Universal Licensing System
KAO57
AT&T CORP
License details
| ULS identifier | 955724 |
|---|
| Call sign | KAO57 |
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| Radio service | CF |
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| Status | C |
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| Grant date | 1994-12-19 |
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| Expiration | 2000-02-01 |
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| Cancellation | 1998-01-27 |
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| Frequency range | 6004.5 - 6063.8 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | FAIRFIELD, JEFFERSON, IA |
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| Coordinates | 41.1036111, -92.0573889 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:38 |
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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 | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6004.50000000 | | 30M0A7W |
| 1 | 2 | 6004.50000000 | | 30M0A7W |
| 1 | 1 | 6063.80000000 | | 30M0A7W |
| 1 | 2 | 6063.80000000 | | 30M0A7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9 MI NW OF, FAIRFIELD, JEFFERSON, IA | 41.10361111, -92.05738889 | 246.900 m | | 104.500 m overall | |
| 2 | R | | 41.20166667, -91.48652778 | 222.500 m | | | |
| 3 | R | | 40.96444444, -92.60183333 | 275.500 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | H | 43.0000 | 77.0000 | | |
| 1 | 2 | R | | | | 43.0000 | | | |
| 1 | 3 | R | | | | 43.0000 | | | |
| 2 | 1 | T | | | V | 43.0000 | 251.5000 | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | KAO57 | LICCNV |
| 1998-01-27 | KAO57 | LICAN |
| 1990-01-16 | KAO57 | LIREN |
| 1989-02-01 | KAO57 | LIMOD |
| 1988-02-29 | KAO57 | LIMOD |
| 1987-02-25 | KAO57 | LIMOD |
| 1986-02-27 | KAO57 | LIMOD |
| 1985-02-14 | KAO57 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 955724 | 2026-08-02 02:47:38 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KAO57 | ULS 955724 | 2026-08-02 02:47:38 |
| Status | C | ULS 955724 | 2026-08-02 02:47:38 |
| Service | CF | ULS 955724 | 2026-08-02 02:47:38 |
| Grant Date | 1994-12-19 | ULS 955724 | 2026-08-02 02:47:38 |
| Expiration Date | 2000-02-01 | ULS 955724 | 2026-08-02 02:47:38 |
| Cancellation Date | 1998-01-27 | ULS 955724 | 2026-08-02 02:47:38 |