Universal Licensing System
WRPP974
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 4564128 |
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| Call sign | WRPP974 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2022-03-04 |
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| Expiration | 2032-03-04 |
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| Frequency range | 453.0625 - 458.8875 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | CONCORD, CONTRA COSTA, CA |
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| Coordinates | 37.9752778, -122.0488889 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-16 06:41:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 453.06250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 453.11250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 453.88750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 453.93750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 458.88750000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.06250000 | | 11K2F3E |
| 1 | 1 | 453.11250000 | | 11K2F3E |
| 1 | 1 | 453.88750000 | | 11K2F3E |
| 1 | 1 | 453.93750000 | | 11K2F3E |
| 1 | 1 | 458.88750000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CONCORD, CONTRA COSTA, CA | 37.97527778, -122.04888889 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 30 DOUGLAS DRIVE, MARTINEZ, CA | CONTRA COSTA | 9253131305 |
License history
| Date | File or call sign | Action |
|---|
| 2023-07-25 | WRPP974 | FRATRE |
| 2023-04-12 | WRPP974 | PNLISR |
| 2023-04-12 | WRPP974 | LETTRS |
| 2022-12-06 | WRPP974 | LETCNS |
| 2022-03-04 | WRPP974 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4564128 | 2026-08-16 06:41:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRPP974 | ULS 4564128 | 2026-08-16 06:41:20 |
| Status | A | ULS 4564128 | 2026-08-16 06:41:20 |
| Service | PW | ULS 4564128 | 2026-08-16 06:41:20 |
| Grant Date | 2022-03-04 | ULS 4564128 | 2026-08-16 06:41:20 |
| Expiration Date | 2032-03-04 | ULS 4564128 | 2026-08-16 06:41:20 |