| Frequencies Deleted (1) | Ronaldski | 2025-01-20 19:50:07 |
| Frequencies Updated (1) | Ronaldski | 2025-01-20 19:48:34 |
| Deleted Subcategory: (Electric/Cloverland Electric Cooperative) | Ronaldski | 2024-09-04 20:26:46 |
| Added related trunked system (Michigan's Public Safety Communications System (MPSCS)) to subcategory: (Consumers Energy Company) | Ronaldski | 2024-09-04 14:39:14 |
| Added Frequency 153.71 (Dispatch Center - Dafter) | Ronaldski | 2024-04-03 20:40:53 |
| Frequencies Updated (Updated: 1, Deleted 0) for Electric | Ronaldski | 2021-01-03 04:57:53 |
| Tagged 1 Frequencies with (Utilities) | Ronaldski | 2021-01-01 17:19:43 |
| Frequencies Updated (Updated: 2, Deleted 0) for Electric | Ronaldski | 2021-01-01 17:19:29 |
| Changed Subcategory Details For: AT and T | Ronaldski | 2020-02-16 05:31:17 |
| Frequencies Updated (Updated: 9, Deleted 0) for Telecommunications | Ronaldski | 2020-02-16 05:30:50 |
| Changed Subcategory Details For: Michigan Bell Telephone Company (AT and T) | Ronaldski | 2018-05-23 02:42:52 |
| Changed Subcategory Details For: Michigan Bell Telephone Company (AT and T) | Thunderbolt | 2018-05-22 15:52:21 |
| Changed Subcategory Details For: Michigan Bell Telephone Company (AT and T) | Ronaldski | 2018-05-09 01:57:40 |
| Changed Subcategory Details For: Wisconsin Energy (U.P.) | Ronaldski | 2017-03-01 20:37:16 |
| Frequencies Updated (Updated: 1, Deleted 0) for Electric | Starcom21 | 2016-09-02 21:51:46 |
| Tagged 1 Frequencies with (Utilities) | Starcom21 | 2016-09-02 21:51:46 |
| Frequencies Updated (Updated: 2, Deleted 0) for Electric | Ronaldski | 2016-05-29 13:54:32 |
| Frequencies Updated (Updated: 2, Deleted 0) for Electric | Ronaldski | 2016-05-29 13:54:04 |
| Sort order changed to from 0 for subcat: Consumers Energy Company | Thunderbolt | 2014-11-25 16:43:45 |
| Frequencies Updated (Updated: 1, Deleted 0) for Electric | Thunderbolt | 2014-11-25 16:43:45 |
| Changed Subcategory Details For: Consumers Energy Company | Thunderbolt | 2014-11-25 16:42:46 |
| Sort order changed to from 0 for subcat: Consumers Energy Company | Thunderbolt | 2014-11-25 16:42:15 |
| Tagged 6 Frequencies with (Utilities) | Thunderbolt | 2014-11-25 16:42:15 |
| Sort order changed to from 0 for subcat: Consumers Energy Company | Thunderbolt | 2014-11-25 16:42:09 |
| Frequencies Updated (Updated: 6, Deleted 0) for Electric | Thunderbolt | 2014-11-25 16:42:09 |
| 6 Frequencies imported | Thunderbolt | 2014-11-25 16:39:57 |
| Changed Subcategory Details For: Consumers Energy Company | Thunderbolt | 2014-11-25 16:38:55 |
| Sort order changed to from 0 for subcat: Panhandle Eastern Pipe Line | Thunderbolt | 2014-11-25 05:38:27 |
| Frequencies Updated (Updated: 0, Deleted 1) for Natural Gas | Thunderbolt | 2014-11-25 05:38:27 |
| Sort order changed to from 0 for subcat: Northern Natural Gas Company | Thunderbolt | 2014-11-25 05:37:57 |
| Sort order changed to from 0 for subcat: Northern Natural Gas Company | Thunderbolt | 2014-11-25 05:37:55 |
| Tagged 1 Frequencies with (Utilities) | Thunderbolt | 2014-11-25 05:37:55 |
| Sort order changed to from 0 for subcat: Northern Natural Gas Company | Thunderbolt | 2014-11-25 05:37:48 |
