AMATEUR RADIO & TECHNOLOGY

Think freely,
build, and enjoy radio.

AKIHABARA-GIKEN

AKIHABARA-GIKEN explores amateur radio and a wide range of technologies with an open-minded approach. Through software development and electronics projects, we find new ways to enjoy radio.

Club station JS1YJY supports the independent operating activities of Akihabara Radio Club members.

History

Mar 2022–Mar 2025
Hongo 3-chome, Bunkyo-ku, Tokyo
Apr 2025–present
Kanda-Sakumacho, Chiyoda-ku, Tokyo
Respect tradition.
Stay open to new ideas.

We value not dismissing something new simply because it challenges tradition.

PROJECTS & DEVELOPMENT

Projects & development

SOFTWARE

PS Ham-ware

Amateur radio software developed by JH1HST as part of AKIHABARA-GIKEN activities. Find information and downloads for the RTTY application PSRTTY, logging software PSLog, the TBSK application PSTBSK-X and more.

PS Ham-ware / AKIHABARA-GIKENExplore PS Ham-ware →
SPACE COMMUNICATION

ION-DTN

A personal experimental site for learning and testing networking technology that tolerates delays and disrupted connections, including its use in space communications. It offers setup notes, communication demos and a comic introduction.

Unofficial ION-DTNVisit ion-dtn.net ↗
SOURCE CODE

Development on GitHub

Development information and source code for software and electronics projects are published on GitHub. Find project documentation and updates here.

Visit GitHub ↗

INDIVIDUAL PROJECTS & CRAFT

Individual projects & electronics

ELECTRONICS & CRAFT

Moe Dummy Load

In 2025, the world’s first!? Moe Dummy Load was born! This AKIHABARA-GIKEN project adds a playful touch to electronics. Discover how it began with the oil-cooled dummy load “OCOLO-san”.

Illustration of an OCOLO-san oil-cooled dummy load and a small companionExplore the Moe Dummy Load →
CW INTERFACE

USB2CW

A CW interface that connects to a PC over USB and operates a radio’s key jack. It also supports a straight key alongside the interface. Find its design and instructions here.

Illustration of a USB2CW board protected by clear acrylic panelsExplore USB2CW →
RTTY PRINTER

RTTY printer

An electronics project that prints received RTTY text on thermal paper. It also works with PSRTTY. Find build instructions, connections and settings here.

Illustration of a thermal printer and controller board for printing RTTY messagesExplore the RTTY printer →