| Frederick County, MD System Updated (Updated mode assignments for 7 talkgroups for Fire) | dtscho | 2026-10-15 15:12:14 |
| Frederick County, MD System Updated (Updated mode assignments for 9 talkgroups for County Services) | dtscho | 2026-10-15 15:11:31 |
| Frederick County, MD System Updated (Updated 1 talkgroups for County Services) | dtscho | 2026-10-15 15:10:30 |
| Frederick County, MD System Updated (Updated General System Details) | dtscho | 2026-10-15 15:10:17 |
| Amazon Data Center (Frederick, MD) System Updated (Deleted Talkgroup Category: All) | dtscho | 2026-08-11 19:04:22 |
| Amazon Data Center (Frederick, MD) System Updated (Added Talkgroup Category: All) | dtscho | 2026-08-11 19:03:51 |
| Amazon Data Center (Frederick, MD) System Updated (Added Site # 1 (Confirmed LCN)) | dtscho | 2026-08-11 19:03:35 |
| Amazon Data Center (Frederick, MD) System Updated (Updated General System Details) | dtscho | 2026-08-11 19:02:48 |
| National Institutes of Health System Updated (Added Talkgroup to: All (7045 Security)) | dtscho | 2026-07-15 19:15:03 |
| National Institutes of Health System Updated (Added Talkgroup Category: All) | dtscho | 2026-07-15 19:14:29 |
| Joint National Capital Region System Updated (Updated encryption settings for 1 talkgroups for National Geospatial-Intelligence Agency (St Louis)) | Starcom21 | 2026-06-19 20:47:06 |
| Joint National Capital Region System Updated (Added Talkgroup to: National Geospatial-Intelligence Agency (St Louis) (1686 Operations (St Louis) 1686)) | Starcom21 | 2026-06-19 20:46:15 |
| Frequencies Imported (2) | ericcarlson | 2026-06-16 14:45:34 |
| Added Subcategory: (Amateur Radio/GMRS) | ericcarlson | 2026-06-16 14:44:47 |
| Frederick County, MD System Updated (Changed Site # 001 (Simulcast) to 1 (Simulcast)) | dtscho | 2026-04-04 19:13:23 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Changed Site # 028 (Tower Road ASR) to 28 (Tower Road ASR)) | dtscho | 2026-03-18 16:46:53 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Changed Site # 016 (Gambrill Mountain ASR) to 16 (Gambrill Mountain ASR)) | dtscho | 2026-03-16 19:40:09 |
| Washington Gas Light Company System Updated (Updated General System Details) | dtscho | 2026-03-13 03:28:39 |
| Joint National Capital Region System Updated (Updated System Description Text) | Starcom21 | 2026-03-12 01:23:35 |
| Joint National Capital Region System Updated (Added Talkgroup to: National Geospatial-Intelligence Agency (St Louis) (1605 Maintenance/Plumbing )) | Starcom21 | 2026-03-12 00:29:02 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency (St Louis)) | Starcom21 | 2026-03-12 00:08:25 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency) | Starcom21 | 2026-03-12 00:06:56 |
| Joint National Capital Region System Updated (Added Talkgroup to: National Geospatial-Intelligence Agency (1603 Radio Techs)) | Starcom21 | 2026-03-11 23:53:55 |
| Washington Gas Light Company System Updated (Updated System Location Details) | brian86 | 2026-02-16 05:47:45 |
| Joint National Capital Region System Updated (Updated 12 Sites) | theaton | 2026-01-05 19:38:52 |
| Updated Subcategory: (Emmittsburg) | dtscho | 2025-10-30 14:06:33 |
| Frequencies Updated (1) | dtscho | 2025-10-30 14:06:19 |
| Joint National Capital Region System Updated (Updated 10 talkgroups for National Geospatial-Intelligence Agency) | tknepp32 | 2025-10-24 13:20:47 |
