Universal Licensing System
WRDU238
MARRIOTT HOTEL SERVICES, INC. DBA CHICAGO MARRIOTT SUITES DOWNERS GROVE
License details
| ULS identifier | 4181427 |
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| Call sign | WRDU238 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-07-20 |
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| Expiration | 2029-07-20 |
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| Frequency range | 456.3875 - 457.6625 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | DOWNERS GROVE, DUPAGE, IL |
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| Coordinates | 41.8290556, -88.0245556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:06 |
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Licensee
| Name | MARRIOTT HOTEL SERVICES, INC. DBA CHICAGO MARRIOTT SUITES DOWNERS GROVE |
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| Applicant type | G |
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| FRN | 0028599785 |
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| Location | DOWNERS GROVE, IL |
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| Address | 1500 OPUS PLACE, DOWNERS GROVE, IL, 60515 |
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| Phone | 6308521500 |
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| Email | [email protected] |
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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 | MO | 456.38750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.41250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.53750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.63750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 457.66250000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 456.38750000 | | 11K0F3E |
| 1 | 1 | 456.41250000 | | 11K0F3E |
| 1 | 1 | 456.53750000 | | 11K0F3E |
| 1 | 1 | 456.63750000 | | 11K0F3E |
| 1 | 1 | 457.66250000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | DOWNERS GROVE, DUPAGE, IL | 41.82905556, -88.02455556 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1500 OPUS PLACE, DOWNERS GROVE, IL | DUPAGE | 6308521500 |
License history
| Date | File or call sign | Action |
|---|
| 2022-12-31 | WRDU238 | LITRAN |
| 2019-07-20 | WRDU238 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4181427 | 2026-08-02 01:23:06 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDU238 | ULS 4181427 | 2026-08-02 01:23:06 |
| Status | A | ULS 4181427 | 2026-08-02 01:23:06 |
| Service | IG | ULS 4181427 | 2026-08-02 01:23:06 |
| Grant Date | 2019-07-20 | ULS 4181427 | 2026-08-02 01:23:06 |
| Expiration Date | 2029-07-20 | ULS 4181427 | 2026-08-02 01:23:06 |