| Rice University System Updated (Updated 1 talkgroups for Emergency Management) | ericcarlson | 2026-05-14 19:16:18 |
| Rice University System Updated (Updated 1 talkgroups for Emergency Management) | ericcarlson | 2026-05-14 19:16:05 |
| Rice University System Updated (Added Talkgroup to: Emergency Management (122 Incident Management Team (IMT) 1)) | ericcarlson | 2026-05-14 19:16:01 |
| Atascocita Volunteer Fire Department System Updated (Changed Site # 001 (Confirmed LCN) to 1 (Confirmed LCN)) | ericcarlson | 2026-05-09 00:55:30 |
| Houston Open 2026/The Chevron Championship 2026 System Updated (Updated General System Details) | ericcarlson | 2026-05-07 00:34:20 |
| Houston Methodist Clear Lake Hospital System Updated (Added Talkgroup to: All (10 Security)) | ericcarlson | 2026-04-22 14:35:22 |
| Houston Methodist Clear Lake Hospital System Updated (Added Talkgroup Category: All) | ericcarlson | 2026-04-22 14:35:05 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:42:34 |
| Added Frequency 146.82 (K5GZR) | ericcarlson | 2026-04-20 20:42:19 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:39:42 |
| Frequencies Updated (2) | ericcarlson | 2026-04-20 20:37:59 |
| Migrated 1 Frequencies to Amateur Radio/2m (144 MHz) Frequencies | ericcarlson | 2026-04-20 20:37:31 |
| Deleted Subcategory: (Amateur Radio/Severe Weather) | ericcarlson | 2026-04-20 20:37:05 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:35:31 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:35:15 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:34:51 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:34:16 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:32:16 |
| Frequencies Updated (2) | ericcarlson | 2026-04-20 20:31:13 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 20:30:40 |
| Houston Methodist Clear Lake Hospital System Updated (Changed Site # 001 (Nassau Bay) to 1 (Nassau Bay)) | ericcarlson | 2026-04-20 15:55:38 |
| Updated Subcategory: (Friendswood) | ericcarlson | 2026-04-20 03:18:48 |
| Updated Subcategory: (Galena Park) | ericcarlson | 2026-04-20 03:18:30 |
| Added related trunked system (Texas Wide Area Radio Network (TxWARN)) to subcategory: (Galena Park) | ericcarlson | 2026-04-20 03:18:28 |
| Frequencies Updated (1) | ericcarlson | 2026-04-20 03:17:40 |
| Frequencies Updated (2) | ericcarlson | 2026-04-19 20:42:41 |
| Frequencies Updated (1) | ericcarlson | 2026-04-19 20:40:35 |
| Frequencies Updated (1) | ericcarlson | 2026-04-19 20:40:03 |
| Frequencies Updated (1) | ericcarlson | 2026-04-19 20:38:47 |
| Frequencies Updated (2) | ericcarlson | 2026-04-19 19:56:13 |
| Frequencies Updated (2) | ericcarlson | 2026-04-18 21:45:31 |
| Added Frequency 444.5 (Houston) | ericcarlson | 2026-04-18 21:44:30 |
| Added Frequency 444.4 (Houston - Texas Medical Center) | ericcarlson | 2026-04-18 21:43:57 |
| Added Frequency 444.025 (Houston) | ericcarlson | 2026-04-18 21:43:09 |
| Added Frequency 444 (Houston) | ericcarlson | 2026-04-18 21:42:35 |
| Added Frequency 443.925 (Houston - Texas Medical Center) | ericcarlson | 2026-04-18 21:42:01 |
| Frequencies Updated (2) | ericcarlson | 2026-04-18 21:40:37 |
| Frequencies Updated (5) | ericcarlson | 2026-04-18 21:40:13 |
| Updated Subcategory: (70cm (440 MHz) Frequencies) | ericcarlson | 2026-04-18 21:37:18 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:36:03 |
| Frequencies Updated (4) | ericcarlson | 2026-04-18 21:35:24 |
| Added Frequency 145.23 (Houston Northwest (wide area)) | ericcarlson | 2026-04-18 21:34:24 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:33:24 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:32:59 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:32:42 |
| Updated Subcategory: (2m (144 MHz) Frequencies) | ericcarlson | 2026-04-18 21:31:32 |
| Frequencies Updated (9) | ericcarlson | 2026-04-18 21:31:27 |
| Frequencies Deleted (2) | ericcarlson | 2026-04-18 21:25:06 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:24:45 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:24:27 |
| Added Frequency 145.37 (Houston Transtar - Emergency Management) | ericcarlson | 2026-04-18 21:24:01 |
| Added Frequency 147.1 (Houston Transtar) | ericcarlson | 2026-04-18 21:21:52 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:21:19 |
| Migrated 2 Frequencies to Amateur Radio/2m (144 MHz) Frequencies | ericcarlson | 2026-04-18 21:20:17 |
| Frequencies Updated (2) | ericcarlson | 2026-04-18 21:20:03 |
| Frequencies Updated (2) | ericcarlson | 2026-04-18 21:19:16 |
| Frequencies Updated (1) | ericcarlson | 2026-04-18 21:18:14 |
| Added Frequency 443.725 (Cross Roads Link System - Houston) | ericcarlson | 2026-04-18 21:17:57 |