| Frequencies Updated (2) | ericcarlson | 2025-10-23 22:00:00 |
| Frequencies Updated (2) | ericcarlson | 2025-10-23 21:59:51 |
| Frequencies Imported (2) | ericcarlson | 2025-10-23 21:59:30 |
| Frequencies Updated (1) | ericcarlson | 2025-10-23 21:58:46 |
| Frequencies Updated (1) | ericcarlson | 2025-10-23 21:58:40 |
| Frequencies Imported (1) | ericcarlson | 2025-10-23 21:58:27 |
| Agency: (Businesses) was updated | dtscho | 2025-10-13 22:41:39 |
| Agency: (Businesses) was updated | dtscho | 2025-10-13 22:41:06 |
| Agency: (Businesses) was updated | dtscho | 2025-09-24 14:40:33 |
| Agency: (Businesses) was updated | dtscho | 2025-09-24 14:39:29 |
| Agency: (Businesses) was updated | dtscho | 2025-09-24 14:38:23 |
| Agency: (Businesses) was updated | dtscho | 2025-09-24 14:34:18 |
| Frequencies Deleted (2) | dtscho | 2025-09-24 14:32:58 |
| Agency: (Businesses) was updated | dtscho | 2025-09-24 14:31:48 |
| Frequencies Deleted (1) | dtscho | 2025-09-24 14:31:06 |
| Frequencies Deleted (1) | dtscho | 2025-09-24 14:30:50 |
| Frequencies Deleted (2) | dtscho | 2025-09-24 14:30:34 |
| Joint National Capital Region System Updated (Updated 2 talkgroups for National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-21 00:40:30 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-21 00:40:15 |
| Added Frequency 463.6625 (Frederick High School - Janitors) | dtscho | 2025-09-17 16:01:50 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-15 20:28:00 |
| Joint National Capital Region System Updated (Updated 1 talkgroups for National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-15 20:26:55 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-15 20:26:33 |
| Joint National Capital Region System Updated (Updated mode assignments for 1 talkgroups for National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-15 20:25:34 |
| Joint National Capital Region System Updated (Updated General System Details) | Starcom21 | 2025-09-15 20:25:17 |
| Frederick County, MD System Updated (Updated 1 talkgroups for Fire) | dtscho | 2025-08-20 16:53:56 |
| Frederick County, MD System Updated (Updated 2 talkgroups for Fire) | ericcarlson | 2025-08-18 00:59:20 |
| Frederick County, MD System Updated (Added Talkgroup to: Fire (1527 92G Special Event)) | ericcarlson | 2025-08-18 00:57:55 |
| Frederick County, MD System Updated (Updated 2 talkgroups for Fire) | ericcarlson | 2025-08-18 00:57:02 |
| Frederick County, MD System Updated (Updated 13 talkgroups for Fire) | ericcarlson | 2025-08-18 00:55:39 |
| Frequencies Updated (6) | ericcarlson | 2025-08-18 00:51:42 |
| Frequencies Updated (3) | ericcarlson | 2025-08-18 00:51:08 |
| Frequencies Updated (3) | ericcarlson | 2025-08-18 00:50:53 |
| Frequencies Imported (3) | ericcarlson | 2025-08-18 00:50:36 |
| Agency: (Businesses) was updated | ericcarlson | 2025-05-10 20:02:35 |
| Agency: (Businesses) was updated | ericcarlson | 2025-05-10 19:29:17 |
| Agency: (Businesses) was updated | ericcarlson | 2025-05-10 19:28:45 |
| Agency: (Businesses) was updated | ericcarlson | 2025-05-10 19:28:31 |
| Agency: (Businesses) was updated | ericcarlson | 2025-05-10 16:56:30 |
| AstraZeneca - MedImmune System Updated (Changed Site # 001 (Site 1) to 1 (Site 1)) | ericcarlson | 2025-05-09 23:59:21 |
