Universal Licensing System
KNNN597
CHIEF OILFIELD SERVICES
License details
| ULS identifier | 1633220 |
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| Call sign | KNNN597 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1996-03-26 |
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| Expiration | 2001-03-26 |
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| Cancellation | 2001-05-27 |
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| Frequency range | 463.6 - 468.6 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | STINNETT, HUTCHINSON, TX |
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| Coordinates | 35.8264167, -101.4512778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:14 |
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Licensee
| Name | CHIEF OILFIELD SERVICES |
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| Applicant type | C |
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| FRN | 0001650936 |
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| Location | STINNETT, TX |
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| Address | STINNETT, TX, 79083 |
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| Phone | 8068783804 |
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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 | FB2 | 463.60000000 | | | 75.000000 | 156.000000 | |
| 3 | 1 | MO | 463.60000000 | | | 40.000000 | | |
| 3 | 1 | MO | 463.60000000 | | | 4.000000 | | |
| 2 | 1 | FX1 | 468.60000000 | | | 25.000000 | | |
| 3 | 1 | MO | 468.60000000 | | | 4.000000 | | |
| 3 | 1 | MO | 468.60000000 | | | 40.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.60000000 | | 20K0F3E |
| 3 | 1 | 463.60000000 | | 20K0F3E |
| 3 | 1 | 463.60000000 | | 20K0F3E |
| 2 | 1 | 468.60000000 | | 20K0F3E |
| 3 | 1 | 468.60000000 | | 20K0F3E |
| 3 | 1 | 468.60000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1 MI S ON HWY 136, STINNETT, HUTCHINSON, TX | 35.82641667, -101.45127778 | 981.000 m | TOWER | 46.000 m structure / 51.000 m overall | N |
| 2 | T | TX | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 51.000 m | | | | 85.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 200 W 13TH, STINNETT, TX | | 8068783804 |
License history
| Date | File or call sign | Action |
|---|
| 2001-05-27 | KNNN597 | LIEXP |
| 2001-01-01 | KNNN597 | LETRES |
| 2000-11-23 | KNNN597 | LICCNV |
| 1996-03-28 | KNNN597 | AUTHPR |
| 1996-03-26 | KNNN597 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1633220 | 2026-08-02 01:13:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNN597 | ULS 1633220 | 2026-08-02 01:13:14 |
| Status | E | ULS 1633220 | 2026-08-02 01:13:14 |
| Service | IG | ULS 1633220 | 2026-08-02 01:13:14 |
| Grant Date | 1996-03-26 | ULS 1633220 | 2026-08-02 01:13:14 |
| Expiration Date | 2001-03-26 | ULS 1633220 | 2026-08-02 01:13:14 |
| Cancellation Date | 2001-05-27 | ULS 1633220 | 2026-08-02 01:13:14 |