| Updated Subcategory: (Muskegon Area Intermediate School District (MAISD)) | Thunderbolt | 2026-08-17 17:15:40 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (Muskegon Area Intermediate School District (MAISD)) | Thunderbolt | 2026-08-17 17:15:37 |
| Added Subcategory: (Schools and Colleges/Muskegon Area Intermediate School District (MAISD)) | Thunderbolt | 2026-08-17 17:14:54 |
| Frequencies Imported (8) | Thunderbolt | 2026-08-05 04:14:15 |
| Updated Subcategory: (Reeths-Puffer Schools) | Thunderbolt | 2026-08-05 04:09:01 |
| Added related trunked system (DeltaCom) to subcategory: (Reeths-Puffer Schools) | Thunderbolt | 2026-08-05 04:08:58 |
| Added Subcategory: (Schools and Colleges/Reeths-Puffer Schools) | Thunderbolt | 2026-08-05 04:07:09 |
| Updated Subcategory: (Holton Public Schools) | Thunderbolt | 2026-08-05 04:00:30 |
| Added related trunked system (DeltaCom) to subcategory: (Holton Public Schools) | Thunderbolt | 2026-08-05 04:00:21 |
| Updated Subcategory: (Orchard View District Schools) | Thunderbolt | 2026-08-05 03:55:37 |
| Added related trunked system (DeltaCom) to subcategory: (Orchard View District Schools) | Thunderbolt | 2026-08-05 03:55:33 |
| Frequencies Updated (1) | Thunderbolt | 2026-08-05 03:53:08 |
| Frequencies Imported (8) | Thunderbolt | 2026-08-05 03:52:59 |
| Added Subcategory: (Schools and Colleges/Orchard View District Schools) | Thunderbolt | 2026-08-05 03:48:22 |
| Updated Subcategory: (Ravenna Public Schools) | Thunderbolt | 2026-08-05 03:29:04 |
| Added related trunked system (DeltaCom) to subcategory: (Ravenna Public Schools) | Thunderbolt | 2026-08-05 03:29:01 |
| Frequencies Updated (1) | Thunderbolt | 2026-08-05 03:27:48 |
| Frequencies Imported (1) | Thunderbolt | 2026-08-05 03:27:38 |
| Frequencies Imported (3) | Thunderbolt | 2026-08-05 03:24:59 |
| Updated Subcategory: (Ravenna Public Schools) | Thunderbolt | 2026-08-05 03:21:38 |
| Added Subcategory: (Schools and Colleges/Ravenna Public Schools) | Thunderbolt | 2026-08-05 03:15:50 |
| Updated Subcategory: (North Muskegon Public Schools) | Thunderbolt | 2026-08-05 03:08:50 |
| Added related trunked system (DeltaCom) to subcategory: (North Muskegon Public Schools) | Thunderbolt | 2026-08-05 03:08:44 |
| Updated Subcategory: (North Muskegon Public Schools) | Thunderbolt | 2026-08-05 03:07:59 |
| Added Subcategory: (Schools and Colleges/North Muskegon Public Schools) | Thunderbolt | 2026-08-05 03:07:14 |
| Updated Subcategory: (Fruitport Community Schools) | Thunderbolt | 2026-08-05 03:05:56 |
| Added related trunked system (DeltaCom) to subcategory: (Fruitport Community Schools) | Thunderbolt | 2026-08-05 03:05:52 |
| Frequencies Updated (2) | Thunderbolt | 2026-08-05 03:04:30 |
| Frequencies Imported (5) | Thunderbolt | 2026-08-05 03:04:15 |
| Frequencies Imported (2) | Thunderbolt | 2026-08-05 02:58:06 |
| Updated Subcategory: (Fruitport Community Schools) | Thunderbolt | 2026-08-05 02:55:34 |
| Added Subcategory: (Schools and Colleges/Fruitport Community Schools) | Thunderbolt | 2026-08-05 02:54:40 |
| T and W Electronics (DMR 334) System Updated (Updated 1 talkgroups for T and W) | Thunderbolt | 2026-08-04 18:25:49 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) Law Enforcement) | Thunderbolt | 2026-06-16 19:24:18 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Muskegon County (61) Law Enforcement) | Thunderbolt | 2026-06-16 19:24:00 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Imported talkgroups (1 Added, 0 Updated) for Muskegon County (61) Law Enforcement) | Thunderbolt | 2026-06-16 19:23:27 |
| Agency (Businesses, Railroads, Media, Attractions and Recreation [5]) changed to (Businesses, Media, Attractions and Recreation [5]) | Ronaldski | 2026-04-26 13:45:47 |
