Universal Licensing System
KOS2
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1968706 |
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| Call sign | KOS2 |
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| Radio service | AF |
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| Status | C |
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| Grant date | 2005-01-11 |
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| Expiration | 2015-02-10 |
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| Cancellation | 2006-02-06 |
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| Frequency range | 131.725 MHz |
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| Locations | 1 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.7861389, -87.7522778 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:28 |
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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 | 131.72500000 | | | 55.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 131.72500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | MIDWAY AIRPORT, CHICAGO, COOK, IL | 41.78613889, -87.75227778 | 189.000 m | B | 8.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2015-02-05 | KOS2 | AUTHPR |
| 2006-02-07 | KOS2 | LICAN |
| 2006-01-01 | KOS2 | LIASS |
| 2005-07-25 | KOS2 | ESCAPR |
| 2005-01-11 | KOS2 | LIREN |
| 2004-11-15 | KOS2 | LETRES |
| 2001-04-27 | KOS2 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1968706 | 2026-08-02 02:08:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KOS2 | ULS 1968706 | 2026-08-02 02:08:28 |
| Status | C | ULS 1968706 | 2026-08-02 02:08:28 |
| Service | AF | ULS 1968706 | 2026-08-02 02:08:28 |
| Grant Date | 2005-01-11 | ULS 1968706 | 2026-08-02 02:08:28 |
| Expiration Date | 2015-02-10 | ULS 1968706 | 2026-08-02 02:08:28 |
| Cancellation Date | 2006-02-06 | ULS 1968706 | 2026-08-02 02:08:28 |