Universal Licensing System
WRMB538
THURSTON 9-1-1 COMMUNICATIONS
License details
| ULS identifier | 4423122 |
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| Call sign | WRMB538 |
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| Radio service | MW |
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| Status | A |
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| Grant date | 2021-03-16 |
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| Expiration | 2031-03-16 |
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| Frequency range | 17845 - 17905 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | Olympia, THURSTON, WA |
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| Coordinates | 47.0432778, -122.8779167 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:19 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FXO | 17845.00000000 | | | | | |
| 1 | 2 | FXO | 17845.00000000 | | | | | |
| 1 | 2 | FXO | 17845.00000000 | | | | | |
| 1 | 2 | FXO | 17845.00000000 | | | | | |
| 1 | 1 | FXO | 17905.00000000 | | | | | |
| 1 | 1 | FXO | 17905.00000000 | | | | | |
| 1 | 1 | FXO | 17905.00000000 | | | | | |
| 1 | 1 | FXO | 17905.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 17845.00000000 | | 30M0D7W |
| 1 | 2 | 17845.00000000 | | 30M0D7W |
| 1 | 2 | 17845.00000000 | | 30M0D7W |
| 1 | 2 | 17845.00000000 | | 30M0D7W |
| 1 | 1 | 17905.00000000 | | 30M0D7W |
| 1 | 1 | 17905.00000000 | | 30M0D7W |
| 1 | 1 | 17905.00000000 | | 30M0D7W |
| 1 | 1 | 17905.00000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 707 Fir Street (SE05016C), Olympia, THURSTON, WA | 47.04327778, -122.87791667 | 67.400 m | TANK | 50.600 m structure / 50.600 m overall | |
| 2 | R | | 47.03694444, -122.89888889 | 29.000 m | | | |
| 3 | R | | 47.04341667, -122.86458333 | 51.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RFS SC2-190B | | V | 39.0000 | 246.2000 | | |
| 1 | 2 | R | RFS SC2-190B | | | 39.0000 | 0.0000 | | |
| 1 | 3 | R | RFS SC2-190B | | | 39.0000 | 0.0000 | | |
| 2 | 1 | T | RFS SC2-190B | | V | 39.0000 | 89.1000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2022-09-03 | WRMB538 | PLAUPR |
| 2022-06-22 | WRMB538 | LETCNS |
| 2021-04-13 | WRMB538 | LIAUA |
| 2021-03-16 | WRMB538 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4423122 | 2026-08-02 02:48:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMB538 | ULS 4423122 | 2026-08-02 02:48:19 |
| Status | A | ULS 4423122 | 2026-08-02 02:48:19 |
| Service | MW | ULS 4423122 | 2026-08-02 02:48:19 |
| Grant Date | 2021-03-16 | ULS 4423122 | 2026-08-02 02:48:19 |
| Expiration Date | 2031-03-16 | ULS 4423122 | 2026-08-02 02:48:19 |