| Updated Subcategory: (Eastern Michigan University (Ypsilanti)) | Thunderbolt | 2026-08-29 17:07:27 |
| Added related trunked system (Washtenaw County Government) to subcategory: (Eastern Michigan University (Ypsilanti)) | Thunderbolt | 2026-08-29 17:07:22 |
| Updated Subcategory: (Eastern Michigan University (Ypsilanti)) | Thunderbolt | 2026-08-29 17:05:47 |
| Updated related trunked system (Michigan's Public Safety Communications System (MPSCS)) for subcategory: (Eastern Michigan University (Ypsilanti)) | Thunderbolt | 2026-08-29 17:05:37 |
| Updated Subcategory: (Ann Arbor City) | Thunderbolt | 2026-08-29 17:04:56 |
| Added related trunked system (Washtenaw County Government) to subcategory: (Ann Arbor City) | Thunderbolt | 2026-08-29 17:04:24 |
| Added related trunked system (University of Michigan (P25)) to subcategory: (Ann Arbor City) | Thunderbolt | 2026-08-29 17:02:42 |
| Updated Subcategory: (County Services) | Thunderbolt | 2026-08-29 17:01:08 |
| Added related trunked system (Washtenaw County Government) to subcategory: (County Services) | Thunderbolt | 2026-08-29 17:00:49 |
| Updated Subcategory: (Police) | Thunderbolt | 2026-08-29 16:59:57 |
| Added related trunked system (Washtenaw County Government) to subcategory: (Police) | Thunderbolt | 2026-08-29 16:59:48 |
| Updated Subcategory: (Fire and EMS) | Thunderbolt | 2026-08-29 16:57:57 |
| Added related trunked system (Washtenaw County Government) to subcategory: (Fire and EMS) | Thunderbolt | 2026-08-29 16:57:39 |
| Added related trunked system (University of Michigan (P25)) to subcategory: (Fire and EMS) | Thunderbolt | 2026-08-29 16:56:19 |
| Mobile Communications America (MCA) Michigan System Updated (Updated System Description Text) | Thunderbolt | 2026-08-27 04:00:43 |
| Mobile Communications America (MCA) Michigan System Updated (Updated System Description Text) | Thunderbolt | 2026-08-27 04:00:37 |
| Mobile Communications America (MCA) Michigan System Updated (Updated General System Details) | Thunderbolt | 2026-08-27 03:58:52 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Washtenaw County (81) Public Schools) | Thunderbolt | 2026-08-20 23:10:26 |
| Added related trunked system (Washtenaw County Government) to subcategory: (University of Michigan (Ann Arbor)) | Thunderbolt | 2026-08-19 18:08:57 |
| Frequencies Updated (1) | Thunderbolt | 2026-08-05 02:45:59 |
| Frequencies Updated (1) | Thunderbolt | 2026-08-05 02:40:59 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 4 talkgroups for Washtenaw County (81) Law Enforcement) | Thunderbolt | 2026-07-28 19:40:21 |
| Washtenaw County Government System Updated (Updated 2 talkgroups for Radio Technicians) | Thunderbolt | 2026-07-24 12:35:55 |
| Washtenaw County Government System Updated (Imported talkgroups (2 Added, 0 Updated) for Radio Technicians) | Thunderbolt | 2026-07-24 12:35:17 |
| Frequencies Updated (1) | Thunderbolt | 2026-07-23 16:37:09 |
| General Motors: Willow Run System Updated (Changed Site # 001 (Willow Run) to 1 (Willow Run)) | Thunderbolt | 2026-07-17 15:24:44 |
| Updated Subcategory: (Lincoln Consolidated Schools) | Thunderbolt | 2026-06-10 19:22:16 |
| Updated related trunked system (Lincoln Consolidated Schools) for subcategory: (Lincoln Consolidated Schools) | Thunderbolt | 2026-06-10 19:22:13 |
| Washtenaw County Government System Updated (Imported talkgroups (3 Added, 0 Updated) for Radio Technicians) | Thunderbolt | 2026-05-15 18:12:52 |
| Washtenaw County Government System Updated (Added Talkgroup Category: Radio Technicians) | Thunderbolt | 2026-05-15 18:10:39 |
