Universal Licensing System
WSDA921
Philip J. Rock Center and School
License details
| ULS identifier | 4956319 |
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| Call sign | WSDA921 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2024-05-23 |
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| Expiration | 2034-05-23 |
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| Frequency range | 451.3125 - 456.6125 MHz (6 frequencies) |
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| Locations | 1 |
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| Representative location | Glen Ellyn, DUPAGE, IL |
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| Coordinates | 41.8616667, -88.0520833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:24:25 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.61250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.61250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.31250000 | | 7K60FXE |
| 1 | 1 | 451.41250000 | | 7K60FXE |
| 1 | 1 | 451.61250000 | | 7K60FXE |
| 1 | 1 | 456.31250000 | | 7K60FXE |
| 1 | 1 | 456.41250000 | | 7K60FXE |
| 1 | 1 | 456.61250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 818 DuPage Blvd, Glen Ellyn, DUPAGE, IL | 41.86166667, -88.05208333 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 818 DuPage Blvd, Glen Ellyn, IL | DUPAGE | 6307904893 |
License history
| Date | File or call sign | Action |
|---|
| 2025-02-25 | WSDA921 | LETCNS |
| 2024-05-23 | WSDA921 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4956319 | 2026-08-02 01:24:25 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSDA921 | ULS 4956319 | 2026-08-02 01:24:25 |
| Status | A | ULS 4956319 | 2026-08-02 01:24:25 |
| Service | IG | ULS 4956319 | 2026-08-02 01:24:25 |
| Grant Date | 2024-05-23 | ULS 4956319 | 2026-08-02 01:24:25 |
| Expiration Date | 2034-05-23 | ULS 4956319 | 2026-08-02 01:24:25 |