Universal Licensing System
WRFH257
City of Chicago - Office of Public Safety Administration
License details
| ULS identifier | 4256799 |
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| Call sign | WRFH257 |
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| Radio service | MW |
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| Status | A |
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| Grant date | 2020-03-02 |
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| Expiration | 2030-03-02 |
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| Frequency range | 17820 MHz |
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| Locations | 2 |
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| Representative location | Chicago, COOK, IL |
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| Coordinates | 41.9729722, -87.6545556 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:08 |
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Licensee
| Name | City of Chicago - Office of Public Safety Administration |
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| Applicant type | G |
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| FRN | 0002833416 |
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| Location | Chicago, IL |
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| Address | 1411 W Madison St, Chicago, IL, 60607 |
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| Phone | 3127469225 |
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| Email | [email protected] |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
| 1 | 1 | FXO | 17820.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0D7W |
| 1 | 1 | 17820.00000000 | | 80M0G7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4945 N Sheridan Rd, Chicago, COOK, IL | 41.97297222, -87.65455556 | 181.200 m | B | 77.000 m structure / 78.000 m overall | |
| 2 | R | | 41.99972222, -87.67194444 | 182.900 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Cambium Networks, LTD N180082D053 | | V | 43.5000 | 334.1000 | | |
| 1 | 2 | R | Cambium Networks, LTD N180082D053 | | | 43.5000 | 0.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-03-26 | WRFH257 | LIAUA |
| 2020-03-02 | WRFH257 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4256799 | 2026-08-02 02:46:08 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRFH257 | ULS 4256799 | 2026-08-02 02:46:08 |
| Status | A | ULS 4256799 | 2026-08-02 02:46:08 |
| Service | MW | ULS 4256799 | 2026-08-02 02:46:08 |
| Grant Date | 2020-03-02 | ULS 4256799 | 2026-08-02 02:46:08 |
| Expiration Date | 2030-03-02 | ULS 4256799 | 2026-08-02 02:46:08 |