Universal Licensing System
WRWX637
COASTSIDE COUNTY WATER DISTRICT
License details
| ULS identifier | 4750502 |
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| Call sign | WRWX637 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2023-04-10 |
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| Expiration | 2033-04-10 |
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| Frequency range | 173.2625 MHz |
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| Locations | 2 |
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| Representative location | SAN MATEO, SAN MATEO, CA |
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| Coordinates | 37.5067778, -122.3532778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:57 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 173.26250000 | | | 4.000000 | 18.000000 | |
| 2 | 1 | FXO | 173.26250000 | | | 4.000000 | 18.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 173.26250000 | | 5K60F2D |
| 2 | 1 | 173.26250000 | | 5K60F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | UPPER CRYSTAL SPRINGS RESERVOIR OFF HWY 92, SAN MATEO, SAN MATEO, CA | 37.50677778, -122.35327778 | 124.000 m | B | 6.000 m structure / 6.000 m overall | |
| 2 | T | SURGE TANK CAHILL RIDGE RD OFF HWY 92, SAN MATEO, SAN MATEO, CA | 37.52297222, -122.38094444 | 321.000 m | TANK | 6.000 m structure / 6.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | 11.400 | |
| 1 | 2 | T | | 6.000 m | | | | 221.200 | |
Control points
| Number | Address | County | Phone |
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| 1 | 766 MAIN ST, HALF MOON BAY, CA | SAN MATEO | 6507264405 |
License history
| Date | File or call sign | Action |
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| 2023-04-10 | WRWX637 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4750502 | 2026-08-02 01:17:57 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRWX637 | ULS 4750502 | 2026-08-02 01:17:57 |
| Status | A | ULS 4750502 | 2026-08-02 01:17:57 |
| Service | IG | ULS 4750502 | 2026-08-02 01:17:57 |
| Grant Date | 2023-04-10 | ULS 4750502 | 2026-08-02 01:17:57 |
| Expiration Date | 2033-04-10 | ULS 4750502 | 2026-08-02 01:17:57 |