| Frequencies Updated (Updated: 1, Deleted 0) for Natural Gas | Thunderbolt | 2014-11-25 05:37:48 |
| 1 Frequencies imported | Thunderbolt | 2014-11-25 05:37:02 |
| 1 Frequencies imported | Thunderbolt | 2014-11-25 05:36:36 |
| Added Subcategory: Northern Natural Gas Company | Thunderbolt | 2014-11-25 05:36:15 |
| Sort order changed to from 0 for subcat: Panhandle Eastern Pipe Line | Thunderbolt | 2014-11-25 05:35:28 |
| Tagged 1 Frequencies with (Utilities) | Thunderbolt | 2014-11-25 05:35:28 |
| Sort order changed to from 0 for subcat: Panhandle Eastern Pipe Line | Thunderbolt | 2014-11-25 05:33:25 |
| Frequencies Updated (Updated: 1, Deleted 0) for Natural Gas | Thunderbolt | 2014-11-25 05:33:25 |
| 1 Frequencies imported | Thunderbolt | 2014-11-25 05:32:37 |
| Added Subcategory: Panhandle Eastern Pipe Line | Thunderbolt | 2014-11-25 03:58:33 |
| Changed Subcategory Details For: DTE Energy: Lower Peninsula | Thunderbolt | 2014-11-25 03:57:58 |
| Changed Subcategory Details For: DTE Energy: Upper Peninsula | Thunderbolt | 2014-11-25 03:57:43 |
| Changed Subcategory Details For: DTE Energy: Lower Michigan | Thunderbolt | 2014-11-25 03:57:18 |
| Changed category from (Michigan Consolidated Gas Company DBA Michcon 20) to (Natural Gas 20) | Thunderbolt | 2014-11-25 03:57:02 |
| Sort order changed to from 0 for subcat: Sunoco Pipe Line | Thunderbolt | 2014-11-25 03:52:56 |
| Tagged 1 Frequencies with (Business) | Thunderbolt | 2014-11-25 03:52:56 |
| Sort order changed to from 0 for subcat: Sunoco Pipe Line | Thunderbolt | 2014-11-25 03:52:36 |
| Frequencies Updated (Updated: 1, Deleted 0) for Petroleum | Thunderbolt | 2014-11-25 03:52:36 |
| 1 Frequencies imported | Thunderbolt | 2014-11-25 03:51:44 |
| Added Subcategory: Sunoco Pipe Line | Thunderbolt | 2014-11-25 03:51:23 |
| Changed category from (Telecommunications 30) to (Telecommunications 40) | Thunderbolt | 2014-11-25 03:50:48 |
| Added category (Petroleum 30) | Thunderbolt | 2014-11-25 03:50:38 |
| Changed Subcategory Details For: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:49:09 |
| Sort order changed to from 0 for subcat: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:43:56 |
| Frequencies Updated (Updated: 9, Deleted 0) for Telecommunications | Thunderbolt | 2014-11-25 03:43:56 |
| Sort order changed to from 0 for subcat: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:41:49 |
| Tagged 9 Frequencies with (Utilities) | Thunderbolt | 2014-11-25 03:41:49 |
| Sort order changed to from 0 for subcat: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:41:43 |
| Frequencies Updated (Updated: 1, Deleted 0) for Telecommunications | Thunderbolt | 2014-11-25 03:41:43 |
| 1 Frequencies imported | Thunderbolt | 2014-11-25 03:41:12 |
| Sort order changed to from 0 for subcat: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:39:28 |
| Frequencies Updated (Updated: 8, Deleted 0) for Telecommunications | Thunderbolt | 2014-11-25 03:39:28 |
| 8 Frequencies imported | Thunderbolt | 2014-11-25 03:38:11 |
| Changed Subcategory Details For: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:36:09 |
