Universal Licensing System
WAA678
UNDERWRITERS LABS. INC.
License details
| ULS identifier | 968011 |
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| Call sign | WAA678 |
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| Radio service | MG |
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| Status | C |
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| Grant date | 1993-01-21 |
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| Expiration | 1998-01-21 |
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| Cancellation | 1997-11-14 |
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| Frequency range | 23025 MHz |
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| Locations | 2 |
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| Representative location | NORTHBROOK, COOK, IL |
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| Coordinates | 42.1461111, -87.8392222 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:05 |
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Licensee
| Name | UNDERWRITERS LABS. INC. |
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| Applicant type | C |
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| Location | NORTHBROOK, IL |
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| Address | 333 PFINGSTEN RD, NORTHBROOK, IL, 60062 |
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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 | FXO | 23025.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 23025.00000000 | | 16M0A9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 333 PFINGSTEN RD, NORTHBROOK, COOK, IL | 42.14611111, -87.83922222 | 202.100 m | | 15.200 m structure / 15.200 m overall | |
| 2 | R | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | V | 34.0000 | 267.2000 | | |
| 1 | 2 | R | | | | 34.0000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WAA678 | LICCNV |
| 1997-11-14 | WAA678 | LICAN |
| 1993-01-21 | WAA678 | LIMOD |
| 1992-12-14 | WAA678 | LIMOD |
| 1988-02-01 | WAA678 | LIMOD |
| 1983-02-18 | WAA678 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 968011 | 2026-08-02 02:48:05 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WAA678 | ULS 968011 | 2026-08-02 02:48:05 |
| Status | C | ULS 968011 | 2026-08-02 02:48:05 |
| Service | MG | ULS 968011 | 2026-08-02 02:48:05 |
| Grant Date | 1993-01-21 | ULS 968011 | 2026-08-02 02:48:05 |
| Expiration Date | 1998-01-21 | ULS 968011 | 2026-08-02 02:48:05 |
| Cancellation Date | 1997-11-14 | ULS 968011 | 2026-08-02 02:48:05 |