Universal Licensing System
WQXZ690
Caltrain
License details
| ULS identifier | 3833612 |
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| Call sign | WQXZ690 |
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| Radio service | MW |
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| Status | A |
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| Grant date | 2026-05-12 |
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| Expiration | 2036-07-25 |
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| Frequency range | 6595 - 6645 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | San Carlos, SAN MATEO, CA |
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| Coordinates | 37.5065556, -122.2619722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:43:39 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 6595.00000000 | | | | | |
| 1 | 2 | FXO | 6645.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6595.00000000 | | 5M00D7W |
| 1 | 2 | 6645.00000000 | | 5M00D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1250 San Carlos Avenue, San Carlos, SAN MATEO, CA | 37.50655556, -122.26197222 | 7.600 m | BPOLE | 10.700 m structure / 12.700 m overall | |
| 2 | R | | 37.68747222, -122.43475000 | 365.800 m | | | |
| 3 | R | | 37.48486111, -121.86677778 | 777.200 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Commscope UHX6-65E RF | | H | 39.5000 | 322.8000 | | |
| 1 | 2 | R | Commscope UHX6-65E LF | | | 39.5000 | 0.0000 | | |
| 1 | 3 | R | Commscope HP6-65H | | | 39.8000 | 0.0000 | | |
| 2 | 1 | T | Commscope HP6-65H | | H | 39.8000 | 93.8000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2026-06-09 | WQXZ690 | LIAUA |
| 2026-05-12 | WQXZ690 | LIREN |
| 2026-05-04 | WQXZ690 | LETRES |
| 2026-04-26 | WQXZ690 | ESURNW |
| 2024-12-13 | WQXZ690 | LIAUA |
| 2024-06-06 | WQXZ690 | LIAUA |
| 2019-04-11 | WQXZ690 | LIAUA |
| 2016-11-22 | WQXZ690 | LIAUA |
| 2016-07-25 | WQXZ690 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3833612 | 2026-08-02 02:43:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQXZ690 | ULS 3833612 | 2026-08-02 02:43:39 |
| Status | A | ULS 3833612 | 2026-08-02 02:43:39 |
| Service | MW | ULS 3833612 | 2026-08-02 02:43:39 |
| Grant Date | 2026-05-12 | ULS 3833612 | 2026-08-02 02:43:39 |
| Expiration Date | 2036-07-25 | ULS 3833612 | 2026-08-02 02:43:39 |