Universal Licensing System
WRZU684
Northrop Grumman Corporation
License details
| ULS identifier | 4854042 |
|---|
| Call sign | WRZU684 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2023-12-13 |
|---|
| Expiration | 2033-12-13 |
|---|
| Frequency range | 451.3125 - 469.2875 MHz (14 frequencies) |
|---|
| Locations | 6 |
|---|
| Representative location | San Diego, SAN DIEGO, CA |
|---|
| Coordinates | 32.9904167, -117.0777500 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:20:40 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 5 | 1 | MO | 451.31250000 | | | 5.000000 | 5.000000 | |
| 5 | 1 | MO | 451.48750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | FB2 | 451.88750000 | | | 40.000000 | 40.000000 | |
| 4 | 1 | MO | 451.88750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 452.08750000 | | | 5.000000 | 5.000000 | |
| 5 | 1 | MO | 452.16250000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 452.33750000 | | | 5.000000 | 5.000000 | |
| 5 | 1 | MO | 452.81250000 | | | 5.000000 | 5.000000 | |
| 4 | 1 | MO | 456.88750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 457.08750000 | | | 5.000000 | 5.000000 | |
| 5 | 1 | MO | 457.16250000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 457.33750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | MO | 462.42500000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 464.28750000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 464.28750000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 469.28750000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 5 | 1 | 451.31250000 | | 7K60FXE |
| 5 | 1 | 451.48750000 | | 7K60FXE |
| 3 | 1 | 451.88750000 | | 7K60FXE |
| 4 | 1 | 451.88750000 | | 7K60FXE |
| 6 | 1 | 452.08750000 | | 7K60FXE |
| 5 | 1 | 452.16250000 | | 7K60FXE |
| 6 | 1 | 452.33750000 | | 7K60FXE |
| 5 | 1 | 452.81250000 | | 7K60FXE |
| 4 | 1 | 456.88750000 | | 7K60FXE |
| 6 | 1 | 457.08750000 | | 7K60FXE |
| 5 | 1 | 457.16250000 | | 7K60FXE |
| 6 | 1 | 457.33750000 | | 7K60FXE |
| 6 | 1 | 462.42500000 | | 7K60FXE |
| 1 | 1 | 464.28750000 | | 7K60FXE |
| 2 | 1 | 464.28750000 | | 7K60FXE |
| 2 | 1 | 469.28750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 15120 Innovation Drive, San Diego, SAN DIEGO, CA | 32.99041667, -117.07775000 | 243.000 m | BANT | 11.000 m structure / 12.000 m overall | |
| 2 | T | | | | | | |
| 3 | T | 9356 Spectrum Center Boulevard, San Diego, SAN DIEGO, CA | 32.82633333, -117.12886111 | 131.000 m | B | 14.700 m structure / 14.700 m overall | |
| 4 | T | | | | | | |
| 5 | T | San Diego, SAN DIEGO, CA | 32.99041667, -117.07775000 | | | | |
| 6 | T | San Diego, SAN DIEGO, CA | 32.82633333, -117.12886111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 12.000 m | V | | | 35.700 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 14.700 m | V | | | 27.100 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 15120 Innovation Drive, San Diego, CA | SAN DIEGO | 8585923202 |
| 2 | 9356 spectrum Center Boulevard, San Diego, CA | SAN DIEGO | 8585923202 |
License history
| Date | File or call sign | Action |
|---|
| 2024-09-17 | WRZU684 | LETCNS |
| 2023-12-13 | WRZU684 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4854042 | 2026-08-02 01:20:40 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRZU684 | ULS 4854042 | 2026-08-02 01:20:40 |
| Status | A | ULS 4854042 | 2026-08-02 01:20:40 |
| Service | IG | ULS 4854042 | 2026-08-02 01:20:40 |
| Grant Date | 2023-12-13 | ULS 4854042 | 2026-08-02 01:20:40 |
| Expiration Date | 2033-12-13 | ULS 4854042 | 2026-08-02 01:20:40 |