Universal Licensing System
WPMR471
Yellow Group, LLC
License details
| ULS identifier | 1799340 |
|---|
| Call sign | WPMR471 |
|---|
| Radio service | IG |
|---|
| Status | E |
|---|
| Grant date | 2013-09-06 |
|---|
| Expiration | 2023-11-18 |
|---|
| Cancellation | 2024-01-20 |
|---|
| Frequency range | 451.55 - 456.625 MHz (4 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | CRYSTAL LAKE, LAKE, IL |
|---|
| Coordinates | 42.2538889, -88.2838889 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:18:21 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.55000000 | | | 100.000000 | 52.000000 | |
| 3 | 1 | FB2 | 451.55000000 | | | 100.000000 | 125.000000 | |
| 1 | 1 | FB2 | 451.62500000 | | | 100.000000 | 52.000000 | |
| 3 | 1 | FB2 | 451.62500000 | | | 100.000000 | 125.000000 | |
| 2 | 1 | MO | 456.55000000 | | | 50.000000 | 50.000000 | |
| 4 | 1 | MO | 456.55000000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 456.62500000 | | | 50.000000 | 50.000000 | |
| 4 | 1 | MO | 456.62500000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.55000000 | | 11K2F3E |
| 1 | 1 | 451.55000000 | | 11K2F1D |
| 3 | 1 | 451.55000000 | | 11K2F1D |
| 3 | 1 | 451.55000000 | | 11K2F3E |
| 1 | 1 | 451.62500000 | | 11K2F1D |
| 1 | 1 | 451.62500000 | | 11K2F3E |
| 3 | 1 | 451.62500000 | | 11K2F3E |
| 3 | 1 | 451.62500000 | | 11K2F1D |
| 2 | 1 | 456.55000000 | | 11K2F3E |
| 2 | 1 | 456.55000000 | | 11K2F1D |
| 4 | 1 | 456.55000000 | | 11K2F1D |
| 4 | 1 | 456.55000000 | | 11K2F3E |
| 2 | 1 | 456.62500000 | | 11K2F3E |
| 2 | 1 | 456.62500000 | | 11K2F1D |
| 4 | 1 | 456.62500000 | | 11K2F3E |
| 4 | 1 | 456.62500000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Amoco Building, CHICAGO, COOK, IL | 41.88502778, -87.62158333 | 180.400 m | BMAST | 370.000 m structure / 370.000 m overall | N |
| 2 | T | | | | | | |
| 3 | | 1.9 MI E, CRYSTAL LAKE, LAKE, IL | 42.25388889, -88.28388889 | 277.400 m | TOWER | 85.300 m structure / 91.400 m overall | N |
| 4 | | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 362.000 m | | | | 369.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 91.400 m | | | | 115.000 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 3351 West Addison Street, Chicago, IL | COOK | 3128813199 |
License history
| Date | File or call sign | Action |
|---|
| 2024-01-20 | WPMR471 | LIEXP |
| 2023-08-28 | WPMR471 | LETRES |
| 2013-09-06 | WPMR471 | LIREN |
| 2013-08-26 | WPMR471 | LETRES |
| 2013-05-08 | WPMR471 | LIAUA |
| 2013-05-08 | WPMR471 | ESUAPR |
| 2012-05-15 | WPMR471 | LETCNS |
| 2011-08-16 | WPMR471 | LIMOD |
| 2008-03-10 | WPMR471 | ESUAPR |
| 2007-01-01 | WPMR471 | LIASS |
| 2005-03-22 | WPMR471 | LTSAPR |
| 2005-03-22 | WPMR471 | LIASS |
| 2003-09-24 | WPMR471 | LIREN |
| 2003-08-25 | WPMR471 | LETRES |
| 2002-05-23 | WPMR471 | AUDOPR |
| 2002-03-07 | WPMR471 | LIAUA |
| 2000-11-23 | WPMR471 | LICCNV |
| 1998-11-18 | WPMR471 | AUTHPR |
| 1998-11-18 | WPMR471 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1799340 | 2026-08-02 01:18:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMR471 | ULS 1799340 | 2026-08-02 01:18:21 |
| Status | E | ULS 1799340 | 2026-08-02 01:18:21 |
| Service | IG | ULS 1799340 | 2026-08-02 01:18:21 |
| Grant Date | 2013-09-06 | ULS 1799340 | 2026-08-02 01:18:21 |
| Expiration Date | 2023-11-18 | ULS 1799340 | 2026-08-02 01:18:21 |
| Cancellation Date | 2024-01-20 | ULS 1799340 | 2026-08-02 01:18:21 |