Universal Licensing System
KNJK581
Houston, City of - ITD
License details
| ULS identifier | 1215243 |
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| Call sign | KNJK581 |
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| Radio service | PW |
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| Status | C |
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| Grant date | 2002-08-14 |
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| Expiration | 2012-11-02 |
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| Cancellation | 2011-04-22 |
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| Frequency range | 458.425 MHz |
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| Locations | 1 |
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| Representative location | HOUSTON, HARRIS, TX |
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| Coordinates | 29.6424444, -95.2796667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:18:49 |
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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 | FX1 | 458.42500000 | | | 15.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 458.42500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | WM C HOBBY AIRPORT FIRE STATION NO 81, HOUSTON, HARRIS, TX | 29.64244444, -95.27966667 | 14.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 7.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | WM C HOBBY AIRPORT FIRE STATION NO 81, HOUSTON, TX | | 7132471837 |
License history
| Date | File or call sign | Action |
|---|
| 2011-04-23 | KNJK581 | LICAN |
| 2010-12-07 | KNJK581 | LIAUA |
| 2010-12-06 | KNJK581 | ESCAPR |
| 2010-12-06 | KNJK581 | ESCFRN |
| 2010-05-06 | KNJK581 | LTSFND |
| 2004-02-28 | KNJK581 | LIAUA |
| 2002-08-14 | KNJK581 | LIREN |
| 2002-08-05 | KNJK581 | LETRES |
| 2002-01-24 | KNJK581 | AUDOPR |
| 2001-10-07 | KNJK581 | LIAUA |
| 2001-10-05 | KNJK581 | LIAUA |
| 2000-10-20 | KNJK581 | LICCNV |
| 1997-10-02 | KNJK581 | AUTHPR |
| 1997-10-02 | KNJK581 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1215243 | 2026-08-02 01:18:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNJK581 | ULS 1215243 | 2026-08-02 01:18:49 |
| Status | C | ULS 1215243 | 2026-08-02 01:18:49 |
| Service | PW | ULS 1215243 | 2026-08-02 01:18:49 |
| Grant Date | 2002-08-14 | ULS 1215243 | 2026-08-02 01:18:49 |
| Expiration Date | 2012-11-02 | ULS 1215243 | 2026-08-02 01:18:49 |
| Cancellation Date | 2011-04-22 | ULS 1215243 | 2026-08-02 01:18:49 |