| Washtenaw County Government System Updated (Updated General System Details) | Thunderbolt | 2026-05-12 03:10:20 |
| Updated Subcategory: (Lincoln Consolidated Schools) | Thunderbolt | 2026-05-01 23:29:25 |
| Added related trunked system (Lincoln Consolidated Schools) to subcategory: (Lincoln Consolidated Schools) | Thunderbolt | 2026-05-01 23:29:22 |
| Lincoln Consolidated Schools System Updated (Updated General System Details) | Thunderbolt | 2026-04-24 19:53:19 |
| Lincoln Consolidated School System Updated (Updated General System Details) | Thunderbolt | 2026-04-24 19:53:02 |
| Frequencies Updated (5) | Thunderbolt | 2026-04-19 16:07:08 |
| Frequencies Imported (5) | Thunderbolt | 2026-04-19 16:06:10 |
| Frequencies Deleted (1) | Thunderbolt | 2026-04-19 15:28:34 |
| Frequencies Imported (1) | Thunderbolt | 2026-04-19 15:09:09 |
| Washtenaw Community College System Updated (Updated 1 talkgroups for Security) | Thunderbolt | 2026-04-19 15:04:29 |
| Washtenaw Community College System Updated (Imported talkgroups (1 Added, 0 Updated) for Security) | Thunderbolt | 2026-04-19 15:04:04 |
| University of Michigan (P25) System Updated (Updated System Description Text) | Thunderbolt | 2026-01-29 18:11:07 |
| Deleted related trunked system (Ann Arbor-Washtenaw County Government System) from subcategory: (Ann Arbor City) | Thunderbolt | 2026-01-28 16:47:05 |
| Deleted related trunked system (Ann Arbor-Washtenaw County Government System) from subcategory: (County Services) | Thunderbolt | 2026-01-28 16:45:31 |
| Agency: (Businesses, Recreations and Attractions) was updated | Thunderbolt | 2026-01-18 16:54:00 |
| Agency: (Businesses, Recreations and Attractions) was updated | Ronaldski | 2026-01-17 20:06:50 |
| Updated Subcategory: (Chelsea School District) | Thunderbolt | 2026-01-09 15:13:51 |
| Added related trunked system (Chelsea School District) to subcategory: (Chelsea School District) | Thunderbolt | 2026-01-09 15:13:43 |
| Updated Subcategory: (Chelsea School District) | Thunderbolt | 2026-01-09 15:12:54 |
| Updated Subcategory: (State of Michigan) | Thunderbolt | 2026-01-09 15:04:06 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (State of Michigan) | Thunderbolt | 2026-01-09 15:04:02 |
| Updated Subcategory: (Washtenaw Community College (Ann Arbor)) | Thunderbolt | 2026-01-09 15:01:59 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (Washtenaw Community College (Ann Arbor)) | Thunderbolt | 2026-01-09 15:01:54 |
| Updated Subcategory: (Washtenaw Community College (Ann Arbor)) | Thunderbolt | 2026-01-09 15:00:53 |
| Added related trunked system (Washtenaw Community College) to subcategory: (Washtenaw Community College (Ann Arbor)) | Thunderbolt | 2026-01-09 15:00:48 |
| Chelsea School District System Updated (Updated General System Details) | Thunderbolt | 2026-01-09 04:46:47 |
| Frequencies Updated (1) | Thunderbolt | 2026-01-09 04:14:21 |
| Frequencies Updated (2) | Thunderbolt | 2026-01-09 04:05:02 |
| Agency: (Businesses, Recreations and Attractions) was updated | Thunderbolt | 2026-01-08 02:26:13 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (DTE Energy: Gas) | Thunderbolt | 2026-01-08 02:26:06 |
| Agency: (Businesses, Recreations and Attractions) was updated | Thunderbolt | 2026-01-08 02:25:37 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (DTE Energy: Electric) | Thunderbolt | 2026-01-08 02:25:29 |
| Agency: (Businesses, Recreations and Attractions) was updated | Ronaldski | 2026-01-07 19:52:45 |
| Agency: (Businesses, Recreations and Attractions) was updated | Ronaldski | 2026-01-07 19:52:29 |
