Category: Education

Via HACKADAY: Why Do Resistors Have a Color Code?

One of the first things you learn in electronics is how to identify a resistor’s value. Through-hole resistors have color codes, and that’s generally where beginners begin. But why are they marked like this? Like red stop signs and yellow lines down the middle of the road, it just seems like it has always been […]

Via the ARRL: MIT Radio Society W1MX Announces January Lecture Series on “Everything Radio”

The Massachusetts Institute of Technology Radio Society (W1MX) and the Department of Electrical Engineering and Computer Science are hosting a lecture series in January that may answer some of your questions about such topics as radar techniques, interferometry, imaging, and radio astronomy, to antenna design and modern chip-scale RF devices. No prior experience with radio is necessary, […]

Via the ARRL: FCC Amending Amateur Radio RF Exposure Safety Rules

The FCC is amending its Part 97 Amateur Service rules relating to RF exposure safety. In a lengthy document in ET Docket 19-226 released on December 4 that addresses a broad range of RF safety issues, the FCC said current amateur radio RF exposure safety limits will remain unchanged, but that the amateur-specific exemption from […]

Via the ARRL: ARRL Self-Guided Emergency Communication Course EC-001-S is Now Available On Demand

ARRL’s EC-001-S online “Introduction to Emergency Communication” course is now available to students in an on-demand format, allowing students to register for the course and begin work at any time. This course is designed to provide basic knowledge and tools for any emergency communications volunteer. In response to the great course demand and to expand […]

Via HACKADAY: Bouncing Signals Off The Moon

One of the great things about ham radio is that isn’t just one hobby. Some people like to chit chat, some like to work foreign countries, some prepare for emergencies, and there are several space-related activities. There are hundreds of different kinds of activities to choose from. Just one is moonbounce, and [Ham Radio DX] […]

Via the ARRL: ARISS Invites Proposals to Host Ham Radio Contacts with Space Station Crew

The Amateur Radio on the International Space Station (ARISS) Program is seeking formal and informal education institutions and organizations — individually or working together — to host an Amateur Radio contact with a member of the International Space Station crew. The deadline to submit a proposal is November 30. Proposal information and documents are on […]

Via HACKADAY: Bent Electric Field Explains Antenna Radiation

We all use antennas for radios, cell phones, and WiFi. Understanding how they work, though, can take a lifetime of study. If you are rusty on the basic physics of why an antenna radiates, have a look at the very nice animations from [Learn Engineering] below. The video starts with a little history. Then it […]

Via the ARRL: ARRL Foundation Scholarship Program is Now Accepting Applications

Applications for the 2020 ARRL Foundation Scholarship Program will be accepted between September 1 and December 31, 2019. All applicants must be FCC-licensed radio amateurs, and many scholarships have other specific requirements, such as intended area of study, residence within a particular ARRL Division, Section or state, and license class. Applicants should review the scholarships […]

Via the ARRL: Efforts Continue to Enhance ARES Program, Add Resources

The ARRL Board of Directors, committees, and Headquarters administrative staff are continuing efforts to enhance the venerable Amateur Radio Emergency Service (ARES®) program. A major ARES Plan has been adopted, providing new direction going forward. In addition, a standardized training plan has been adopted and a new ARES Emergency Communicator Individual Task Book approved and […]

via the ARRL: ARRL Foundation Scholarship Program Application Window Opens on September 1

Applications for the 2020 ARRL Foundation Scholarship Program will be accepted between September 1 and December 31, 2019. All applicants must be FCC-licensed radio amateurs, and many scholarships have other specific requirements, such as intended area of study, residence within a particular ARRL Division, Section or state, and license class. Applicants should review the scholarships and check off […]

via the ARRL: World Scout Jamboree Ham Radio Balloon Crosses Atlantic

An APRS Amateur Radio balloon, call sign NA1WJ-5, launched from the recent World Scout Jamboree in West Virginia, has floated across the Atlantic Ocean. The Scouting Magazine blog reports: “You can reach practically any corner of the globe via Amateur Radio. That’s the message K2BSA wanted to show Scouts at the World Scout Jamboree. Those in the Amateur Radio association […]

Balloon launched from World Scout Jamboree floats across the Atlantic Ocean

You can reach practically any corner of the globe via amateur radio. That’s the message K2BSA wanted to show Scouts at the World Scout Jamboree. Those in the amateur radio association launched four mylar balloons from the Summit Bechtel Reserve in West Virginia, in hopes that one would catch the jet stream and end up on the other side of […]

via the ARRL: IEEE Symposium Exhibit Displays the Breadth of Amateur Radio

Amateur Radio received excellent exposure during the IEEE International Symposium on Antennas and Propagation July 7 – 12 in Atlanta, Georgia. Some 1,400 delegates from 23 countries attended, and many visited ARRL’s exhibit to learn more about Amateur Radio. Three active Amateur Radio stations were available via remote Internet connections. “I wanted the booth to be inviting […]

via the ARRL: IEEE Microwave Theory and Techniques Society Seeks Student CubeSat RF Hardware Proposals

The IEEE Microwave Theory and Techniques Society (MTT-S) has announced the MTT-Sat Challenge for groups of students developing RF hardware for CubeSat applications. The MTT-Sat Challenge is a worldwide competition for teams of undergraduate and graduate students to design and build RF hardware for small satellites. The most promising designs will undergo space environmental qualification testing and […]

via the ARRL: Millions of AMPRNet Internet Addresses Sold to Fund Grants and Scholarships

The proceeds from this month’s sale of some 4 million unused consecutive AMPRNet internet addresses will fund operations of the non-profit Amateur Radio Digital Communications (ARDC), establishing a program of grants and scholarships program in support of communications and networking research — with a strong emphasis on Amateur Radio, a lengthy ARDC news release said. ARDC manages […]

via the ARRL: ARRL Offers “What is Amateur Radio?” Video and PowerPoint Presentation

ARRL has produced and is making available the downloadable video, “What is Amateur Radio?” to use at club meetings and at public events, including ARRL Field Day, June 22 – 23. A PowerPoint version is also available for members to download. Recognizing the tremendous need and desire for such a product among ARRL members, ARRL’s Lifelong Learning Department initiated […]

via the ARRL: Tuning Electrically Short Antennas for Field Operation is Research Topic

An article by two well-known radio amateurs, “Tuning Electrically Short Antennas for Field Operation,” appeared in Microwave Journal. Authored by QEX Editor Kai Siwiak, KE4PT, and award-winning researcher Ulrich Rohde, N1UL, the article points out that both Amateur Radio and military applications exist for 20-W battery-powered radios equipped with whip antennas. “In general, the whip antenna which makes the […]

via the ARRL: Yasme Foundation Designates Supporting Grant, Excellence Award Recipients

The Board of Directors of The Yasme Foundation has awarded $5,000 each to the Foundation for Amateur Radio (FAR) and ARRL scholarship programs for 2019, and $5,000 in general support to World Radiosport Team Championship 2022 (WRTC 2022) in Italy and a second grant to sponsor the so-called “Widow’s Ball” during WRTC 2022. via American Radio Relay […]