Universal Licensing System
WRZN721
CABRILLO UNIFIED SCHOOL DISTRICT
License details
| ULS identifier | 4845673 |
|---|
| Call sign | WRZN721 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2023-11-22 |
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| Expiration | 2033-11-22 |
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| Frequency range | 451.2375 - 469.95 MHz (7 frequencies) |
|---|
| Locations | 6 |
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| Representative location | HALF MOON BAY, SAN MATEO, CA |
|---|
| Coordinates | 37.4199444, -122.3238611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:15:52 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 6 | 1 | MO | 451.23750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 451.33750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 451.43750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 451.53750000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | FB | 464.32500000 | | | 35.000000 | 120.000000 | |
| 4 | 1 | MO | 464.32500000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 464.95000000 | | | 90.000000 | 36.000000 | |
| 3 | 1 | MO | 464.95000000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | MO | 469.95000000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | FX1 | 469.95000000 | | | 35.000000 | 250.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 6 | 1 | 451.23750000 | | 11K2F3E |
| 6 | 1 | 451.33750000 | | 11K2F3E |
| 6 | 1 | 451.43750000 | | 11K2F3E |
| 6 | 1 | 451.53750000 | | 11K2F3E |
| 2 | 1 | 464.32500000 | | 11K2F3E |
| 4 | 1 | 464.32500000 | | 11K2F3E |
| 1 | 1 | 464.95000000 | | 11K2F3E |
| 3 | 1 | 464.95000000 | | 11K2F3E |
| 3 | 1 | 469.95000000 | | 11K2F3E |
| 5 | 1 | 469.95000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | KINGS MOUNTAIN SCHOOL, HALF MOON BAY, SAN MATEO, CA | 37.41994444, -122.32386111 | 634.000 m | BANT | 5.000 m structure / 6.000 m overall | |
| 2 | T | 498 KELLY AVENUE, HALF MOON BAY, SAN MATEO, CA | 37.46411111, -122.43358333 | 18.000 m | BANT | 5.000 m structure / 6.000 m overall | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
| 5 | T | CA | | | | | |
| 6 | T | HALF MOON BAY, SAN MATEO, CA | 37.41994444, -122.32386111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | 460.000 | |
| 1 | 2 | T | | 6.000 m | | | | -96.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 498 KELLY AVENUE, HALF MOON BAY, CA | SAN MATEO | 4157127100 |
License history
| Date | File or call sign | Action |
|---|
| 2024-08-27 | WRZN721 | LETCNS |
| 2023-11-22 | WRZN721 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4845673 | 2026-08-02 01:15:52 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRZN721 | ULS 4845673 | 2026-08-02 01:15:52 |
| Status | A | ULS 4845673 | 2026-08-02 01:15:52 |
| Service | IG | ULS 4845673 | 2026-08-02 01:15:52 |
| Grant Date | 2023-11-22 | ULS 4845673 | 2026-08-02 01:15:52 |
| Expiration Date | 2033-11-22 | ULS 4845673 | 2026-08-02 01:15:52 |