Universal Licensing System
WPOP258
Transmission Holdings, Inc.
License details
| ULS identifier | 1047167 |
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| Call sign | WPOP258 |
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| Radio service | MG |
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| Status | C |
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| Grant date | 1998-08-04 |
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| Expiration | 2008-08-04 |
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| Cancellation | 2007-12-13 |
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| Frequency range | 18142 - 18580 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8703056, -87.6714167 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:42:38 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 18142.00000000 | 18580.00000000 | | | | |
| 1 | 2 | FXO | 18142.00000000 | 18580.00000000 | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 18142.00000000 | | 250KF3E |
| 1 | 1 | 18142.00000000 | | 5M75C3F |
| 1 | 1 | 18142.00000000 | | 100KN0N |
| 1 | 2 | 18142.00000000 | | 5M75C3F |
| 1 | 2 | 18142.00000000 | | 100KN0N |
| 1 | 2 | 18142.00000000 | | 250KF3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | UNIVERSITY OF ILLINOIS-CHICAGO, CHICAGO, COOK, IL | 41.87030556, -87.67141667 | 179.800 m | | 57.900 m structure / 57.900 m overall | |
| 2 | R | | 41.87033333, -87.64802778 | 179.800 m | | | |
| 3 | R | | 41.87125000, -87.67608333 | 179.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 48.0000 | 90.0000 | | |
| 1 | 2 | R | | | | 44.5000 | | | |
| 1 | 3 | R | | | | 38.7000 | | | |
| 2 | 1 | T | | | V | 44.5000 | 284.8000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2007-12-14 | WPOP258 | LICAN |
| 2002-03-29 | WPOP258 | LIAUA |
| 2002-01-31 | WPOP258 | LITRAN |
| 2000-10-23 | WPOP258 | LITRAN |
| 2000-01-21 | WPOP258 | LITRAN |
| 1999-08-14 | WPOP258 | LICCNV |
| 1998-08-04 | WPOP258 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1047167 | 2026-08-02 02:42:38 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPOP258 | ULS 1047167 | 2026-08-02 02:42:38 |
| Status | C | ULS 1047167 | 2026-08-02 02:42:38 |
| Service | MG | ULS 1047167 | 2026-08-02 02:42:38 |
| Grant Date | 1998-08-04 | ULS 1047167 | 2026-08-02 02:42:38 |
| Expiration Date | 2008-08-04 | ULS 1047167 | 2026-08-02 02:42:38 |
| Cancellation Date | 2007-12-13 | ULS 1047167 | 2026-08-02 02:42:38 |