Universal Licensing System
KNL57
AT&T COMMUNICATIONS OF CALIFORNIA INC
License details
| ULS identifier | 962452 |
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| Call sign | KNL57 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1996-02-20 |
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| Expiration | 2000-02-01 |
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| Cancellation | 1999-12-02 |
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| Frequency range | 10715 - 10995 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | TWENTYNINE PALMS, RIVERSIDE, CA |
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| Coordinates | 34.0011111, -115.9983056 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:44:24 |
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Licensee
| Name | AT&T COMMUNICATIONS OF CALIFORNIA INC |
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| Applicant type | C |
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| FRN | 0003301702 |
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| Location | ATLANTA, GA |
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| Address | 1200 PEACHTREE ST 15W27, ATLANTA, GA, 30309 |
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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 | 2 | FXO | 10715.00000000 | | | | | |
| 1 | 1 | FXO | 10755.00000000 | | | | | |
| 1 | 3 | FXO | 10955.00000000 | | | | | |
| 1 | 4 | FXO | 10995.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 10715.00000000 | | 28M0F8W |
| 1 | 1 | 10755.00000000 | | 28M0F8W |
| 1 | 3 | 10955.00000000 | | 28M0F8W |
| 1 | 4 | 10995.00000000 | | 28M0F8W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9.8 MILES SSE OF, TWENTYNINE PALMS, RIVERSIDE, CA | 34.00111111, -115.99830556 | 1399.000 m | | 55.800 m overall | |
| 2 | R | | 34.08166667, -116.34305556 | 1490.500 m | | | |
| 3 | R | | 34.23944444, -115.72025000 | 742.200 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 48.0000 | 44.1000 | | |
| 1 | 2 | R | | | | 48.0000 | | | |
| 1 | 3 | R | | | | 48.0000 | | | |
| 2 | 1 | T | | | H | 48.0000 | 285.8000 | | |
| 2 | 2 | R | | | | 48.0000 | | | |
| 2 | 3 | R | | | | 48.0000 | | | |
| 3 | 1 | T | | | V | 48.0000 | 285.8000 | | |
| 4 | 1 | T | | | H | 48.0000 | 44.1000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-12-03 | KNL57 | LICAN |
| 1999-11-06 | KNL57 | LETRES |
| 1999-08-13 | KNL57 | LICCNV |
| 1998-05-19 | KNL57 | COR |
| 1990-05-17 | KNL57 | LIMOD |
| 1990-01-16 | KNL57 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 962452 | 2026-08-02 02:44:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KNL57 | ULS 962452 | 2026-08-02 02:44:24 |
| Status | C | ULS 962452 | 2026-08-02 02:44:24 |
| Service | CF | ULS 962452 | 2026-08-02 02:44:24 |
| Grant Date | 1996-02-20 | ULS 962452 | 2026-08-02 02:44:24 |
| Expiration Date | 2000-02-01 | ULS 962452 | 2026-08-02 02:44:24 |
| Cancellation Date | 1999-12-02 | ULS 962452 | 2026-08-02 02:44:24 |