| Added Frequency 451.4375 (Mother Seton School) | dtscho | 2025-05-06 14:11:20 |
| Added Frequency 464.175 (Libertytown Elementary School) | dtscho | 2025-04-13 17:52:40 |
| Joint National Capital Region System Updated (Updated 6 talkgroups for National Geospatial-Intelligence Agency) | Starcom21 | 2025-03-28 16:24:32 |
| Joint National Capital Region System Updated (Added Talkgroup to: National Geospatial-Intelligence Agency (58636 Operations (St Louis))) | Starcom21 | 2025-03-28 16:23:56 |
| Agency: (Businesses) was updated | dtscho | 2025-01-25 16:40:23 |
| Frequencies Imported (3) | theaton | 2025-01-23 15:12:25 |
| Frequencies Imported (3) | theaton | 2024-12-23 04:55:47 |
| Frequencies Imported (2) | theaton | 2024-12-22 02:35:40 |
| Frequencies Imported (1) | theaton | 2024-12-22 01:52:58 |
| Joint National Capital Region System Updated (Updated encryption settings for 8 talkgroups for Naval District Washington - Police) | GTR8000 | 2024-12-20 02:43:53 |
| Frequencies Imported (1) | theaton | 2024-12-11 20:22:52 |
| Frederick County, MD System Updated (Updated 5 talkgroups for Fire) | theaton | 2024-12-05 14:08:33 |
| Frederick County, MD System Updated (Updated 36 talkgroups for Fire) | theaton | 2024-12-05 14:07:31 |
| Agency: (Frederick Municipal Airport (FDK)) was updated | ericcarlson | 2024-12-01 18:26:25 |
| Agency: (Frederick Municipal Airport (FDK)) was updated | ericcarlson | 2024-12-01 18:25:47 |
| Agency: (Frederick Municipal Airport (FDK)) was updated | ericcarlson | 2024-12-01 18:25:41 |
| Washington Gas Light Company System Updated (Changed Site # 085 (Frederick) to 85 (Frederick)) | mtindor | 2024-10-24 10:48:37 |
| Washington Gas Light Company System Updated (Changed Site # 085 (Frederick) to 85 (Frederick)) | mtindor | 2024-10-24 10:39:41 |
| Washington Gas Light Company System Updated (Updated General System Details) | mtindor | 2024-10-24 10:38:26 |
| Washington Gas System Updated (Added Site # 85 (Frederick)) | mtindor | 2024-10-24 10:37:11 |
| Added Frequency 452.4375 (Crestwood Middle School 2) | dtscho | 2024-10-16 16:09:12 |
| Frequencies Updated (1) | dtscho | 2024-10-16 16:08:22 |
| Joint National Capital Region System Updated (Imported talkgroups (9 Added, 0 Updated) for Systemwide) | ericcarlson | 2024-10-05 20:45:42 |
| Joint National Capital Region System Updated (Added Talkgroup Category: Systemwide) | ericcarlson | 2024-10-05 20:43:30 |
| Added Frequency 452.4375 (Crestwood Middle School) | dtscho | 2024-10-03 17:53:21 |
| Added Frequency 464.1375 (Windsor Knolls Middle School) | dtscho | 2024-10-03 17:51:46 |
| Added Frequency 457.1375 (Thurmont Primary School) | dtscho | 2024-09-15 18:48:09 |
| Joint National Capital Region System Updated (Updated System Location Details) | Starcom21 | 2024-09-12 22:59:08 |
| Joint National Capital Region System Updated (Updated System Description Text) | Starcom21 | 2024-09-12 22:57:12 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Added Talkgroup to: Frederick County (5700 Frederick 6)) | dtscho | 2024-06-02 04:04:28 |
| Frederick County, MD System Updated (Updated 1 talkgroups for County Services) | dtscho | 2024-04-14 16:08:21 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Added Talkgroup to: Frederick County (5699 Frederick 5)) | dtscho | 2024-04-07 19:46:44 |
