CHOK AM 1070 Sarnia, ON

Slogan/Positioner: CHOK 103.9 FM & 1070 AM; News-Sports-Information

Format: Full Service

Contact this station through their web site, linked below:CHOK AM 1070

Web site:

Technical Information:

HD Radio Status: no

Class: B
Daytime Power / # of Towers: 10,000 watts / 3 / directional
Nighttime Power / # of Towers: 10,000 watts / 6 / directional

Social Media:

External Links:

Note: Canadian station, data may not be accurate in American databases

Call Sign History:

  • CHOK

Call Sign Origin:


On Air Date: July 26, 1946

Owner: Blackburn Radio

Office Telephone: (519) 542-5500


  • 5/21/2013: Music format change from Country to Middle-of-the-Road; News/Sports/Information programming remains intact.
  • 7/23/2008: FM simulcast added at 103.9 with the sign on of CHOK-1-FM.
  • 1/12/2007, 6 am: Format change from Oldies/Full Service "Information Radio 1070 CHOK" to Country as "Country CHOK". CHOK still offers top of the hour local newscasts as well as a one-hour local current affairs talk program 11 AM - Noon weekdays.
  • 2005: Noted that station no longer broadcasts in AM stereo.
  • 1998: Acquired by Blackburn Radio.
  • 1970: Acquired by IWC Communications which later becomes Standard Broadcasting.
  • 1947: CHOK-FM 97.5 signs on but later leaves the air (by 1953) following damage from a tornado.
  • 7/26/1946: On air, owner is Sarnia Broadcasting.

Center of antenna array/transmitter location:

Old logo gallery:

CHOK AM 1070 CHOK AM 1070 CHOK AM 1070






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