Universal Licensing System
WSIM291
DuPage Public Safety Communications
License details
| ULS identifier | 5143208 |
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| Call sign | WSIM291 |
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| Radio service | PF |
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| Status | A |
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| Grant date | 2025-05-28 |
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| Expiration | 2035-05-28 |
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| Frequency range | 4967.5 MHz |
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| Locations | 2 |
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| Representative location | Downers Grove, DUPAGE, IL |
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| Coordinates | 41.7581944, -88.0264722 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:17 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FXO | 4967.50000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4967.50000000 | | 4M50G7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 7100 Springside, Downers Grove, DUPAGE, IL | 41.75819444, -88.02647222 | 232.900 m | TANK | 33.500 m structure / 36.600 m overall | |
| 2 | R | | 41.79533333, -88.00286111 | 219.300 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Cambium PTP-670 | | S | 23.0000 | 24.0000 | | |
| 1 | 2 | R | Cambium PTP-670 | | | 23.0000 | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 420 N. County Farm Rd, Wheaton, IL | DUPAGE | 6302607500 |
License history
| Date | File or call sign | Action |
|---|
| 2025-05-28 | WSIM291 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5143208 | 2026-08-02 02:47:17 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIM291 | ULS 5143208 | 2026-08-02 02:47:17 |
| Status | A | ULS 5143208 | 2026-08-02 02:47:17 |
| Service | PF | ULS 5143208 | 2026-08-02 02:47:17 |
| Grant Date | 2025-05-28 | ULS 5143208 | 2026-08-02 02:47:17 |
| Expiration Date | 2035-05-28 | ULS 5143208 | 2026-08-02 02:47:17 |