Universal Licensing System
WIM279
ESP Wireless Technology Group
License details
| ULS identifier | 1645393 |
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| Call sign | WIM279 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-02-12 |
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| Expiration | 2035-05-03 |
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| Frequency range | 471.9125 - 474.9125 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8789167, -87.6361667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:21 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 471.91250000 | | | 100.000000 | 250.000000 | |
| 2 | 1 | MO | 471.91250000 | | | 50.000000 | 50.000000 | |
| 2 | 1 | MO | 474.91250000 | | | 50.000000 | 50.000000 | |
| 3 | 1 | FX1T | 474.91250000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 471.91250000 | | 20K0F1D |
| 1 | 1 | 471.91250000 | | 15K0F2D |
| 1 | 1 | 471.91250000 | | 20K0F3E |
| 2 | 1 | 471.91250000 | | 20K0F3E |
| 2 | 1 | 471.91250000 | | 15K0F2D |
| 2 | 1 | 471.91250000 | | 20K0F1D |
| 2 | 1 | 474.91250000 | | 20K0F3E |
| 2 | 1 | 474.91250000 | | 20K0F1D |
| 2 | 1 | 474.91250000 | | 15K0F2D |
| 3 | 1 | 474.91250000 | | 20K0F1D |
| 3 | 1 | 474.91250000 | | 15K0F2D |
| 3 | 1 | 474.91250000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SEARS TOWER, CHICAGO, COOK, IL | 41.87891667, -87.63616667 | 174.000 m | B | 436.000 m structure / 436.000 m overall | N |
| 2 | T | | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 366.000 m | | | | 361.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 9126 Ogden Ave., Brookfield, IL | COOK | 7084858930 |
License history
| Date | File or call sign | Action |
|---|
| 2025-03-07 | WIM279 | LIAUA |
| 2025-02-12 | WIM279 | LIREN |
| 2025-02-10 | WIM279 | LETRES |
| 2015-04-16 | WIM279 | LIREN |
| 2015-04-16 | WIM279 | LTSAPR |
| 2015-02-09 | WIM279 | LETRES |
| 2010-12-14 | WIM279 | LIAUA |
| 2010-12-14 | WIM279 | LTSAPR |
| 2008-11-11 | WIM279 | LTSAPR |
| 2008-11-11 | WIM279 | LIAUA |
| 2006-03-02 | WIM279 | LTSAPR |
| 2006-03-01 | WIM279 | LIAUA |
| 2005-03-10 | WIM279 | LIREN |
| 2005-01-20 | WIM279 | LIASS |
| 2005-01-07 | WIM279 | ESCAPR |
| 2002-03-11 | WIM279 | AUDOPR |
| 2000-11-23 | WIM279 | LICCNV |
| 2000-05-16 | WIM279 | AUTHPR |
| 2000-05-16 | WIM279 | LIREN |
| 2000-01-28 | WIM279 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1645393 | 2026-08-02 01:16:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WIM279 | ULS 1645393 | 2026-08-02 01:16:21 |
| Status | A | ULS 1645393 | 2026-08-02 01:16:21 |
| Service | IG | ULS 1645393 | 2026-08-02 01:16:21 |
| Grant Date | 2025-02-12 | ULS 1645393 | 2026-08-02 01:16:21 |
| Expiration Date | 2035-05-03 | ULS 1645393 | 2026-08-02 01:16:21 |