Universal Licensing System
WRWH457
Norridge School District #80
License details
| ULS identifier | 4727575 |
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| Call sign | WRWH457 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2023-02-22 |
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| Expiration | 2033-02-22 |
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| Frequency range | 456.3625 - 467.3625 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | Norridge, COOK, IL |
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| Coordinates | 41.9653333, -87.8314444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:14 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 456.36250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.66250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.06250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 462.36250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 467.36250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 456.36250000 | | 7K60FXD |
| 1 | 1 | 456.36250000 | | 7K60FXE |
| 1 | 1 | 456.66250000 | | 7K60FXE |
| 1 | 1 | 456.66250000 | | 7K60FXD |
| 1 | 1 | 457.06250000 | | 7K60FXE |
| 1 | 1 | 457.06250000 | | 7K60FXD |
| 1 | 1 | 462.36250000 | | 7K60FXE |
| 1 | 1 | 462.36250000 | | 7K60FXD |
| 1 | 1 | 467.36250000 | | 7K60FXD |
| 1 | 1 | 467.36250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Norridge, COOK, IL | 41.96533333, -87.83144444 | | | | |
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 |
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| 1 | 8151 W Lawrence Ave, Norridge, IL | COOK | 7085832068 |
License history
| Date | File or call sign | Action |
|---|
| 2023-11-21 | WRWH457 | LETCNS |
| 2023-02-22 | WRWH457 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4727575 | 2026-08-02 01:23:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRWH457 | ULS 4727575 | 2026-08-02 01:23:14 |
| Status | A | ULS 4727575 | 2026-08-02 01:23:14 |
| Service | IG | ULS 4727575 | 2026-08-02 01:23:14 |
| Grant Date | 2023-02-22 | ULS 4727575 | 2026-08-02 01:23:14 |
| Expiration Date | 2033-02-22 | ULS 4727575 | 2026-08-02 01:23:14 |