Universal Licensing System
WPK99
UNDERGROUND CONSTRUCTION CO INC
License details
| ULS identifier | 1872261 |
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| Call sign | WPK99 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1998-03-05 |
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| Expiration | 2003-05-04 |
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| Cancellation | 2003-08-03 |
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| Frequency range | 72.78 MHz |
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| Locations | 1 |
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| Representative location | VACAVILLE, SOLANO, CA |
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| Coordinates | 38.4151944, -122.1185833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:40 |
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Licensee
| Name | UNDERGROUND CONSTRUCTION CO INC |
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| Applicant type | C |
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| FRN | 0001545920 |
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| Location | BENICIA, CA |
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| Address | 5145 INDUSTRIAL WAY, BENICIA, CA, 94510 |
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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 | FX2 | 72.78000000 | | | 39.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 72.78000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | MOUNT VACA, VACAVILLE, SOLANO, CA | 38.41519444, -122.11858333 | 859.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 18.000 m | | | | | |
License history
| Date | File or call sign | Action |
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| 2003-08-03 | WPK99 | LIEXP |
| 2003-02-10 | WPK99 | LETRES |
| 2002-04-15 | WPK99 | LETAUS |
| 2000-11-24 | WPK99 | LICCNV |
| 1998-03-05 | WPK99 | LIREN |
| 1998-03-05 | WPK99 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1872261 | 2026-08-02 01:17:40 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPK99 | ULS 1872261 | 2026-08-02 01:17:40 |
| Status | E | ULS 1872261 | 2026-08-02 01:17:40 |
| Service | IG | ULS 1872261 | 2026-08-02 01:17:40 |
| Grant Date | 1998-03-05 | ULS 1872261 | 2026-08-02 01:17:40 |
| Expiration Date | 2003-05-04 | ULS 1872261 | 2026-08-02 01:17:40 |
| Cancellation Date | 2003-08-03 | ULS 1872261 | 2026-08-02 01:17:40 |