SR meaning in Radio Science ?

Slaight Communications is a Canadian radio broadcasting company. The company was formed as Slaight Broadcasting in 1971, when owner J. Allan Slaight acquired CFGM in Richmond Hill. Slaight later also acquired CFOX in Montreal and CHOK in Sarnia, and launched CILQ in Toronto.

The company later sold off all of its original assets, and continued to operate its radio holdings through the Standard Broadcasting division after Slaight bought out that company in 1985. As Standard, it remained the largest privately owned multimedia company in Canada until it sold its radio and TV broadcasting assets to Astral Media in 2007. Today, all of Standard Radio stations are either owned by Bell Media or Stingray Radio.

The company continues to operate holdings in non-traditional broadcast platforms such as satellite radio and Internet radio. Slaight also continues to hold minority investments in three other small radio station groups.