Universal Licensing System
WJX4
CALIFORNIA, STATE OF
License details
| ULS identifier | 1979595 |
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| Call sign | WJX4 |
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| Radio service | AA |
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| Status | A |
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| Grant date | 2025-12-30 |
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| Expiration | 2036-03-21 |
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| Frequency range | 122.9 - 123.1 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | PASO ROBLES, SAN LUIS OBISPO, CA |
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| Coordinates | 35.6741389, -120.6382222 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:26 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | SAR | 122.90000000 | | | 20.000000 | | |
| 1 | 1 | SAR | 123.10000000 | | | 20.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 122.90000000 | | 6K00A3E |
| 1 | 1 | 123.10000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | PASO ROBLES MUNICIPAL AIRPORT, PASO ROBLES, SAN LUIS OBISPO, CA | 35.67413889, -120.63822222 | 244.000 m | B | 9.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 14.000 m | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-30 | WJX4 | LIREN |
| 2020-04-28 | WJX4 | LIAUA |
| 2016-01-05 | WJX4 | LIREN |
| 2016-01-04 | WJX4 | ESUAPR |
| 2015-12-28 | WJX4 | LETRES |
| 2015-12-22 | WJX4 | ESURNW |
| 2010-11-09 | WJX4 | LIAUA |
| 2010-11-08 | WJX4 | ESCAPR |
| 2006-01-19 | WJX4 | LIREN |
| 2005-12-26 | WJX4 | LETRES |
| 2001-04-27 | WJX4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1979595 | 2026-08-02 02:08:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WJX4 | ULS 1979595 | 2026-08-02 02:08:26 |
| Status | A | ULS 1979595 | 2026-08-02 02:08:26 |
| Service | AA | ULS 1979595 | 2026-08-02 02:08:26 |
| Grant Date | 2025-12-30 | ULS 1979595 | 2026-08-02 02:08:26 |
| Expiration Date | 2036-03-21 | ULS 1979595 | 2026-08-02 02:08:26 |