CISO-FM

This article needs to be updated. Please help update this article to reflect recent events or newly available information. (November 2010)

CISO-FM

Orillia, Ontario
Broadcast area	Simcoe County
Frequency	89.1 MHz (FM)
Branding	89.1 Max FM
Programming
Language	English
Format	Modern rock
Ownership
Owner	Bayshore Broadcasting
Sister stations	CHGB-FM
History
First air date	Late 2010
Technical information
Class	A
ERP	2.5 kWs
HAAT	154.1 meters (506 ft)
Links
Webcast	Listen Live
Website	891maxfm.ca

CISO-FM is a Canadian radio station, which broadcasts a modern rock format at 89.1 MHz in Orillia, Ontario. The station is branded as 89.1 Max FM.^[1]

Owned by Bayshore Broadcasting, the station received CRTC approval on June 1, 2009.^[2][3]

The station launched in late 2010 as an adult contemporary format branded as Sunshine 89.1.

On November 1, 2018, CISO-FM rebranded to 89.1 Max FM with a classic hits format playing the best of the 70's, 80's and 90's.

On May 17, 2019, the station changed its format to modern rock but retained its "Max FM" branding.

Max FM is a popular radio station that broadcasts a variety of shows, including music, talk shows, and sports shows. The station has a wide range of listeners, from young people to adults.

• CISO-FM at The History of Canadian Broadcasting by the Canadian Communications Foundation
• CISO-FM in the REC Canadian station database

44°33′15″N 79°33′21″W / 44.55417°N 79.55583°W / 44.55417; -79.55583

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