Universal Licensing System
WQWC704
DURHAM SCHOOL SERVICES
License details
| ULS identifier | 3719839 |
|---|
| Call sign | WQWC704 |
|---|
| Radio service | GE |
|---|
| Status | E |
|---|
| Grant date | 2015-07-20 |
|---|
| Expiration | 2025-07-20 |
|---|
| Cancellation | 2025-09-20 |
|---|
| Frequency range | 811.0875 - 856.0875 MHz (2 frequencies) |
|---|
| Locations | 4 |
|---|
| Representative location | OAKLAND, CONTRA COSTA, CA |
|---|
| Coordinates | 37.8469444, -122.1991667 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:20:27 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 811.08750000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 811.08750000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | FB2 | 856.08750000 | | | 150.000000 | 125.000000 | |
| 2 | 1 | MO | 856.08750000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FB2 | 856.08750000 | | | 150.000000 | 125.000000 | |
| 4 | 1 | MO | 856.08750000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 811.08750000 | | 20K0F3E |
| 4 | 1 | 811.08750000 | | 20K0F3E |
| 1 | 1 | 856.08750000 | | 20K0F3E |
| 2 | 1 | 856.08750000 | | 20K0F3E |
| 3 | 1 | 856.08750000 | | 20K0F3E |
| 4 | 1 | 856.08750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 622 DIABLO DR, OAKLAND, CONTRA COSTA, CA | 37.84694444, -122.19916667 | 413.000 m | LTOWER | 32.000 m structure / 34.000 m overall | |
| 2 | T | CONTRA COSTA, CA | | | | | |
| 3 | T | WIEDMANN HILL, SAN RAMON, ALAMEDA, CA | 37.73797222, -121.99466667 | 560.000 m | GTOWER | 6.100 m structure / 8.100 m overall | |
| 4 | T | CONTRA COSTA, CA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 34.000 m | | | | 312.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 8.100 m | | | | 372.100 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1025 SHARY CIR, CONCORD, CA | CONTRA COSTA | 9256863391 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-20 | WQWC704 | LIEXP |
| 2025-07-14 | WQWC704 | LITRAN |
| 2025-04-28 | WQWC704 | LETRES |
| 2016-04-19 | WQWC704 | LETCNS |
| 2015-07-20 | WQWC704 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3719839 | 2026-08-02 01:20:27 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQWC704 | ULS 3719839 | 2026-08-02 01:20:27 |
| Status | E | ULS 3719839 | 2026-08-02 01:20:27 |
| Service | GE | ULS 3719839 | 2026-08-02 01:20:27 |
| Grant Date | 2015-07-20 | ULS 3719839 | 2026-08-02 01:20:27 |
| Expiration Date | 2025-07-20 | ULS 3719839 | 2026-08-02 01:20:27 |
| Cancellation Date | 2025-09-20 | ULS 3719839 | 2026-08-02 01:20:27 |