Universal Licensing System
WPKS583
STEPAN COMPANY
License details
| ULS identifier | 1908919 |
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| Call sign | WPKS583 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2002-06-12 |
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| Expiration | 2012-06-24 |
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| Cancellation | 2012-08-25 |
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| Frequency range | 153.335 MHz |
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| Locations | 1 |
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| Representative location | WILL, IL |
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| Coordinates | 41.4353056, -88.1622778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:24:55 |
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Licensee
| Name | STEPAN COMPANY |
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| Applicant type | C |
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| FRN | 0007225204 |
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| Location | ELWOOD, IL |
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| Address | 22500 W MILLSDALE RD, ELWOOD, IL, 60421 |
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| Phone | 8157274944 |
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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 | 153.33500000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 153.33500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | WILL, IL | 41.43530556, -88.16227778 | | | | |
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 | 22500 W MILLSDALE RD, ELWOOD, IL | | 8157274944 |
License history
| Date | File or call sign | Action |
|---|
| 2012-08-25 | WPKS583 | LIEXP |
| 2012-04-02 | WPKS583 | LETRES |
| 2002-06-26 | WPKS583 | AUDOPR |
| 2002-06-12 | WPKS583 | LIREN |
| 2002-04-01 | WPKS583 | LETRES |
| 2000-11-24 | WPKS583 | LICCNV |
| 1997-06-24 | WPKS583 | AUTHPR |
| 1997-06-24 | WPKS583 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1908919 | 2026-08-02 01:24:55 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKS583 | ULS 1908919 | 2026-08-02 01:24:55 |
| Status | E | ULS 1908919 | 2026-08-02 01:24:55 |
| Service | IG | ULS 1908919 | 2026-08-02 01:24:55 |
| Grant Date | 2002-06-12 | ULS 1908919 | 2026-08-02 01:24:55 |
| Expiration Date | 2012-06-24 | ULS 1908919 | 2026-08-02 01:24:55 |
| Cancellation Date | 2012-08-25 | ULS 1908919 | 2026-08-02 01:24:55 |