The JARL has announced the largest amateur radio event in the world, the Tokyo Ham Fair, due to be held 31st October and 1st November 2020 has been cancelled due to Coronavirus

The Tokyo Ham Fair was first held in 1977 at Harumi Fairgrounds which was located in Harumi, Tokyo, and has been held annually ever since. In 1996, the venue was changed to Tokyo Big Sight, which is located in Ariake, Tokyo. From 1999 to 2001, the venue was Pacifico Yokohama, located in Yokohama, Kanagawa prefecture with the event returning to the Tokyo Big Sight in 2002.

In 2019, 42,000 people are reported to have visited the event which usually takes place in August. For 2020 it was moved because of the expected Olympic and Paralympic Games during the summer.

JARL Announcement - https://www.jarl.org/Japanese/1_Tanoshimo/1-3_Ham-Fair/2020/Ham-Fair_c.htm