Universal Licensing System
KNHW643
AMOCO OIL COMPANY
License details
| ULS identifier | 1838261 |
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| Call sign | KNHW643 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 1998-12-14 |
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| Expiration | 2003-12-14 |
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| Cancellation | 2002-08-22 |
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| Frequency range | 451.6 - 456.6 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | CASPER, NATRONA, WY |
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| Coordinates | 42.7499722, -106.3172500 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:33 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB2 | 451.60000000 | | | 110.000000 | 874.000000 | |
| 3 | 1 | MO | 451.60000000 | | | 35.000000 | 80.000000 | |
| 1 | 1 | FX1 | 456.60000000 | | | 20.000000 | 40.000000 | |
| 3 | 1 | MO | 456.60000000 | | | 35.000000 | 80.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.60000000 | | 20K0F3E |
| 3 | 1 | 451.60000000 | | 20K0F3E |
| 1 | 1 | 456.60000000 | | 20K0F3E |
| 3 | 1 | 456.60000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | WY | | | | | |
| 2 | T | CASPER MTN 6 MI SE, CASPER, NATRONA, WY | 42.74997222, -106.31725000 | 2439.000 m | | | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 30.000 m | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | AMOCO CASPER REFINERY UTILITY BLDG, CASPER, WY | | 3072653390 |
License history
| Date | File or call sign | Action |
|---|
| 2002-08-23 | KNHW643 | LICAN |
| 2002-04-25 | KNHW643 | AUDOPR |
| 2001-07-10 | KNHW643 | LIAUA |
| 2000-11-23 | KNHW643 | LICCNV |
| 1998-12-23 | KNHW643 | AUTHPR |
| 1998-11-03 | KNHW643 | LITRAN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1838261 | 2026-08-02 01:13:33 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNHW643 | ULS 1838261 | 2026-08-02 01:13:33 |
| Status | C | ULS 1838261 | 2026-08-02 01:13:33 |
| Service | IG | ULS 1838261 | 2026-08-02 01:13:33 |
| Grant Date | 1998-12-14 | ULS 1838261 | 2026-08-02 01:13:33 |
| Expiration Date | 2003-12-14 | ULS 1838261 | 2026-08-02 01:13:33 |
| Cancellation Date | 2002-08-22 | ULS 1838261 | 2026-08-02 01:13:33 |