Tokyo International Amateur Radio Association



The next TIARA meeting will be Friday, July 18th (N.B. the third Friday) at the Nakameguro Juku Center.


TIARA President Arie Lukkassen, JE1RYS, will make a presentation on electronic circuit simulation with an emphasis on simple RF circuits, Monte Carlo design test verification, bode diagrams and plenty of easy to follow examples. He will show simple circuits which everyone can follow and the focus will be on showing the capabilities of the tool.

His aim is to get you interested in trying out one of those exciting simulator programs and learn and improve your electronic circuit knowledge. It is kind of homebrew without buying or soldering the parts together. Also most software includes virtual Test & Measurement Equipment and the results are very realistic.

These software simulators are not useless toys but are used by all major companies to improve R&D efficiencies (to do more with less), improve time to market and reduce the number of prototype iterations and recently also used at Universities to teach electronics.

If you have time please have a look at this YouTube link. It shows an overview of the TINA tool which we will use during the presentation.

The Tokyo International Amateur Radio Association (TIARA) holds monthly meetings in English usually in Jiyugaoka, Tokyo. Jiyugaoka is just a few minutes from Shibuya on the Tokyu Toyoko Line, or from Oimachi on the Tokyu Oimachi Line. Meetings are held on the third Friday of most months except August (Field Day & Ham Fair) and December (Christmas Party). The meetings are open not only to members, but other English-speaking hams and foreigners residing in or visiting Japan interested in amateur radio.

Mobile/HT talk-in frequency: 144.570 (100.0 hz tone)

On the Air Meeting

TIARA members gather on 21.320 MHz at 1000 JST (0100Z) most Sundays for an informal chat. Join us! You can also participate by connecting to the TIARA VoIP network.

Officers Re-Elected March, 2012

President Arie Lukkassen JE1RYS/KI6EWA
Vice-President Dan Domondon 7J1ABD/WA6URY
Treasurer/Secretary Fumi OHTSUKA JF1NIW/KI4HSU

Past Officers

Internet Mailing List

The 7J1 mailing list on Yahoo Groups discusses topics of interest to foreign amateur operators in Japan. You can subscribe or visit the archives using the web interface or by sending a blank email to 7j1-subscribe at yahoogroups.com.


TIARA sponsors the JR1VI repeater in Tokyo. 434.980in/439.980out and 1297.980in/1292.980out, 77Hz subaudible tone. The repeater is typically linked to the TIARA VoIP systems. The repeater system was taken down for maintenance on 2014-03-31.


TIARA uses a combination of IRLP, WIRES, and and EchoLink to build a VoIP network in Tokyo. You are welcome to join us on the air via:

IRLP Typically connected to Reflector 9202
WIRESRoom 0522
EcholinkConnect to 7J1YAA-L (811259) or 7J1AJH-L (979606)
JR1YPM1291.92- MHz (88.5Hz), Meguro-ku, Tokyo

US Amateur Exams in Tokyo

The ARRL VEC Tokyo VE Team (which is not directly affiliated with TIARA, but which contains some members) conducts examinations for US amateur radio licenses at least twice a year in the Tokyo area.

The next session will be held July 26th at the Takinogawa Higashi-Kumin Center. Information and pre-registration are available from ARRL VEC Tokyo. Start studying now! A US amateur license can be your gateway to getting a Japanese reciprocal license while you are here.

You can also check the ARRL US amateur exam registry for Japan to find other sessions.

Operating in Japan

Questions and Comments
This website is maintained by Jim Tittsler 7J1AJH/AI8A/ZL2IA. Your comments and suggestions are welcome.

Last modified: Sun Jul 13 02:22:16 JST 2014