Biography

I opened amateur radio station on 6m band in December 1973. I enjoyed making SSB/CW transmitters and receivers when I was a student. It was a great pleasure to communicate with many friends by the rigs which oneself made.

I experienced the development of the local oscillator of very small satellite earth station after graduating from the university. However, I stopped amateur radio communication from then.

I built Elecraft K2 SSB/CW transceiver kit and restarted amateur radio communication in autumn 2007. First the SSB sound at the transmission was very bad. I had a hard time with the improvement.

I began to make a 7 band Cubical Quad from December 2008 , and it was completed in February 2009. It works 2 elements on 40m and 30m , 4 elements on 20m,17m,15m,12m and 10m.