Universal Licensing System
WRJN947
Northern Illinois Medical Center
License details
| ULS identifier | 4338922 |
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| Call sign | WRJN947 |
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| Radio service | AF |
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| Status | E |
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| Grant date | 2020-10-01 |
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| Expiration | 2021-03-30 |
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| Cancellation | 2021-06-05 |
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| Frequency range | 123.05 MHz |
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| Locations | 1 |
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| Representative location | McHenry, MCHENRY, IL |
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| Coordinates | 42.3194722, -88.2789722 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:29 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FAA | 123.05000000 | | | 10.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 123.05000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 4201 Medical Center Drive, McHenry, MCHENRY, IL | 42.31947222, -88.27897222 | 248.000 m | B | 28.000 m structure / 44.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 8.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | NORTHERN ILLINOIS MEDICAL CENTER HELIPORT EMERGENCY DEPT 4201 W Medical Center D, McHenry, IL | MCHENRY | 8153445000 |
License history
| Date | File or call sign | Action |
|---|
| 2021-06-05 | WRJN947 | LIEXP |
| 2020-10-01 | WRJN947 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4338922 | 2026-08-02 02:08:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRJN947 | ULS 4338922 | 2026-08-02 02:08:29 |
| Status | E | ULS 4338922 | 2026-08-02 02:08:29 |
| Service | AF | ULS 4338922 | 2026-08-02 02:08:29 |
| Grant Date | 2020-10-01 | ULS 4338922 | 2026-08-02 02:08:29 |
| Expiration Date | 2021-03-30 | ULS 4338922 | 2026-08-02 02:08:29 |
| Cancellation Date | 2021-06-05 | ULS 4338922 | 2026-08-02 02:08:29 |