Universal Licensing System
KOL4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1968647 |
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| Call sign | KOL4 |
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| Radio service | AF |
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| Status | A |
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| Grant date | 2019-04-04 |
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| Expiration | 2029-04-20 |
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| Frequency range | 128.925 MHz |
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| Locations | 1 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.9914722, -87.8895000 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:26 |
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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 | FA | 128.92500000 | | | 10.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 128.92500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | O HARE INTERNATIONAL AIRPORT, CHICAGO, COOK, IL | 41.99147222, -87.88950000 | 204.000 m | BANT | 6.000 m structure / 8.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 8.000 m | | | 360.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2019-04-04 | KOL4 | LIREN |
| 2015-02-06 | KOL4 | LIAUA |
| 2015-02-05 | KOL4 | LIAUA |
| 2015-02-05 | KOL4 | ESUAPR |
| 2015-02-04 | KOL4 | ESUAPR |
| 2009-04-14 | KOL4 | LIREN |
| 2009-01-26 | KOL4 | LETRES |
| 2007-03-01 | KOL4 | AUTHPR |
| 2006-03-07 | KOL4 | AUTHPR |
| 2006-01-01 | KOL4 | LIASS |
| 2005-07-25 | KOL4 | ESCAPR |
| 2004-03-23 | KOL4 | LIREN |
| 2004-01-26 | KOL4 | LETRES |
| 2001-04-27 | KOL4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1968647 | 2026-08-02 02:08:26 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KOL4 | ULS 1968647 | 2026-08-02 02:08:26 |
| Status | A | ULS 1968647 | 2026-08-02 02:08:26 |
| Service | AF | ULS 1968647 | 2026-08-02 02:08:26 |
| Grant Date | 2019-04-04 | ULS 1968647 | 2026-08-02 02:08:26 |
| Expiration Date | 2029-04-20 | ULS 1968647 | 2026-08-02 02:08:26 |