| Agency: (Businesses, Recreations and Attractions) was updated | Ronaldski | 2026-01-07 19:52:06 |
| Agency: (Businesses, Recreations and Attractions) was updated | Ronaldski | 2026-01-07 19:51:12 |
| Frequencies Deleted (1) | Ronaldski | 2026-01-07 19:43:53 |
| Frequencies Deleted (1) | Ronaldski | 2026-01-07 19:41:15 |
| Frequencies Deleted (1) | Ronaldski | 2026-01-07 19:37:23 |
| Frequencies Deleted (3) | Ronaldski | 2026-01-07 19:26:39 |
| Frequencies Deleted (1) | Ronaldski | 2026-01-07 19:24:10 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 15 talkgroups for Washtenaw County (81) Common/Interop) | Ronaldski | 2025-11-24 05:06:28 |
| Updated Subcategory: (City of Ypsilanti) | Thunderbolt | 2025-11-16 15:17:09 |
| Updated Subcategory: (City of Manchester) | Thunderbolt | 2025-11-16 15:16:36 |
| Updated Subcategory: (Ypsilanti) | Thunderbolt | 2025-11-16 15:15:48 |
| Updated Subcategory: (Village of Manchester) | Thunderbolt | 2025-11-16 14:39:25 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Washtenaw County (81) Public Schools) | Ronaldski | 2025-10-11 18:43:16 |
| Agency: (Businesses, Recreations and Attractions) was updated | ericcarlson | 2025-09-20 18:06:23 |
| Agency: (Businesses, Recreations and Attractions) was updated | ericcarlson | 2025-09-20 18:05:50 |
| Agency: (Businesses, Recreations and Attractions) was updated | ericcarlson | 2025-09-20 18:05:44 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Washtenaw County (81) Common/Interop) | Ronaldski | 2025-06-22 17:09:33 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Washtenaw County (81) Law Enforcement) | Ronaldski | 2025-05-11 18:26:54 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 2 talkgroups for Washtenaw County (81) Law Enforcement) | Thunderbolt | 2025-05-09 01:47:35 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Washtenaw County (81) Law Enforcement) | Thunderbolt | 2025-05-09 01:03:41 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 2 talkgroups for Washtenaw County (81) Law Enforcement) | Ronaldski | 2025-05-03 17:40:44 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Imported talkgroups (2 Added, 0 Updated) for Washtenaw County (81) Law Enforcement) | Ronaldski | 2025-05-03 17:40:28 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 2 talkgroups for Washtenaw County (81) Law Enforcement) | Thunderbolt | 2025-04-20 16:30:36 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Washtenaw County (81) Fire-Rescue) | Ronaldski | 2025-04-20 03:02:49 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 2 talkgroups for Washtenaw County (81) Law Enforcement) | Ronaldski | 2025-04-20 02:35:59 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 19 talkgroups for Washtenaw County (81) Fire-Rescue) | Ronaldski | 2025-04-20 02:33:14 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 16:17:18 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 16:02:45 |
| Frequencies Imported (1) | Thunderbolt | 2025-04-10 15:59:05 |
| Added Frequency 444.625 (General Use Repeater (Willis)) | Thunderbolt | 2025-04-10 15:50:35 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 15:47:42 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 15:46:03 |
| Added Frequency 224.72 (KF8AU) | Thunderbolt | 2025-04-10 15:44:09 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 15:27:40 |
| Frequencies Updated (1) | Thunderbolt | 2025-04-10 15:18:21 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Washtenaw County (81) Fire-Rescue) | Ronaldski | 2025-04-10 00:50:59 |