| Added Frequency 146 (Cross Roads Link System - Downtown Houston) | ericcarlson | 2026-04-18 21:17:15 |
| Occidental Petroleum Corporation System Updated (Updated 3 Sites) | kurtswaney | 2026-04-16 08:14:41 |
| Occidental Petroleum Corporation System Updated (Updated 10 Sites) | kurtswaney | 2026-04-16 08:13:09 |
| Frequencies Deleted (1) | ericcarlson | 2026-04-15 20:20:06 |
| Frequencies Updated (2) | ericcarlson | 2026-04-15 20:19:35 |
| Frequencies Updated (2) | ericcarlson | 2026-04-15 20:19:02 |
| Frequencies Updated (1) | ericcarlson | 2026-04-15 20:18:45 |
| Frequencies Imported (1) | ericcarlson | 2026-04-15 20:18:37 |
| Updated Subcategory: (University of Houston - Downtown) | ericcarlson | 2026-04-15 20:16:46 |
| Updated Subcategory: (University of Houston - Clear Lake) | ericcarlson | 2026-04-15 20:16:37 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Updated 3 talkgroups for Johnson Space Center) | ericcarlson | 2026-04-13 15:27:43 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Imported talkgroups (3 Added, 0 Updated) for Johnson Space Center) | ericcarlson | 2026-04-13 15:27:29 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Added Talkgroup Category: Johnson Space Center) | ericcarlson | 2026-04-13 15:26:48 |
| Agency: (Federal) was updated | ericcarlson | 2026-04-11 21:44:23 |
| Updated related trunked system (Texas Wide Area Radio Network (TxWARN)) for subcategory: (National Aeronautics and Space Administration) | ericcarlson | 2026-04-11 21:44:21 |
| Deleted related trunked system (Johnson Space Center) from subcategory: (National Aeronautics and Space Administration) | ericcarlson | 2026-04-11 21:43:29 |
| Agency: (Miscellaneous) was updated | ericcarlson | 2026-04-11 18:14:43 |
| Dow Chemical Deer Park System Updated (Updated System Description Text) | ericcarlson | 2026-04-11 17:48:59 |
| Houston Methodist Clear Lake Hospital System Updated (Updated General System Details) | ericcarlson | 2026-04-11 17:43:33 |
| Dow Chemical Deer Park System Updated (Updated General System Details) | ericcarlson | 2026-04-11 17:40:40 |
| Rohm and Haas System Updated (Changed Site # 001 (Site 1) to 1 (Site 1)) | ericcarlson | 2026-04-11 17:40:26 |
| Rohm and Haas System Updated (Changed Site # 001 (Site 1) to 1 (Site 1)) | ericcarlson | 2026-04-11 17:40:25 |
| Equistar Chemical (Channelview) System Updated (Updated General System Details) | ericcarlson | 2026-04-11 17:37:53 |
| ExxonMobil Corporation System Updated (Changed Site # 013 (Baytown, TX) to 13 (Baytown, TX)) | ericcarlson | 2026-04-11 17:35:55 |
| Dow Chemical Deer Park System Updated (Updated General System Details) | ericcarlson | 2026-04-11 17:33:12 |
| Agency: (Industry) was updated | ericcarlson | 2026-04-11 17:26:56 |
| Added related trunked system (ExxonMobil Corporation) to subcategory: (Chemical Plants) | ericcarlson | 2026-04-11 17:26:54 |
| Agency: (Industry) was updated | ericcarlson | 2026-04-11 17:25:59 |
| Agency: (Industry) was updated | ericcarlson | 2026-04-11 17:25:39 |
| Spring Independent School District System Updated (Changed Site # 001 (Confirmed LCN) to 1 (Confirmed LCN)) | ericcarlson | 2026-04-11 17:12:25 |
| Shell Chemical Deer Park (Tier 3) System Updated (Changed Site # 001 (Deer Park) to 1 (Deer Park)) | ericcarlson | 2026-04-09 18:42:42 |
| Shell Chemical Deer Park (Tier 3) System Updated (Updated General System Details) | ericcarlson | 2026-04-09 15:24:12 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Updated 1 talkgroups for Harris County Toll Road Authority) | ericcarlson | 2026-04-08 19:41:20 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Updated mode assignments for 13 talkgroups for Harris County Constables) | ericcarlson | 2026-04-08 19:40:24 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Updated 5 talkgroups for Harris County Sheriff) | ericcarlson | 2026-04-08 19:39:18 |
| Texas Wide Area Radio Network (TxWARN) System Updated (Updated 1 talkgroups for Metropolitan Transit Authority of Harris County) | ericcarlson | 2026-04-08 19:38:04 |
| Agency: (Office Buildings) was updated | ericcarlson | 2026-04-07 20:28:51 |
| Chase Tower and 601 Travis System Updated (Added Talkgroup to: All (255 All Call)) | ericcarlson | 2026-04-05 15:51:23 |
| Spring Branch Independent School District System Updated (Changed Site # 001 (Confirmed LCN) to 1 (Confirmed LCN)) | ericcarlson | 2026-04-01 18:21:03 |
| Frequencies Updated (4) | ericcarlson | 2026-03-31 17:49:26 |
| Frequencies Imported (2) | ericcarlson | 2026-03-31 17:49:01 |
| Agency: (Office Buildings) was updated | ericcarlson | 2026-03-31 15:29:30 |
