Universal Licensing System
WPRR940
CHICAGO TRANSIT AUTHORITY
License details
| ULS identifier | 1937952 |
|---|
| Call sign | WPRR940 |
|---|
| Radio service | PW |
|---|
| Status | A |
|---|
| Grant date | 2025-12-02 |
|---|
| Expiration | 2036-01-04 |
|---|
| Frequency range | 471.6625 - 474.6625 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | CHICAGO, COOK, IL |
|---|
| Coordinates | 41.8847500, -87.6320000 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:43 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 471.66250000 | | | 75.000000 | 239.000000 | |
| 2 | 1 | MO | 474.66250000 | | | 25.000000 | 20.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 471.66250000 | | 20K0F2D |
| 2 | 1 | 474.66250000 | | 20K0F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 80 W WASHINGTON ST, CHICAGO, COOK, IL | 41.88475000, -87.63200000 | 182.000 m | B | 197.000 m structure / 201.000 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 201.000 m | | | | 199.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 901 W. Division Street, Chicago, IL | COOK | 3122226141 |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-02 | WPRR940 | LIREN |
| 2025-11-24 | WPRR940 | LETRES |
| 2025-07-02 | WPRR940 | LIAUA |
| 2019-02-27 | WPRR940 | LIAUA |
| 2015-10-14 | WPRR940 | LIREN |
| 2015-10-13 | WPRR940 | ESUAPR |
| 2015-10-12 | WPRR940 | LETRES |
| 2012-10-30 | WPRR940 | LTSAPR |
| 2012-10-29 | WPRR940 | ESUAPR |
| 2012-10-29 | WPRR940 | EFUAPR |
| 2006-11-14 | WPRR940 | LIAUA |
| 2006-11-13 | WPRR940 | ESUAPR |
| 2005-11-15 | WPRR940 | LIREN |
| 2005-11-05 | WPRR940 | ESURNW |
| 2005-10-10 | WPRR940 | LETRES |
| 2005-10-06 | WPRR940 | ESURNW |
| 2005-05-30 | WPRR940 | LTSAPR |
| 2005-05-28 | WPRR940 | LIAUA |
| 2004-02-20 | WPRR940 | AUDOPR |
| 2001-07-09 | WPRR940 | LIMOD |
| 2001-01-04 | WPRR940 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1937952 | 2026-08-02 01:14:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPRR940 | ULS 1937952 | 2026-08-02 01:14:43 |
| Status | A | ULS 1937952 | 2026-08-02 01:14:43 |
| Service | PW | ULS 1937952 | 2026-08-02 01:14:43 |
| Grant Date | 2025-12-02 | ULS 1937952 | 2026-08-02 01:14:43 |
| Expiration Date | 2036-01-04 | ULS 1937952 | 2026-08-02 01:14:43 |