Universal Licensing System
WNDU504
ADT Security Services, Inc.
License details
| ULS identifier | 1650235 |
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| Call sign | WNDU504 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 2000-11-01 |
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| Expiration | 2005-11-19 |
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| Cancellation | 2005-10-05 |
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| Frequency range | 461 - 466 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 01:13:43 |
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Licensee
| Name | ADT Security Services, Inc. |
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| Applicant type | C |
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| FRN | 0004588976 |
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| Location | Boca Raton, FL |
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| Address | One Town Center Rd, Boca Raton, FL, 334861010 |
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| Phone | 5619883882 |
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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 | 461.00000000 | | | 100.000000 | 45.000000 | |
| 2 | 1 | MO | 466.00000000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 466.00000000 | | | 20.000000 | 20.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.00000000 | | 20K0F3E |
| 2 | 1 | 466.00000000 | | 20K0F3E |
| 3 | 1 | 466.00000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 233 S WACKER, CHICAGO, COOK, IL | 41.87891667, -87.63616667 | 181.000 m | | | N |
| 2 | T | | | | | | |
| 3 | T | IL | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 185.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2715 N THATCHER AVE, RIVER GROVE, IL | | 3124567200 |
License history
| Date | File or call sign | Action |
|---|
| 2005-10-06 | WNDU504 | LICAN |
| 2005-08-29 | WNDU504 | LETRES |
| 2002-03-08 | WNDU504 | AUDOPR |
| 2001-12-31 | WNDU504 | LIASS |
| 2001-07-03 | WNDU504 | LITRAN |
| 2001-06-06 | WNDU504 | LIAUA |
| 2001-01-26 | WNDU504 | LITRAN |
| 2000-11-23 | WNDU504 | LICCNV |
| 2000-11-01 | WNDU504 | LIREN |
| 2000-11-01 | WNDU504 | AUTHPR |
| 2000-08-21 | WNDU504 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1650235 | 2026-08-02 01:13:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNDU504 | ULS 1650235 | 2026-08-02 01:13:43 |
| Status | C | ULS 1650235 | 2026-08-02 01:13:43 |
| Service | IG | ULS 1650235 | 2026-08-02 01:13:43 |
| Grant Date | 2000-11-01 | ULS 1650235 | 2026-08-02 01:13:43 |
| Expiration Date | 2005-11-19 | ULS 1650235 | 2026-08-02 01:13:43 |
| Cancellation Date | 2005-10-05 | ULS 1650235 | 2026-08-02 01:13:43 |