Universal Licensing System
WQDY506
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 2766713 |
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| Call sign | WQDY506 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2025-09-03 |
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| Expiration | 2035-11-30 |
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| Frequency range | 37.12 MHz |
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| Locations | 4 |
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| Representative location | MARTINEZ, CONTRA COSTA, CA |
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| Coordinates | 38.0313056, -122.0740556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:08:36 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 37.12000000 | | | 60.000000 | 60.000000 | |
| 2 | 1 | FB | 37.12000000 | | | 60.000000 | 60.000000 | |
| 3 | 1 | FB | 37.12000000 | | | 60.000000 | 60.000000 | |
| 4 | 1 | FB | 37.12000000 | | | 60.000000 | 60.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 37.12000000 | | 12K5F9W |
| 2 | 1 | 37.12000000 | | 12K5F9W |
| 3 | 1 | 37.12000000 | | 12K5F9W |
| 4 | 1 | 37.12000000 | | 12K5F9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 150 SOLANO ROAD, MARTINEZ, CONTRA COSTA, CA | 38.03130556, -122.07405556 | 4.000 m | BMAST | 12.200 m structure / 17.300 m overall | |
| 2 | T | 1380 SAN PABLO AVENUE, RODEO, CONTRA COSTA, CA | 38.04586111, -122.25863889 | 3.000 m | BMAST | 9.100 m structure / 14.300 m overall | |
| 3 | T | 1551 BENICIA ROAD, VALLEJO, SOLANO, CA | 38.08491667, -122.20275000 | 37.000 m | TOWER | 24.000 m structure / 24.000 m overall | |
| 4 | T | 850 MARINA BAY PARKWAY, RICHMOND, CONTRA COSTA, CA | 38.01361111, -122.13416667 | 4.000 m | BMAST | 12.200 m structure / 15.400 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 17.300 m | | 1.0000 | 360.0000 | -31.500 | |
| 1 | 2 | | | 14.300 m | | 1.0000 | 360.0000 | -42.500 | |
| 1 | 3 | | | 24.000 m | | 1.0000 | 360.0000 | 3.000 | |
| 1 | 4 | | | 15.400 m | | 1.0000 | 360.0000 | -76.200 | |
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 |
|---|
| 2025-09-03 | WQDY506 | LIREN |
| 2020-07-23 | WQDY506 | LIAUA |
| 2020-05-12 | WQDY506 | LIAUA |
| 2015-09-11 | WQDY506 | LIREN |
| 2015-09-10 | WQDY506 | ESUAPR |
| 2015-09-01 | WQDY506 | ESURNW |
| 2012-06-16 | WQDY506 | LIAUA |
| 2012-06-15 | WQDY506 | ESUAPR |
| 2010-06-23 | WQDY506 | LTSAPR |
| 2010-06-22 | WQDY506 | LIAUA |
| 2010-06-22 | WQDY506 | ESCAPR |
| 2010-06-22 | WQDY506 | EFCAPR |
| 2010-06-21 | WQDY506 | EFUAPR |
| 2010-06-21 | WQDY506 | ESUAPR |
| 2005-11-30 | WQDY506 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2766713 | 2026-08-02 01:08:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WQDY506 | ULS 2766713 | 2026-08-02 01:08:36 |
| Status | A | ULS 2766713 | 2026-08-02 01:08:36 |
| Service | PW | ULS 2766713 | 2026-08-02 01:08:36 |
| Grant Date | 2025-09-03 | ULS 2766713 | 2026-08-02 01:08:36 |
| Expiration Date | 2035-11-30 | ULS 2766713 | 2026-08-02 01:08:36 |