Universal Licensing System
WRTT636
OptimERA Holdings, Inc.
License details
| ULS identifier | 4638943 |
|---|
| Call sign | WRTT636 |
|---|
| Radio service | CL |
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| Status | A |
|---|
| Grant date | 2022-07-22 |
|---|
| Expiration | 2032-07-22 |
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| Frequency range | 835.02 - 893.97 MHz (8 frequencies) |
|---|
| Locations | 1 |
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| Representative location | Akutan, ALEUTIANS EAST, AK |
|---|
| Coordinates | 54.1323889, -165.7893889 |
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| Source archive | l_cell.zip |
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| Dataset refreshed | 2026-08-02 02:07:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | | 835.02000000 | 844.98000000 | | | | |
| 1 | 2 | | 835.02000000 | 844.98000000 | | | | |
| 1 | 3 | | 835.02000000 | 844.98000000 | | | | |
| 1 | 1 | | 846.51000000 | 848.97000000 | | | | |
| 1 | 2 | | 846.51000000 | 848.97000000 | | | | |
| 1 | 3 | | 846.51000000 | 848.97000000 | | | | |
| 1 | 1 | | 880.02000000 | 889.98000000 | | | | |
| 1 | 2 | | 880.02000000 | 889.98000000 | | | | |
| 1 | 3 | | 880.02000000 | 889.98000000 | | | | |
| 1 | 1 | | 891.51000000 | 893.97000000 | | | | |
| 1 | 2 | | 891.51000000 | 893.97000000 | | | | |
| 1 | 3 | | 891.51000000 | 893.97000000 | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | In the Village of Akutan, Akutan, ALEUTIANS EAST, AK | 54.13238889, -165.78938889 | 3.000 m | BTWR | 23.600 m structure / 23.600 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | | | | | | |
| 2 | 1 | | | | | | | | |
| 3 | 1 | | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2023-09-13 | WRTT636 | LIMOD |
| 2023-04-25 | WRTT636 | LETCNS |
| 2022-07-26 | WRTT636 | LIAUA |
| 2022-07-22 | WRTT636 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4638943 | 2026-08-02 02:07:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRTT636 | ULS 4638943 | 2026-08-02 02:07:20 |
| Status | A | ULS 4638943 | 2026-08-02 02:07:20 |
| Service | CL | ULS 4638943 | 2026-08-02 02:07:20 |
| Grant Date | 2022-07-22 | ULS 4638943 | 2026-08-02 02:07:20 |
| Expiration Date | 2032-07-22 | ULS 4638943 | 2026-08-02 02:07:20 |