Universal Licensing System
WRBY543
CONTRA COSTA ALTERNATIVE SCHOOL DBA HOLDEN HIGH SCHOOL
License details
| ULS identifier | 4068614 |
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| Call sign | WRBY543 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2018-07-25 |
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| Expiration | 2028-07-25 |
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| Frequency range | 462.925 - 465 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | ORINDA, CONTRA COSTA, CA |
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| Coordinates | 37.8855556, -122.1894444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:12 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 462.92500000 | | | 10.000000 | 10.000000 | |
| 1 | 2 | FB | 465.00000000 | | | 10.000000 | 10.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 462.92500000 | | 11K2F1D |
| 1 | 2 | 465.00000000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 10 IRWIN WAY, ORINDA, CONTRA COSTA, CA | 37.88555556, -122.18944444 | 155.000 m | B | 9.000 m structure / 9.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 4.000 m | | | | 2.000 | |
| 2 | 1 | T | | 4.000 m | | | | 2.000 | |
Control points
| Number | Address | County | Phone |
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| 1 | 10 IRWIN WAY, ORINDA, CA | CONTRA COSTA | 9252540199 |
License history
| Date | File or call sign | Action |
|---|
| 2018-07-25 | WRBY543 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4068614 | 2026-08-02 01:22:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRBY543 | ULS 4068614 | 2026-08-02 01:22:12 |
| Status | A | ULS 4068614 | 2026-08-02 01:22:12 |
| Service | IG | ULS 4068614 | 2026-08-02 01:22:12 |
| Grant Date | 2018-07-25 | ULS 4068614 | 2026-08-02 01:22:12 |
| Expiration Date | 2028-07-25 | ULS 4068614 | 2026-08-02 01:22:12 |