Universal Licensing System
WNWK587
COOK COUNTY SHERIFF'S POLICE
License details
| ULS identifier | 1229071 |
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| Call sign | WNWK587 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2021-03-09 |
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| Expiration | 2031-05-30 |
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| Frequency range | 155.025 - 155.055 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | MAYWOOD, COOK, IL |
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| Coordinates | 41.8750278, -87.8306111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:59 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 155.02500000 | | | 50.000000 | 30.000000 | |
| 2 | 1 | MO | 155.02500000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 155.02500000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 155.05500000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 155.05500000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 155.05500000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 155.02500000 | | 8K10F1E |
| 1 | 1 | 155.02500000 | | 11K0F3E |
| 2 | 1 | 155.02500000 | | 11K0F3E |
| 2 | 1 | 155.02500000 | | 8K10F1E |
| 2 | 1 | 155.02500000 | | 8K10F1E |
| 2 | 1 | 155.02500000 | | 11K0F3E |
| 2 | 1 | 155.05500000 | | 11K0F3E |
| 2 | 1 | 155.05500000 | | 8K10F1E |
| 2 | 1 | 155.05500000 | | 8K10F1E |
| 2 | 1 | 155.05500000 | | 11K0F3E |
| 2 | 1 | 155.05500000 | | 11K0F3E |
| 2 | 1 | 155.05500000 | | 8K10F1E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 1401 S MAYBROOK DR, MAYWOOD, COOK, IL | 41.87502778, -87.83061111 | 191.000 m | | 58.000 m structure / 58.000 m overall | N |
| 2 | T | COOK, IL | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 21.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | COOK CTY SHERIFFS POLICE DEPT E S D A 1401 S MAYBROOK DR, MAYWOOD, IL | | 7088654700 |
License history
| Date | File or call sign | Action |
|---|
| 2021-04-20 | WNWK587 | LIAUA |
| 2021-03-09 | WNWK587 | LIREN |
| 2017-09-22 | WNWK587 | LIMOD |
| 2011-04-30 | WNWK587 | LIREN |
| 2011-03-31 | WNWK587 | ESURNW |
| 2011-03-07 | WNWK587 | LETRES |
| 2011-03-01 | WNWK587 | ESURNW |
| 2010-06-14 | WNWK587 | LIMOD |
| 2009-07-27 | WNWK587 | ESCFRN |
| 2009-07-27 | WNWK587 | ESCFND |
| 2001-09-17 | WNWK587 | AUDOPR |
| 2001-04-18 | WNWK587 | LIREN |
| 2001-03-05 | WNWK587 | LETRES |
| 2000-10-20 | WNWK587 | LICCNV |
| 1996-04-09 | WNWK587 | LIREN |
| 1996-04-09 | WNWK587 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1229071 | 2026-08-02 01:13:59 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNWK587 | ULS 1229071 | 2026-08-02 01:13:59 |
| Status | A | ULS 1229071 | 2026-08-02 01:13:59 |
| Service | PW | ULS 1229071 | 2026-08-02 01:13:59 |
| Grant Date | 2021-03-09 | ULS 1229071 | 2026-08-02 01:13:59 |
| Expiration Date | 2031-05-30 | ULS 1229071 | 2026-08-02 01:13:59 |