Universal Licensing System
WQDU379
EXTELL DEVELOPMENT CO
License details
| ULS identifier | 2760342 |
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| Call sign | WQDU379 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2015-08-28 |
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| Expiration | 2025-11-01 |
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| Cancellation | 2026-01-03 |
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| Frequency range | 451.3 - 456.3 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8775000, -87.6333333 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:43 |
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Licensee
| Name | EXTELL DEVELOPMENT CO |
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| Applicant type | C |
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| FRN | 0014099725 |
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| Location | CHICAGO, IL |
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| Address | 175 W. Jackson Blvd, Suite 2250, CHICAGO, IL, 60604 |
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| Phone | 3127812420 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB2 | 451.30000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 451.30000000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 456.30000000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.30000000 | | 11K2F3E |
| 2 | 1 | 451.30000000 | | 11K2F3E |
| 2 | 1 | 456.30000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 175 W JACKSON, CHICAGO, COOK, IL | 41.87750000, -87.63333333 | 181.000 m | B | 85.300 m structure / 85.300 m overall | |
| 2 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | | | 82.200 m | | | | 80.500 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 175 W JACKSON, CHICAGO, IL | COOK | 3127812405 |
License history
| Date | File or call sign | Action |
|---|
| 2026-01-03 | WQDU379 | LIEXP |
| 2025-08-11 | WQDU379 | LETRES |
| 2015-08-28 | WQDU379 | LIREN |
| 2015-08-10 | WQDU379 | LETRES |
| 2013-04-08 | WQDU379 | LIMOD |
| 2006-12-06 | WQDU379 | LETTRS |
| 2006-12-06 | WQDU379 | PNLISR |
| 2006-07-31 | WQDU379 | LETCNS |
| 2005-11-01 | WQDU379 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2760342 | 2026-08-02 01:17:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WQDU379 | ULS 2760342 | 2026-08-02 01:17:43 |
| Status | E | ULS 2760342 | 2026-08-02 01:17:43 |
| Service | IG | ULS 2760342 | 2026-08-02 01:17:43 |
| Grant Date | 2015-08-28 | ULS 2760342 | 2026-08-02 01:17:43 |
| Expiration Date | 2025-11-01 | ULS 2760342 | 2026-08-02 01:17:43 |
| Cancellation Date | 2026-01-03 | ULS 2760342 | 2026-08-02 01:17:43 |