Japanese cities contacted by me with a homemade transceiver       

Akita,
Aomori,
Asahikawa,
Chiba,
Fukuoka,
Hokkaido,
Kagoshima,
Kanazawa,
Kumamoto,
Kyoto,
Matsuyama,
Nagano,
Nara,
Okayama,
Osaka,
Sapporo,
Sendai,
Shizuoka,
Tokyo,
Tottori,
Toyama,
Yamagata,
Yokohama