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Japan Amateur Radio League's Unique Contribution to the 2025 Osaka-Kansai Expo

The Japan Amateur Radio League (JARL), led by President Koji Morita (JA5SUD), is set to play a significant role in the upcoming Osaka-Kansai Expo 2025. Centered around the theme of "Designing a Future Society in Which Life Shines," this international exposition will feature a special amateur radio station named "8K3EXPO" within its grounds, marking a unique collaboration as the "Operational Supplier" of the expo.

Expanding Global Communication

JARL's initiative will see this special station operate from April 13 to October 13, 2025, for the full duration of the expo. The 8K3EXPO station will enable amateur radio operators from across the globe to connect and engage, thereby broadcasting updates and information about the expo to an international audience. This will not only promote the event but enhance international exchange and collaboration within the amateur radio community.

Special Station Details

Timeline

• - Operation Duration: 184 days
• - Start Date: April 13, 2025
• - End Date: October 13, 2025

Call Sign

• - 8K3EXPO for both mobile and fixed stations

Frequency and Power Output

• - Frequencies from 1.8MHz to 10GHz, with a maximum output of 1kW planned.

Location

• - Permanent Installation: Yumesima, Osaka, within the expo staff parking area.

Antenna and Equipment

• - A variety of antennas will be stationed, including a 10m tower and multiple Yagi antennas for various frequency bands. Equipment such as IC-7300 and TS-890D transceivers will be provided by contributing companies, ensuring high-quality operations throughout the expo.

Celebrating Radio History

Interestingly, the call sign "8K" represents a significant moment in amateur radio, marking the first time such a prefix has been used in Japan. Additionally, JARL will be launching a mobile station called "JA3XPO," which honors the original call sign used during the 1970 World Expo in Suita, Osaka. This nostalgic revival is set to circulate through various prefectures in the Kansai region.

Opportunities for Engagement

During the expo, volunteers from JARL’s Kansai headquarters and local branches will be present at the operation booth in the East Gate Zone. Licensed amateur radio operators will have the chance to operate under the special call sign. Additionally, those without licenses will be able to participate in a hands-on experience under supervision.

Important Notice

Attendees should note that bringing amateur radio equipment and certain other communication devices into the expo venue is prohibited. This regulation is put in place to avoid potential issues and maintain a controlled environment.

Opening Ceremony on April 13

The special station will officially open with a ceremony on April 13, 2025, at 10 AM, where President Koji Morita will initiate the first transmission, establishing connections not only across Japan but worldwide.

Stay Updated

For the latest updates on the 8K3EXPO and JA3XPO, visit the official JARL website or their Facebook page for real-time information and opportunities to interact with this exciting project.

About Amateur Radio

Amateur radio, a beloved hobby that allows individuals holding licenses to communicate wirelessly with people around the world, remains a deeply-rooted tradition. Often referred to as the "King of Hobbies" before the internet era, it continues to attract enthusiasts. Today, its applications range from technical experiments and international exchanges to crucial emergency communications. A thriving community of licensed amateurs exists in Japan, showcasing the enduring appeal of this unique form of communication.

About JARL

The Japan Amateur Radio League, established to promote the advancement of amateur radio in Japan, is gearing up for its 100th anniversary in 2026, coinciding with the 100th anniversary of the establishment of amateur radio in Japan in 2027. Collaborative events will be planned to celebrate these significant milestones, enhancing the connection between amateur radio enthusiasts across the globe.