 80m Shortened Dipole Antenna, Band Pass Filters for HF Transceivers, Digital Dummy Load, Kenwood TS480HX Firmware Upgrade,
IARU Holds First 2023 Meeting

The 56th meeting of the Administrative Council of the International Amateur Radio Union (IARU) was held via Zoom on January 16, with President Tim Ellam, VE6SH, presiding.

The council received reports from the officers of each of the three regions. The meeting's focus was on the International Telecommunication Union's (ITU) upcoming World Radiocommunication Conference (WRC-23) later this year in...

Taking a look at the 900 MHz band
Operating Aids/Radio Spectrum
Use of the band as Amateur Radio is secondary in this band to federal radiolocation systems, industrial, scientific and medical devices, federal fixed and mobile systems and the M-LMS. Bandplans for hams. Allocation in 902 - 928 MHz
Amateur Radio Digital Communications Releases 2022 Annual Report

Amateur Radio Digital Communications (ARDC) has released it's 2022 Annual Report detailing grants made for amateur radio projects.

In 2022, overall, ARDC approved nearly $6.7 million in grants, and distributed nearly $7.7 million.

ARDC's 2022 grants were distributed in four categories: Amateur Radio, Education, Scholarships, and Research & Development. Below is a list of the total grant amounts d...

W4DUX Peace River Radio Association
Serving Amateur Radio Operators in Charlotte County Florida
Portable HAM radio station
Operating Modes/Portable Operations
Guide to setting up a portable ham radio station, selecting the right components and buying the correct ones, finally setting up and assembling the whole elements.
ARRL Audio News February 17, 2023

ARRL Audio News for February 17, 2023

Resistor combination finder
Technical Reference/Calculators
If you need a non-standard resistor value you could probably realize a close match using two resistor. If you use two resistor in series it is quite easy to figure out which values give the best match; on the other hand, using a parallel connection it is not so easy (at least for me) to find a good combination. This resistor calculation tool shows which combinations of two resistors (series or parallel) gives a match better than the closest standard value, for the E12 (10%), E24 (5%) and E96 (1%) series.
Two elelemts Telescopic Yagi for 2 Meters
A lightweight PVC hand-held telescopic 2 element 2m (145 MHz) yagi using two pairs of TV rabbit ear antennas as the driven and reflector elements. Approximate directional gain is 5dB.
ARRL Headquarters will be Closed on Monday, February 20, 2023

ARRL Headquarters will be closed on Monday, February 20, 2023, for Presidents’ Day. There will be no W1AW bulletin or code practice transmissions on that day. ARRL HQ will reopen on Tuesday, February 21, at 8 AM EST.

The Mount Vernon Amateur Radio Club of Alexandria, Virginia will celebrate the 291st birthday of George Washington at Mount Vernon, the former plantation of George Washington and h...

QRP Dummy Load
Technical Reference/Dummy Loads
This is another variation on the parallel resistor, dummy load. It is perfect for QRP HF operation of 5-watts or less average power, and should be adequate for continuous operation at that level. It's light and compact, about 2-1/2 in length overall.
W4LHS The Coastal Amateur Radio Society


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