| Time (Eastern US) | Author | Comment (most recent last) | Actions |
| 1981-12-07 00:00:00 | | Call Sign changed from 800702AC to KBPS | Reply to |
| 1983-12-02 00:00:00 | FCC App# 53324 | FCC approved station to begin licensed operation | Reply to |
| 2003-09-26 00:00:00 | FCC App# 688422 | FCC approved transfer of license from SCHOOL DIST. #1 MULTNOMAH COUNTY, OR to KBPS PUBLIC RADIO FOUNDATION | Reply to |
| 2006-04-04 00:00:00 | FCC App# 1060668 | FCC approved station to begin licensed operation | Reply to |
| 2007-09-10 00:00:00 | FCC App# 1203945 | FCC was notified license transfer is complete | Reply to |
| 2009-04-16 00:00:00 | | Call Sign changed from KBPS to KQAC | Reply to |
| 2009-07-28 12:04:38 | editor | Successful Volunteer Test - 38 Seconds | Reply to |
| 2009-11-14 12:43:48 | WesternMA | Successful Volunteer Test - 57 Seconds | Reply to |
| 2010-12-31 12:22:53 | SumItUp | Stream (Windows) worked while testing Classical Music | Reply to |
| 2011-02-04 12:34:00 | editor | Successful Volunteer Test (Windows) - 18 Seconds | Reply to |
| 2011-05-12 09:59:56 | Devo | Successful Volunteer Test (Windows) - 41 Seconds | Reply to |
| 2012-01-07 08:32:03 | editor | Stream (iPhone) worked while testing Classical Music | Reply to |
| 2014-08-02 04:59:58 | editor | Stream (iPhone) worked while testing Classical Music | Reply to |
| 2025-08-03 15:40:52 | editor | Updated Schedule URL to https://www.allclassical.org/programs/ | Reply to |
