|City of license||Montreal, Quebec|
|Broadcast area||Greater Montreal|
|Slogan||Concordia's Underground Radio|
|Owner||Concordia Student Broadcasting Corporation|
CJLO is the official campus and community radio station for Concordia University in Montreal, Quebec and is operated almost entirely by its volunteer membership. The station broadcasts from the Loyola campus, and it can be heard at 1690 AM in Montreal, iTunes radio in the College/University category, the CJLO mobile app, or on the CJLO website.
CJLO started streaming online 7 days a week in early 2003, and the station began broadcasting by radio in the Montreal area on 1690 AM with 1000 watts of power in late 2008. The tower and transmitter are located in Lachine and the signal can be heard as far as Ottawa and Burlington, Vermont.
The station was originally formed in 1998 from the merger of CRSG, a closed circuit station at Concordia's Sir George Williams Campus, and CFLI, a carrier current station at the Loyola Campus. It continued to broadcast by closed circuit until 2003, when it launched an Internet radio stream.
The station was granted a license by the Canadian Radio-television and Telecommunications Commission in 2006 to broadcast on the AM band at 1690, and began airing a testing signal in September 2008.
On April 25, 2014, the CRTC published CJLO's application for a low-power FM retransmitter on 107.9, to alleviate reception issues downtown. The main concern with the use of 107.9 is potential interference from WVPS, Vermont Public Radio. 
CJLO has over 60 original programs, including spoken-word and shows that play a variety of musical genres such as classical, hip-hop, jazz, metal, rock alternative, and world beat.
The station currently airs the following programs:
- Anatomy of Caribbean Music, hosted by Gordon "Gee" Weekes
- The Anglo-Franco Tango, hosted by Floraine Bonneville
- At the Movies, hosted by Remi Caron
- Autobeat, hosted by MNJIVR
- Beats from the East, hosted by DJ Mister Vee
- Beat the World, hosted by Kelly "Sugarface Nene" and Neil "Mr Lalla"
- Beyond That Graveyard III, hosted by the K-Man
- Brave New Jams, hosted by Clifton Hanger
- Burnt Offerings, hosted by Cecil D. and DJ Spacepirate
- BVST, hosted by Angelica
- Caribbean Callaloo, hosted by Raphael McKenzie (DJ 610), Pete Douglas, and Gordon "Gee" Weekes
- Champions of the Local Scene, hosted by CJLO volunteers
- Chante Lakay, hosted by Schiller
- Charts & Crafts, hosted by Tim Forster
- The Commonwealth Conundrum, hosted by Rebecca Munroe and Danny Payne
- Currently Concordia, hosted by Melissa Mulligan and Nikita Smith
- Death Metal Disco Show, hosted by Emaciate Beats
- Dirty Work, hosted by Denis A.
- Exit Hour, hosted by Daniel Dixon
- Fairest Dwellings, hosted by Alex Massé
- Fear of Music, hosted by Marshall V.
- Feel Good Hit of the Summer, hosted by C.W. MacGregor
- The F Hole, hosted by Erica Bridgeman
- Funk Shui, hosted by Marina Minh Nguyen and Patricia Petit Liang
- The Game Misconduct, hosted by Google Guy, Phil, and Magg
- Glitch, Please, hosted by your best friend John Jacob
- The Go-Go Radio Magic Show, hosted by Oncle Ian and Prince Palu
- Going Down Under, hosted by Tim Forster
- Gospel Unlimited, hosted by Ray Johnston with research/talk facilitator Curtis, and produced by Tynesha
- Grade A Explosives, hosted by Andrew Wixq
- Greedy Graffiti, hosted by DJ Misschief
- Hayti Plus, hosted by Jean D.
- Haze World, hosted by Stephen K.
- Hooked on Sonics, hosted by Omar Sonics
- The Hypnotic, hosted by Yanissa
- In the Club, hosted by N.Gattuso
- Let the Rhythm Hit Em, hosted by Remission
- The Limelight, hosted by Lady Oracle, J-Nice, and Eric the Tutor
- The Link, hosted by The Link, Concordia's award-winning independent newspaper
- The Live Wire Show, hosted by Pete Douglas
- Maiden Voyage, Hosted by Beansie Saretsky
- The Midnight Caper, hosted by Kyle Fitzsimmons
- Midnight Love Affair, hosted by Mason Windels
- More Fyah, hosted by Junior Vibes and Singing P
- Morning Jazz Hour, hosted by Karl Knox
- The New Noise, hosted by Runt
- The Noisy Loft, hosted by Orin Loft
- Onomatopoeia Show, hosted by Robin F
- Phantastiq Cypha, hosted by Brian Döc Holidæ
- Pits & Poisoned Apples, hosted by Serge Del Grosso
- Purple Carrot, hosted by Anna C.
- Radio Fun, hosted by Idle Matt
- The Reaktor, hosted by Abby Schachter
- Revolution 33 1/3, hosted by Mack Mackenzie
- Rex's Barn Sessions, hosted by Rex Elroy Cliff
- Salvation from Sin, hosted by DJ Michael Terzian aka Sinister
- The Sports Grind, hosted by Gerry Brossard Jr. and Grant Robinson
- Station to Station, hosted by Ethan Ves
- Stroll Around the Groove, hosted by Julien B. and Mourad
- Twee Time, hosted by Stephanie Pastel
- The Wake-Up Call, hosted by Carlo S.
- Take 5, hosted by Connor McComb, aka DJ C-DADDY
- With Gay Abandon, hosted by Julie, aka OCDJ
Awards and Honours
CJLO is an award-winning station that has received multiple nominations and wins at the CMJ Music Marathon College Radio Awards since 2008. The station was consistently voted as one of the top-ten Best Radio Stations in The Montreal Mirror's Best of Montreal Readers Poll.
CMJ College Radio Awards
|2008||Best Student Run, Non-FM Radio Station|
|2008||Best Team Effort|
|2009||Best Team Effort|
|2010||Station of the Year|
|2010||Best Use of Limited Resources|
|2010||Best Team Effort|
|2012||Biggest Champion of the Local Scene|
Montreal Mirror Best of Montreal Readers Poll
In 2010, CJLO was ranked as one of the best college radio stations by the Huffington Post and was the only Canadian radio station selected to attend the First Annual International Radio Festival in Zurich, Switzerland. In 2013, CJLO was voted the second Best Radio Station in the CultMTL Best of MTL Readers Poll.
- Official website
- CJLO history at Canadian Communications Foundation
- Query the REC's Canadian station database for CJLO