Universal Licensing System
WNSW335
DURHAM SCHOOL SERVICES
License details
| ULS identifier | 1581173 |
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| Call sign | WNSW335 |
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| Radio service | GJ |
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| Status | E |
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| Grant date | 2015-05-21 |
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| Expiration | 2025-07-31 |
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| Cancellation | 2025-12-13 |
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| Frequency range | 811.0875 - 856.0875 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | CONTRA COSTA, CA |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:20:26 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 811.08750000 | | | 35.000000 | 70.000000 | |
| 1 | 1 | FB2 | 856.08750000 | | | 150.000000 | 1000.000000 | |
| 2 | 1 | MO | 856.08750000 | | | 35.000000 | 70.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 811.08750000 | | 20K0F3E |
| 1 | 1 | 856.08750000 | | 20K0F3E |
| 2 | 1 | 856.08750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT DIABLO ST PK, CONCORD, CONTRA COSTA, CA | 37.88158333, -121.91913889 | 1091.000 m | B | 61.000 m structure | N |
| 2 | T | CONTRA COSTA, CA | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 61.000 m | | | | 940.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1025 SHARY CIR, CONCORD, CA | | 9256863391 |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-13 | WNSW335 | LIEXP |
| 2025-07-14 | WNSW335 | LITRAN |
| 2025-05-05 | WNSW335 | LETRES |
| 2015-08-17 | WNSW335 | ESUAPR |
| 2015-05-21 | WNSW335 | LIREN |
| 2015-05-04 | WNSW335 | LETRES |
| 2012-08-13 | WNSW335 | EFUFNR |
| 2012-08-13 | WNSW335 | ESUFNR |
| 2012-08-13 | WNSW335 | EFUAPR |
| 2012-08-13 | WNSW335 | ESUAPR |
| 2012-06-12 | WNSW335 | LIAUA |
| 2012-06-11 | WNSW335 | ESUAPR |
| 2012-05-24 | WNSW335 | ESUFNR |
| 2006-05-31 | WNSW335 | LIMOD |
| 2006-05-24 | WNSW335 | ESUAPR |
| 2006-03-10 | WNSW335 | LIMOD |
| 2006-03-09 | WNSW335 | ESCAPR |
| 2005-06-11 | WNSW335 | LIREN |
| 2005-05-03 | WNSW335 | LETRES |
| 2005-03-10 | WNSW335 | LTSAPR |
| 2005-03-10 | WNSW335 | LIAUA |
| 2000-11-22 | WNSW335 | LICCNV |
| 2000-07-26 | WNSW335 | LIREN |
| 2000-07-26 | WNSW335 | AUTHPR |
| 2000-05-08 | WNSW335 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1581173 | 2026-08-02 01:20:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNSW335 | ULS 1581173 | 2026-08-02 01:20:26 |
| Status | E | ULS 1581173 | 2026-08-02 01:20:26 |
| Service | GJ | ULS 1581173 | 2026-08-02 01:20:26 |
| Grant Date | 2015-05-21 | ULS 1581173 | 2026-08-02 01:20:26 |
| Expiration Date | 2025-07-31 | ULS 1581173 | 2026-08-02 01:20:26 |
| Cancellation Date | 2025-12-13 | ULS 1581173 | 2026-08-02 01:20:26 |