I was first licensed as JA0CUV in Feb 1966 when I was 16.

Then I learned CW and upgraded to 1st class JA license.

I also licensed JE1CKA in 1970 and KH0AM -Amateur Extra in 1989.

I operated number of DX countries; 1971:C21/JE1CKA, 1972:S21CW & 8Q6AH, 1974:VR1AK, VR4CW, VR8D & YJ8CW.

I managed over 80 VE exam sessions in Tokyo and Saipan(KH0) between 1990-2001 as a leader of Tokyo-VE team.

Recent operations from DX

March 2007: 9M4SDX from Layang Layang of Spratly group for 2weeks as a JA team leader

July 2009: EA9/KH0AM from Melilla, Africa

April 2011: KH0AM/KH2 from Guam during JIDX-CW

April 2012: 9M0L from Layang Layang of Spratly group for 2weeks as a JA team leader again.

I've been active in the contest as Multi-Multi from the mountain top QTH in Hannoh, Saitama (JCC #1309) .

Now I have 2towers. #1:30m, full size Yagi for 14MHz-5el, 21MHz-5el & Dipole for 3.5/3.8MHz. I sometime extended wire for 160m.

#2:18m, 7MHz-2el, 28MHz-5el and 50-MHz-8el.