I have started JA7TNO since 1972 as my first HAM radio station in my life. I was a student at Sendai 1st High School (JA7YDX). It was a kind of boom to have a HAM license amongst boys and even girls who love something new, something electro-mechanical things, or some advanced communication way like as today's Blog, SNS, Twitter, other communications through the internet. As far as I knew, about 5-10% of my friends had HAM licenses when I was a student at Tohoku University (JA7YAA). 

It was a fun moment to enjoy experimental antenna works such as 2 element wire YAGI at 7MHz while beam ANT itself was not yet popular in JAPAN in early 70's. I enjoyed building up over 20-30 different good antennas for JA7TNO, JA7YDX, and JA7YAA in my school boy days. My ANT works drove those club stations into very active in contesting. 

After graduate Univ., my activity became not so high after 10 years and so far I changed my hobby to sailing, dance (Square Dance and Round Dance) for another 10 years for each.

In 2005, I suddenly restarted my HAM life with JA1CTB for home, then restarted JA7TNO in 2007 for portable operation.