Universal Licensing System
WPKD543
CHICAGO BOARD OPTIONS EXCHANGE
License details
| ULS identifier | 1744755 |
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| Call sign | WPKD543 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-01-25 |
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| Expiration | 2002-01-25 |
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| Cancellation | 2002-05-05 |
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| Frequency range | 462.0125 MHz |
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| Locations | 1 |
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| Representative location | COOK, IL |
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| Coordinates | 41.8764167, -87.6322778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:28:59 |
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Licensee
| Name | CHICAGO BOARD OPTIONS EXCHANGE |
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| Applicant type | C |
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| Location | CHICAGO, IL |
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| Address | LA SALLE AT VAN BUREN, CHICAGO, IL, 60605 |
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| Phone | 3127867202 |
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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 | 462.01250000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 462.01250000 | | 20K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | COOK, IL | 41.87641667, -87.63227778 | | | | |
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 | LA SALLE AT VAN BUREN, CHICAGO, IL | | 3127867202 |
License history
| Date | File or call sign | Action |
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| 2002-05-05 | WPKD543 | LIEXP |
| 2001-10-29 | WPKD543 | LETRES |
| 2001-08-27 | WPKD543 | LETAUS |
| 2000-11-23 | WPKD543 | LICCNV |
| 1997-01-27 | WPKD543 | AUTHPR |
| 1997-01-25 | WPKD543 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1744755 | 2026-08-02 01:28:59 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKD543 | ULS 1744755 | 2026-08-02 01:28:59 |
| Status | E | ULS 1744755 | 2026-08-02 01:28:59 |
| Service | IG | ULS 1744755 | 2026-08-02 01:28:59 |
| Grant Date | 1997-01-25 | ULS 1744755 | 2026-08-02 01:28:59 |
| Expiration Date | 2002-01-25 | ULS 1744755 | 2026-08-02 01:28:59 |
| Cancellation Date | 2002-05-05 | ULS 1744755 | 2026-08-02 01:28:59 |