| Agency: (Businesses, Media, Attractions and Recreation) was updated | Ronaldski | 2026-04-26 13:45:47 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65400 school bus 40)) | wirr | 2026-03-14 11:44:57 |
| Deleted Subcategory: (Municipalities/Muskegon Heights) | Ronaldski | 2026-01-04 18:33:15 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) Fire) | Ronaldski | 2025-11-24 05:09:00 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) EMS/Hospital) | Ronaldski | 2025-11-22 18:13:19 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Muskegon County (61) Law Enforcement) | Ronaldski | 2025-08-22 22:38:07 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Added Talkgroup to: Muskegon County (61) School/County Government (23770 Muskegon Area Intermediate School District Common)) | Ronaldski | 2025-05-20 00:56:56 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Changed Talkgroup Category: Muskegon County (61) Local/County Government to Muskegon County (61) School/County Government) | Ronaldski | 2025-05-20 00:55:52 |
| T and W Electronics (DMR 334) System Updated (Updated 3 talkgroups for T and W) | Thunderbolt | 2025-01-17 14:52:37 |
| T and W Electronics (DMR 334) System Updated (Imported talkgroups (2 Added, 0 Updated) for T and W) | Ronaldski | 2025-01-16 18:45:11 |
| Frequencies Deleted (1) | Ronaldski | 2025-01-10 21:08:08 |
| Frequencies Updated (1) | Ronaldski | 2025-01-10 21:07:14 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) Fire) | Ronaldski | 2024-09-22 04:59:42 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Added Talkgroup to: Muskegon County (61) EMS/Hospital (23732 Trinity EMS Echo 200 Page)) | Ronaldski | 2024-09-15 13:58:35 |
| Added Frequency 146.94 (General Use) | Ronaldski | 2024-02-10 20:13:25 |
| Frequencies Updated (1) | Ronaldski | 2024-02-10 20:10:49 |
| T and W Electronics (DMR 334) System Updated (Updated System Location Details) | Ronaldski | 2024-01-10 15:01:51 |
| Agency: (Businesses, Railroads, Media, Attractions and Recreation) was updated | Ronaldski | 2024-01-06 20:02:57 |
| Agency: (Businesses, Railroads, Media, Attractions and Recreation) was updated | Ronaldski | 2024-01-06 19:58:04 |
| Frequencies Updated (1) | Ronaldski | 2024-01-06 19:52:55 |
| Frequencies Updated (1) | Ronaldski | 2024-01-06 19:52:21 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Imported talkgroups (5 Added, 0 Updated) for Muskegon County (61) Common/Interop) | Ronaldski | 2023-12-16 18:29:33 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Deleted 1 talkgroup(s) from Muskegon County (61) Fire) | Ronaldski | 2023-10-03 01:37:35 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Muskegon County (61) Common/Interop) | Ronaldski | 2023-10-03 01:12:53 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 1 talkgroups for Muskegon County (61) Fire) | Ronaldski | 2023-10-03 01:12:09 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) Local/County Government) | Ronaldski | 2023-08-19 14:26:37 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) Fire) | Ronaldski | 2023-06-12 14:47:05 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated Service Tag assignments for 1 talkgroups for Muskegon County (61) Fire) | Ronaldski | 2023-05-31 13:30:34 |
| Subcategory (White Lake Ambulance Service) deleted | Ronaldski | 2023-03-22 17:17:23 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Imported talkgroups (8 Added, 0 Updated) for Muskegon County (61) Fire) | Ronaldski | 2023-01-17 23:49:44 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 1 talkgroups for Muskegon County (61) EMS/Hospital) | Ronaldski | 2023-01-13 17:03:59 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated 4 talkgroups for Muskegon County (61) EMS/Hospital) | Ronaldski | 2023-01-13 16:39:53 |
