| Southern Maryland Electric Cooperative System Updated (Added Site # 1 (Prince Frederick)) | dtscho | 2026-04-18 19:36:31 |
| Southern Maryland Electric Cooperative System Updated (Updated System Description Text) | dtscho | 2026-04-18 19:01:43 |
| Exelon Energy P25 System Updated (Updated encryption settings for 7 talkgroups for Atlantic City Electric) | GTR8000 | 2026-04-14 14:59:07 |
| Agency: (Calvert County GMRS) was updated | dtscho | 2026-03-16 02:34:15 |
| 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 00:06:57 |
| Joint National Capital Region System Updated (Added Talkgroup to: National Geospatial-Intelligence Agency (1603 Radio Techs)) | Starcom21 | 2026-03-11 23:53:55 |
| Joint National Capital Region System Updated (Updated 12 Sites) | theaton | 2026-01-05 19:38:52 |
| Agency: (Calvert County GMRS) was updated | theaton | 2025-11-28 01:01:39 |
| Agency: (Calvert County GMRS) was updated | theaton | 2025-11-27 14:01:12 |
| Agency: (Calvert County GMRS) was updated | theaton | 2025-11-27 13:59:01 |
| Agency: (Calvert County GMRS) was updated | theaton | 2025-11-27 13:58:40 |
| Agency (Businesses [5]) changed to (Calvert County Businesses [5]) | theaton | 2025-11-27 13:58:27 |
| Agency: (Calvert County Businesses) was updated | theaton | 2025-11-27 13:58:27 |
| Agency (Calvert County GMRS) added | theaton | 2025-11-27 13:58:10 |
| Agency: (Calvert County GMRS) was updated | theaton | 2025-11-27 13:58:10 |
| Joint National Capital Region System Updated (Updated 10 talkgroups for National Geospatial-Intelligence Agency) | tknepp32 | 2025-10-24 13:20:48 |
| 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 |
| Joint National Capital Region System Updated (Changed Talkgroup Category: National Geospatial-Intelligence Agency to National Geospatial-Intelligence Agency) | Starcom21 | 2025-09-15 20:28:01 |
| 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 |
| Calvert County System Updated (Updated encryption settings for 1 talkgroups for State of Maryland) | dtscho | 2025-08-20 11:32:29 |
| Calvert County System Updated (Updated encryption settings for 1 talkgroups for Sheriff) | dtscho | 2025-08-20 11:31:45 |
| Exelon Energy P25 System Updated (Added Talkgroup to: Baltimore Gas and Electric (1024 BGE 1024)) | GTR8000 | 2025-06-17 22:01:12 |
| Exelon Energy P25 System Updated (Added Talkgroup to: Baltimore Gas and Electric (1018 BGE 1018)) | GTR8000 | 2025-06-17 22:00:57 |
| Exelon Energy P25 System Updated (Updated 1 talkgroups for Baltimore Gas and Electric) | GTR8000 | 2025-06-17 22:00:41 |
| Exelon Energy P25 System Updated (Added Talkgroup to: Baltimore Gas and Electric (1010 BGE)) | GTR8000 | 2025-06-17 22:00:19 |
| Exelon Energy P25 System Updated (Added Talkgroup Category: Baltimore Gas and Electric) | GTR8000 | 2025-06-17 22:00:00 |
| Added Frequency 451.3125 (Plum Point Elementary School) | dtscho | 2025-06-02 15:23:55 |
| Calvert County System Updated (Updated encryption settings for 2 talkgroups for Fire/Rescue/EMS) | dtscho | 2025-04-07 21:32:42 |
| Frequencies Updated (1) | dtscho | 2025-03-31 05:18:45 |
| Frequencies Updated (1) | dtscho | 2025-03-31 05:18:14 |
| Frequencies Updated (1) | dtscho | 2025-03-31 05:17:26 |
| Frequencies Deleted (3) | dtscho | 2025-03-31 05:15:33 |
| Frequencies Deleted (1) | dtscho | 2025-03-31 05:14:39 |
| Frequencies Deleted (2) | dtscho | 2025-03-31 05:14:28 |
| Frequencies Updated (1) | dtscho | 2025-03-31 05:13:58 |
| Frequencies Updated (1) | dtscho | 2025-03-31 05:12:58 |
| Frequencies Deleted (1) | dtscho | 2025-03-31 05:11:39 |
| Frequencies Deleted (1) | dtscho | 2025-03-31 05:11:07 |
| 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 |
| Exelon Energy P25 System Updated (Changed Site # 022 (Calvert Cliffs Nuclear Power Plant) to 22 (Calvert Cliffs Nuclear Power Plant)) | dtscho | 2025-03-26 20:12:35 |
| Exelon Energy P25 System Updated (Changed Site # 022 (Calvert Cliffs Nuclear Power Plant) to 22 (Calvert Cliffs Nuclear Power Plant)) | dtscho | 2025-03-26 20:11:45 |
| Calvert County System Updated (Updated encryption settings for 1 talkgroups for Sheriff) | dtscho | 2025-03-26 17:22:32 |
| Added Frequency 461.225 (Calvert High School) | dtscho | 2025-02-12 20:40:52 |
| Joint National Capital Region System Updated (Updated encryption settings for 8 talkgroups for Naval District Washington - Police) | GTR8000 | 2024-12-20 02:43:54 |
| Interstate Repeater System System Updated (Updated System Location Details) | theaton | 2024-10-09 15:58:37 |
| 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 |
| 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 |
| Exelon Energy P25 System Updated (Updated System Location Details) | ericcarlson | 2024-04-21 21:07:44 |
| Exelon Energy P25 System Updated (Changed Site # 022 (Calvert Cliffs Nuclear Power Plant) to 22 (Calvert Cliffs Nuclear Power Plant)) | ericcarlson | 2024-04-21 21:05:44 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Added Talkgroup to: Calvert County (7437 Sheriff (Patch from Calvert TRS))) | dtscho | 2024-03-17 19:18:08 |
