Universal Licensing System
WSJU312
CITY OF CHICAGO - OFFICE OF PUBLIC SAFETY ADMINISTRATION
License details
| ULS identifier | 5189087 |
|---|
| Call sign | WSJU312 |
|---|
| Radio service | PF |
|---|
| Status | A |
|---|
| Grant date | 2025-08-26 |
|---|
| Expiration | 2035-08-26 |
|---|
| Frequency range | 4950 MHz |
|---|
| Locations | 5 |
|---|
| Representative location | CHICAGO, COOK, IL |
|---|
| Coordinates | 41.8869444, -87.6272222 |
|---|
| 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 | | | | | |
| 1 | 3 | FXO | 4950.00000000 | | | | | |
| 1 | 4 | FXO | 4950.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4950.00000000 | | 18M1D7D |
| 1 | 2 | 4950.00000000 | | 18M1D7D |
| 1 | 3 | 4950.00000000 | | 18M1D7D |
| 1 | 4 | 4950.00000000 | | 18M1D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3 E WACKER PLACE, CHICAGO, COOK, IL | 41.88694444, -87.62722222 | 184.000 m | POLE | 10.000 m structure / 10.000 m overall | |
| 2 | R | | 41.88722222, -87.62666667 | 199.000 m | | | |
| 3 | R | | 41.88666667, -87.63222222 | 181.000 m | | | |
| 4 | R | | 41.88722222, -87.63111111 | 183.000 m | | | |
| 5 | R | | 41.88777778, -87.62944444 | 189.000 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 | 56.1000 | | |
| 1 | 2 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 1 | 3 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 1 | 4 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 1 | 5 | R | CAMBUIM PMP 450B MID-GAIN | | | 16.0000 | | | |
| 2 | 1 | T | CAMBIUM 450 MICROPOP OMNI | | S | 9.0000 | 265.7000 | | |
| 3 | 1 | T | CAMBIUM 450 MICROPOP OMNI | | S | 9.0000 | 275.5000 | | |
| 4 | 1 | T | CAMBIUM 450 MICROPOP OMNI | | S | 9.0000 | 296.7000 | | |
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 | WSJU312 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5189087 | 2026-08-24 01:41:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSJU312 | ULS 5189087 | 2026-08-24 01:41:32 |
| Status | A | ULS 5189087 | 2026-08-24 01:41:32 |
| Service | PF | ULS 5189087 | 2026-08-24 01:41:32 |
| Grant Date | 2025-08-26 | ULS 5189087 | 2026-08-24 01:41:32 |
| Expiration Date | 2035-08-26 | ULS 5189087 | 2026-08-24 01:41:32 |