| Added Subcategory: Michigan Bell Telephone Company (AT&T) | Thunderbolt | 2014-11-25 03:34:27 |
| Changed category from (Michigan Consolidated Gas Company DBA Michcon 99) to (Michigan Consolidated Gas Company DBA Michcon 20) | Thunderbolt | 2014-11-25 03:34:01 |
| Changed category from (Telecommunications 99) to (Telecommunications 30) | Thunderbolt | 2014-11-25 03:33:49 |
| Added category (Telecommunications 99) | Thunderbolt | 2014-11-25 03:33:27 |
| Changed category from (Electric 99) to (Electric 10) | Thunderbolt | 2014-11-25 03:33:08 |
| Sort order changed to from 0 for subcat: Wisconsin Energy (U.P.) | W2GLD | 2013-11-16 05:30:18 |
| Frequencies Updated (Updated: 0, Deleted 7) for Electric | W2GLD | 2013-11-16 05:30:18 |
| Changed Subcategory Details For: Wisconsin Energy (U.P.) | W2GLD | 2013-11-16 05:28:14 |
| Sort order changed to from 0 for subcat: Lower Michigan | W2GLD | 2013-11-16 05:26:46 |
| Frequencies Updated (Updated: 1, Deleted 0) for Michigan Consolidated Gas Company DBA Michcon | W2GLD | 2013-11-16 05:26:46 |
| Sort order changed to from 0 for subcat: U.P. | W2GLD | 2013-11-16 05:26:20 |
| Frequencies Updated (Updated: 1, Deleted 0) for Michigan Consolidated Gas Company DBA Michcon | W2GLD | 2013-11-16 05:26:20 |
| Frequencies Updated (Updated: 0, Deleted 1) for Michigan Consolidated Gas Company DBA Michcon | W2GLD | 2013-11-16 05:25:57 |
| Sort order changed to from 0 for subcat: U.P. | W2GLD | 2013-11-16 05:25:56 |
| Category (Telephone Companies) deleted | W2GLD | 2013-11-16 05:25:32 |
| Subcategory (Michigan Bell Telephone Company) deleted | W2GLD | 2013-11-16 05:25:21 |
| Subcategory (Wolverine Power Suppy Electric Cooperative) deleted | W2GLD | 2013-11-16 05:25:00 |
| Subcategory (Tri-County Electric Cooperative) deleted | W2GLD | 2013-11-16 05:24:47 |
| Changed Subcategory Details For: Wolverine Power Suppy Electric Cooperative | W2GLD | 2013-11-16 05:23:17 |
| Changed Subcategory Details For: Edison Sault Electric Company (U.P.) | W2GLD | 2013-11-16 05:22:46 |
| Changed Subcategory Details For: Consumers Energy Company | W2GLD | 2013-11-16 05:22:28 |
| General text description deleted | W2GLD | 2013-11-16 05:21:11 |
| Changed Subcategory Details For: Tri-County Electric Cooperative | Starcom21 | 2012-10-11 21:38:51 |
| General text description updated | Starcom21 | 2012-10-02 06:06:46 |
| Changed Subcategory Details For: Tri-County Electric Cooperative | Starcom21 | 2011-12-09 03:38:22 |
| Added Subcategory: Tri-County Electric Cooperative | Starcom21 | 2011-12-09 03:37:23 |
| Changed Subcategory Details For: Consumers Energy Company | Starcom21 | 2011-12-09 02:18:52 |
| Changed Subcategory Details For: Cloverland Electric Cooperative | Starcom21 | 2011-12-09 02:17:00 |
| Added Frequency 451.67500 (Tone Carrier (Holland-Ottawa)) | Starcom21 | 2010-12-19 13:50:37 |
| Added Frequency 451.675 (Data (Kalamazoo)) | Starcom21 | 2010-09-24 20:07:18 |
| Added Frequency 451.675 (Data (Holland-OTTAWA)) | Starcom21 | 2010-09-24 20:05:55 |
| Subcategory (Enbridge Energy) added to (Electric) Category | Starcom21 | 2010-09-24 19:58:44 |
| Subcategory (Semco Energy) added to (Electric) Category | Starcom21 | 2010-09-24 19:58:19 |
