Universal Licensing System
WSIU421
Coronado Unified School District
License details
| ULS identifier | 5153636 |
|---|
| Call sign | WSIU421 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2025-06-21 |
|---|
| Expiration | 2035-06-21 |
|---|
| Frequency range | 451.8875 - 469.1625 MHz (18 frequencies) |
|---|
| Locations | 9 |
|---|
| Representative location | CORONADO, SAN DIEGO, CA |
|---|
| Coordinates | 32.6918889, -117.1783611 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:24:15 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | MO | 451.88750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 451.93750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 451.96250000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 452.08750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 452.27500000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 452.33750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 456.88750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 456.96250000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 457.08750000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 457.33750000 | | | 5.000000 | 5.000000 | |
| 6 | 1 | FB2 | 461.38750000 | | | 45.000000 | 45.000000 | |
| 7 | 1 | MO | 461.38750000 | | | 5.000000 | 5.000000 | |
| 4 | 1 | FB2 | 462.06250000 | | | 45.000000 | 45.000000 | |
| 5 | 1 | MO | 462.06250000 | | | 5.000000 | 5.000000 | |
| 8 | 1 | FB2 | 463.51250000 | | | 45.000000 | 45.000000 | |
| 9 | 1 | MO | 463.51250000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 464.16250000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 464.16250000 | | | 5.000000 | 5.000000 | |
| 7 | 1 | MO | 466.38750000 | | | 5.000000 | 5.000000 | |
| 5 | 1 | MO | 467.06250000 | | | 5.000000 | 5.000000 | |
| 9 | 1 | MO | 468.51250000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 469.16250000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 451.88750000 | | 7K60FXE |
| 3 | 1 | 451.93750000 | | 7K60FXE |
| 3 | 1 | 451.96250000 | | 7K60FXE |
| 3 | 1 | 452.08750000 | | 7K60FXE |
| 3 | 1 | 452.27500000 | | 7K60FXE |
| 3 | 1 | 452.33750000 | | 7K60FXE |
| 3 | 1 | 456.88750000 | | 7K60FXE |
| 3 | 1 | 456.96250000 | | 7K60FXE |
| 3 | 1 | 457.08750000 | | 7K60FXE |
| 3 | 1 | 457.33750000 | | 7K60FXE |
| 6 | 1 | 461.38750000 | | 7K60FXE |
| 7 | 1 | 461.38750000 | | 7K60FXE |
| 4 | 1 | 462.06250000 | | 7K60FXE |
| 5 | 1 | 462.06250000 | | 7K60FXE |
| 8 | 1 | 463.51250000 | | 7K60FXE |
| 9 | 1 | 463.51250000 | | 7K60FXE |
| 1 | 1 | 464.16250000 | | 7K60FXE |
| 2 | 1 | 464.16250000 | | 7K60FXE |
| 7 | 1 | 466.38750000 | | 7K60FXE |
| 5 | 1 | 467.06250000 | | 7K60FXE |
| 9 | 1 | 468.51250000 | | 7K60FXE |
| 2 | 1 | 469.16250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 600 D AVE, CORONADO, SAN DIEGO, CA | 32.69188889, -117.17836111 | 8.000 m | B | 9.100 m structure / 11.000 m overall | |
| 2 | T | | | | | | |
| 3 | T | CORONADO, SAN DIEGO, CA | 32.69188889, -117.17836111 | | | | |
| 4 | T | 201 6TH ST., CORONADO, SAN DIEGO, CA | 32.69647222, -117.18716667 | 3.000 m | B | 6.000 m structure / 8.000 m overall | |
| 5 | T | | | | | | |
| 6 | T | 600 6TH ST, CORONADO, SAN DIEGO, CA | 32.69336111, -117.18147222 | 7.000 m | B | 9.100 m structure / 11.000 m overall | |
| 7 | T | | | | | | |
| 8 | T | 1350 LEYTE RD, CORONADO, SAN DIEGO, CA | 32.64438889, -117.14458333 | 4.000 m | B | 9.100 m structure / 11.000 m overall | |
| 9 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | -11.600 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | 8.000 m | | | | -17.900 | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | 11.000 m | | | | -12.500 | |
| 1 | 7 | T | | | | | | | |
| 1 | 8 | T | | 11.000 m | | | | -14.300 | |
| 1 | 9 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 650 D AVE, CORONADO, CA | SAN DIEGO | 6195228900 |
| 2 | 201 6TH ST, CORONADO, CA | SAN DIEGO | 6195228900 |
| 3 | 600 6TH ST, CORONADO, CA | SAN DIEGO | 6195228900 |
| 4 | 1350 LEYTE RD, CORONADO, CA | SAN DIEGO | 6195228900 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-24 | WSIU421 | LETCNS |
| 2025-06-21 | WSIU421 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5153636 | 2026-08-02 01:24:15 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIU421 | ULS 5153636 | 2026-08-02 01:24:15 |
| Status | A | ULS 5153636 | 2026-08-02 01:24:15 |
| Service | IG | ULS 5153636 | 2026-08-02 01:24:15 |
| Grant Date | 2025-06-21 | ULS 5153636 | 2026-08-02 01:24:15 |
| Expiration Date | 2035-06-21 | ULS 5153636 | 2026-08-02 01:24:15 |