| First Responders Interoperable Radio System Team (FIRST) System Updated (Added Talkgroup Category: Calvert County) | dtscho | 2024-03-17 19:17:11 |
| Joint National Capital Region System Updated (Updated encryption settings for 1 talkgroups for National Geospatial-Intelligence Agency) | Starcom21 | 2024-03-11 02:34:09 |
| Interstate Repeater System System Updated (Updated 1 talkgroups for C-Bridge) | N9JIG | 2024-02-12 08:34:41 |
| Calvert County System Updated (Added Talkgroup to: Federal Government (10124 US Marshal Service Ops)) | brian86 | 2024-02-11 02:10:38 |
| Calvert County System Updated (Added Talkgroup Category: Federal Government) | brian86 | 2024-02-11 02:09:17 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10123 Warrant Taskforce 2)) | brian86 | 2024-02-11 02:02:33 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10122 Warrant Taskforce 1)) | brian86 | 2024-02-11 02:02:08 |
| Calvert County System Updated (Updated encryption settings for 1 talkgroups for Sheriff) | brian86 | 2024-02-11 02:00:24 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10121 Vice / Narcotics 2)) | brian86 | 2024-02-11 02:00:04 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10120 Vice / Narcotics 1)) | brian86 | 2024-02-11 01:59:21 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10119 Special Ops Team 3)) | brian86 | 2024-02-11 01:57:33 |
| Calvert County System Updated (Updated 1 talkgroups for Sheriff) | brian86 | 2024-02-11 01:56:32 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10118 Special Ops Team 2)) | brian86 | 2024-02-11 01:56:08 |
| Calvert County System Updated (Updated 12 talkgroups for Sheriff) | brian86 | 2024-02-11 01:54:54 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10117 Special Ops Team 1)) | brian86 | 2024-02-11 01:54:12 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10116 SOT 1)) | brian86 | 2024-02-11 01:51:57 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10114 Court Security)) | brian86 | 2024-02-11 01:48:11 |
| Calvert County System Updated (Updated encryption settings for 1 talkgroups for Sheriff) | brian86 | 2024-02-11 01:45:03 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10112 Jail)) | brian86 | 2024-02-11 01:44:47 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10106 Training 1)) | brian86 | 2024-02-11 01:42:46 |
| Calvert County System Updated (Added Talkgroup to: Sheriff (10105 Tac 4)) | brian86 | 2024-02-11 01:41:45 |
| Calvert County System Updated (Changed Talkgroup Category: Charles to Charles County) | brian86 | 2024-02-11 01:38:58 |
| Calvert County System Updated (Updated encryption settings for 3 talkgroups for Fire/Rescue/EMS) | brian86 | 2024-02-11 01:23:33 |
| Calvert County System Updated (Updated 3 talkgroups for Fire/Rescue/EMS) | brian86 | 2024-02-11 01:22:42 |
| Interstate Repeater System System Updated (Changed Talkgroup Category: C-Bridge to C-Bridge) | W2SJW | 2023-12-29 03:20:41 |
| Interstate Repeater System System Updated (Changed Talkgroup Category: C-Bridge to C-Bridge) | W2SJW | 2023-12-29 03:17:31 |
| Interstate Repeater System System Updated (Changed Talkgroup Category: Northeast PA Specific to Northeast PA Specific) | W2SJW | 2023-12-29 03:12:23 |
| Interstate Repeater System System Updated (Changed Talkgroup Category: BrandMeister to BrandMeister) | W2SJW | 2023-12-29 03:11:11 |
| Interstate Repeater System System Updated (Imported talkgroups (8 Added, 1 Updated) for C-Bridge) | theaton | 2023-12-28 15:16:38 |
| Interstate Repeater System System Updated (Imported talkgroups (35 Added, 0 Updated) for BrandMeister) | theaton | 2023-12-28 15:12:07 |
| Interstate Repeater System System Updated (Imported talkgroups (2 Added, 0 Updated) for C-Bridge) | theaton | 2023-12-28 15:02:36 |
| Interstate Repeater System System Updated (Updated 1 talkgroups for C-Bridge) | theaton | 2023-12-28 15:00:51 |
| Interstate Repeater System System Updated (Added Talkgroup to: C-Bridge (315120 DC Regional)) | theaton | 2023-12-28 14:58:45 |
| Interstate Repeater System System Updated (Added Talkgroup to: BrandMeister (31343 Brandmeister NJ Tac)) | theaton | 2023-12-28 14:57:19 |
| Interstate Repeater System System Updated (Updated 1 talkgroups for C-Bridge) | theaton | 2023-12-28 14:55:36 |
| Interstate Repeater System System Updated (Added Talkgroup to: C-Bridge (8804 Pack Rats)) | theaton | 2023-12-28 14:55:11 |
| Interstate Repeater System System Updated (Imported talkgroups (2 Added, 0 Updated) for BrandMeister) | theaton | 2023-12-28 14:46:09 |
| Interstate Repeater System System Updated (Added Talkgroup to: BrandMeister (91 Brandmeister Worldwide)) | theaton | 2023-12-28 14:42:57 |
| DMR-MARC Amateur Radio Network (MD) System Updated (Changed Site # 001 (Sunderland ) to 1 (Sunderland )) | ericcarlson | 2023-10-22 20:18:27 |
| Frequencies Deleted (1) | dtscho | 2023-10-16 15:23:36 |
