Universal Licensing System
WSJU257
CITY OF CHICAGO - OFFICE OF PUBLIC SAFETY ADMINISTRATION
License details
| ULS identifier | 5189032 |
|---|
| Call sign | WSJU257 |
|---|
| Radio service | PF |
|---|
| Status | A |
|---|
| Grant date | 2025-08-26 |
|---|
| Expiration | 2035-08-26 |
|---|
| Frequency range | 4950 MHz |
|---|
| Locations | 3 |
|---|
| Representative location | CHICAGO, COOK, IL |
|---|
| Coordinates | 41.8802778, -87.6202778 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-24 01:41:32 |
|---|
Licensee
| Name | CITY OF CHICAGO - OFFICE OF PUBLIC SAFETY ADMINISTRATION |
|---|
| Applicant type | G |
|---|
| FRN | 0002833416 |
|---|
| Location | CHICAGO, IL |
|---|
| Address | 1411 W MADISON ST, CHICAGO, IL, 60607 |
|---|
| Phone | 3127469225 |
|---|
| Email | [email protected] |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 4950.00000000 | | | | | |
| 1 | 2 | FXO | 4950.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4950.00000000 | | 18M1D7D |
| 1 | 2 | 4950.00000000 | | 18M1D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 350 E MONROE, CHICAGO, COOK, IL | 41.88027778, -87.62027778 | 182.000 m | POLE | 10.000 m structure / 10.000 m overall | |
| 2 | R | | 41.88083333, -87.62055556 | 182.000 m | | | |
| 3 | R | | 41.87944444, -87.62166667 | 182.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | CAMBIUM 450 MICROPOP OMNI | | S | 9.0000 | 339.6000 | | |
| 1 | 2 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 1 | 3 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 2 | 1 | T | CAMBIUM 450 MICROPOP OMNI | | S | 9.0000 | 3.6000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1411 W MADISON ST, CHICAGO, IL | COOK | 3127469225 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-26 | WSJU257 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5189032 | 2026-08-24 01:41:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSJU257 | ULS 5189032 | 2026-08-24 01:41:32 |
| Status | A | ULS 5189032 | 2026-08-24 01:41:32 |
| Service | PF | ULS 5189032 | 2026-08-24 01:41:32 |
| Grant Date | 2025-08-26 | ULS 5189032 | 2026-08-24 01:41:32 |
| Expiration Date | 2035-08-26 | ULS 5189032 | 2026-08-24 01:41:32 |