Universal Licensing System
KNK21
AT&T CORP
License details
| ULS identifier | 962389 |
|---|
| Call sign | KNK21 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1987-02-03 |
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| Expiration | 1998-01-28 |
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| Cancellation | 1998-01-28 |
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| Frequency range | 3750 - 4170 MHz (8 frequencies) |
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| Locations | 1 |
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| Coordinates | 34.2136111, -117.5008611 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:51 |
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Licensee
| Name | AT&T CORP |
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| Applicant type | C |
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| Location | ATLANTA, GA |
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| Address | 1200 PEACHTREE ST 15W24, ATLANTA, GA, 30309 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 3750.00000000 | | | | | |
| 1 | 2 | FXO | 3770.00000000 | | | | | |
| 1 | 3 | FXO | 3770.00000000 | | | | | |
| 1 | 2 | FXO | 3850.00000000 | | | | | |
| 1 | 3 | FXO | 3850.00000000 | | | | | |
| 1 | 4 | FXO | 3910.00000000 | | | | | |
| 1 | 2 | FXO | 3930.00000000 | | | | | |
| 1 | 3 | FXO | 3930.00000000 | | | | | |
| 1 | 2 | FXO | 4010.00000000 | | | | | |
| 1 | 2 | FXO | 4090.00000000 | | | | | |
| 1 | 3 | FXO | 4090.00000000 | | | | | |
| 1 | 2 | FXO | 4170.00000000 | | | | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 7.5 MILES SW OF, LUCERNE VALLEY, SAN BERNARDINO, CA | 34.38583333, -117.05752778 | 1679.100 m | | 30.500 m overall | |
| 2 | R | | 34.64886111, -116.53166667 | 1353.000 m | | | |
| 3 | R | | 34.21361111, -117.50086111 | 1724.600 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | | 58.7000 | | |
| 1 | 2 | R | | | | | | | |
| 1 | 3 | R | | | | | | | |
| 2 | 1 | T | | | V | | 245.0000 | | |
| 2 | 2 | R | | | | | | | |
| 2 | 3 | R | | | | | | | |
| 3 | 1 | T | | | V | | 58.7000 | | |
| 4 | 1 | T | | | H | | 245.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | KNK21 | LICCNV |
| 1998-01-28 | KNK21 | LICAN |
| 1987-02-03 | KNK21 | LIMOD |
| 1985-11-27 | KNK21 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 962389 | 2026-08-02 02:47:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNK21 | ULS 962389 | 2026-08-02 02:47:51 |
| Status | C | ULS 962389 | 2026-08-02 02:47:51 |
| Service | CF | ULS 962389 | 2026-08-02 02:47:51 |
| Grant Date | 1987-02-03 | ULS 962389 | 2026-08-02 02:47:51 |
| Expiration Date | 1998-01-28 | ULS 962389 | 2026-08-02 02:47:51 |
| Cancellation Date | 1998-01-28 | ULS 962389 | 2026-08-02 02:47:51 |