Universal Licensing System
WPJD431
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 1036093 |
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| Call sign | WPJD431 |
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| Radio service | MW |
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| Status | C |
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| Grant date | 2000-12-16 |
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| Expiration | 2010-12-31 |
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| Cancellation | 2002-11-25 |
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| Frequency range | 21975 MHz |
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| Locations | 2 |
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| Representative location | PINOLE, CONTRA COSTA, CA |
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| Coordinates | 37.9888056, -122.2535556 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:42:28 |
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Licensee
| Name | CONTRA COSTA, COUNTY OF |
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| Applicant type | G |
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| FRN | 0001540145 |
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| Location | MARTINEZ, CA |
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| Address | 30 DOUGLAS DRIVE, MARTINEZ, CA, 945534068 |
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| Phone | 9259577701 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FXO | 21975.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 21975.00000000 | | 25M0F8W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 2.4 MI SE OF PINOLE, PINOLE, CONTRA COSTA, CA | 37.98880556, -122.25355556 | 215.200 m | | 6.100 m overall | |
| 2 | R | | 37.88380556, -122.22188889 | 583.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | H | 40.3000 | 166.6000 | | |
| 1 | 2 | R | | | | 46.3000 | | | |
License history
| Date | File or call sign | Action |
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| 2002-11-26 | WPJD431 | LICAN |
| 2000-12-16 | WPJD431 | LIREN |
| 2000-11-13 | WPJD431 | LETRES |
| 2000-10-29 | WPJD431 | LETRES |
| 2000-03-14 | WPJD431 | LIAUA |
| 1999-08-14 | WPJD431 | LICCNV |
| 1996-01-11 | WPJD431 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1036093 | 2026-08-02 02:42:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPJD431 | ULS 1036093 | 2026-08-02 02:42:28 |
| Status | C | ULS 1036093 | 2026-08-02 02:42:28 |
| Service | MW | ULS 1036093 | 2026-08-02 02:42:28 |
| Grant Date | 2000-12-16 | ULS 1036093 | 2026-08-02 02:42:28 |
| Expiration Date | 2010-12-31 | ULS 1036093 | 2026-08-02 02:42:28 |
| Cancellation Date | 2002-11-25 | ULS 1036093 | 2026-08-02 02:42:28 |