| T and W Electronics (DMR 334) System Updated (Updated System Location Details) | Ronaldski | 2023-01-10 19:57:10 |
| T and W Electronics (DMR 334) System Updated (Updated System Description Text) | Ronaldski | 2023-01-09 05:25:31 |
| T and W Electronics (DMR 334) System Updated (Updated System Location Details) | Ronaldski | 2023-01-09 05:25:28 |
| Tagged 2 Frequencies with (Deprecated) | Ronaldski | 2023-01-09 05:03:12 |
| Tagged 1 Frequencies with (Deprecated) | Ronaldski | 2023-01-09 04:59:56 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Changed Site # 050 (Muskegon County Simulcast) to 50 (Muskegon County Simulcast)) | Thunderbolt | 2022-12-27 05:27:38 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Changed Site # 050 (Muskegon County Simulcast) to 50 (Muskegon County Simulcast)) | Thunderbolt | 2022-12-27 05:25:28 |
| DeltaCom System Updated (Changed Site # 025 (Muskegon) to 25 (Muskegon)) | wirr | 2022-12-15 01:56:49 |
| DeltaCom System Updated (Updated System Description Text) | wirr | 2022-12-15 01:44:48 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65751 school custodian)) | wirr | 2022-12-12 03:23:47 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65720 dump trucks)) | wirr | 2022-12-12 03:23:23 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65580 Wayland Union Schools bus)) | wirr | 2022-12-12 03:22:59 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65530 hanivan)) | wirr | 2022-12-12 03:22:23 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65495 school 495)) | wirr | 2022-12-12 03:21:58 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65493 school 493)) | wirr | 2022-12-12 03:21:40 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65260 hostlers)) | wirr | 2022-12-12 03:21:08 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65240 contractor)) | wirr | 2022-12-12 03:19:28 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65170 school bus 17)) | wirr | 2022-12-12 03:19:07 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65010 lawn service)) | wirr | 2022-12-12 03:18:17 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65040 school bus 4)) | wirr | 2022-12-12 03:17:43 |
| T and W Electronics (DMR 334) System Updated (Added Talkgroup to: T and W (65030 bus service 3)) | wirr | 2022-12-12 03:17:10 |
| T and W Electronics (DMR 334) System Updated (Updated System Location Details) | wirr | 2022-12-12 03:04:53 |
| T and W Electronics (DMR 334) System Updated (Changed Site # 011 (Site 11) to 11 (Site 11)) | wirr | 2022-12-12 03:03:34 |
| T and W Electronics (DMR 334) System Updated (Updated System Location Details) | wirr | 2022-12-12 03:02:52 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Imported talkgroups (1 Added, 0 Updated) for Muskegon County (61) Local/County Government) | Thunderbolt | 2022-12-03 18:01:31 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Changed Talkgroup Category: Muskegon County (61) County Government to Muskegon County (61) Local/County Government) | Thunderbolt | 2022-12-03 17:58:48 |
| Consumers Energy System Updated (General text description updated) | Ronaldski | 2022-09-15 02:30:42 |
| DeltaCom System Updated (Added Talkgroup Category: Muskegon Area) | wirr | 2022-07-10 01:10:13 |
| Michigan's Public Safety Communications System (MPSCS) System Updated ((1) Talkgroups Updated (Muskegon County (61) Fire)) | Ronaldski | 2022-06-12 17:39:03 |
| Michigan's Public Safety Communications System (MPSCS) System Updated ((1) Talkgroups Updated (Muskegon County (61) Fire)) | Thunderbolt | 2022-06-12 16:52:37 |
| Michigan's Public Safety Communications System (MPSCS) System Updated (Updated encryption settings for 4 talkgroups(Muskegon Cou | Ronaldski | 2022-05-10 19:02:22 |
