Universal Licensing System
WPIR557
CONTRA COSTA, COUNTY OF
License details
| ULS identifier | 1234791 |
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| Call sign | WPIR557 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2025-07-22 |
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| Expiration | 2035-10-16 |
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| Frequency range | 155.04 MHz |
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| Locations | 1 |
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| Representative location | MARTINEZ, CONTRA COSTA, CA |
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| Coordinates | 37.9896389, -122.0877500 |
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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 |
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| 1 | 1 | FB | 155.04000000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 155.04000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 40 GLACIER DR, MARTINEZ, CONTRA COSTA, CA | 37.98963889, -122.08775000 | 52.000 m | TOWER | 43.000 m structure / 43.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 40.000 m | | | | 0.000 | |
Control points
| Number | Address | County | Phone |
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| 1 | 40 GLACIER DR, MARTINEZ, CA | | 9256462441 |
License history
| Date | File or call sign | Action |
|---|
| 2025-07-22 | WPIR557 | LIREN |
| 2025-07-21 | WPIR557 | LETRES |
| 2020-07-23 | WPIR557 | LIAUA |
| 2020-05-08 | WPIR557 | LIAUA |
| 2015-07-21 | WPIR557 | LIREN |
| 2015-07-20 | WPIR557 | LETRES |
| 2015-07-18 | WPIR557 | ESURNW |
| 2013-04-16 | WPIR557 | LIMOD |
| 2013-04-15 | WPIR557 | ESUAPR |
| 2012-06-16 | WPIR557 | LIAUA |
| 2012-06-15 | WPIR557 | ESUAPR |
| 2010-08-13 | WPIR557 | LIMOD |
| 2010-06-22 | WPIR557 | LIAUA |
| 2010-06-22 | WPIR557 | LTSAPR |
| 2010-06-21 | WPIR557 | ESCAPR |
| 2010-06-21 | WPIR557 | EFCAPR |
| 2005-07-20 | WPIR557 | LIREN |
| 2005-07-19 | WPIR557 | ESCAPR |
| 2002-03-16 | WPIR557 | LIAUA |
| 2002-02-19 | WPIR557 | AUDOPR |
| 2000-10-20 | WPIR557 | LICCNV |
| 2000-08-08 | WPIR557 | LIREN |
| 2000-08-08 | WPIR557 | AUTHPR |
| 2000-07-18 | WPIR557 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1234791 | 2026-08-02 01:08:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPIR557 | ULS 1234791 | 2026-08-02 01:08:36 |
| Status | A | ULS 1234791 | 2026-08-02 01:08:36 |
| Service | PW | ULS 1234791 | 2026-08-02 01:08:36 |
| Grant Date | 2025-07-22 | ULS 1234791 | 2026-08-02 01:08:36 |
| Expiration Date | 2035-10-16 | ULS 1234791 | 2026-08-02 01:08:36 |