Universal Licensing System
WAT681
IBM RESEARCH AND DEVELOPMENT INC
License details
| ULS identifier | 969315 |
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| Call sign | WAT681 |
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| Radio service | MG |
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| Status | E |
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| Grant date | 1993-06-10 |
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| Expiration | 1998-06-10 |
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| Frequency range | 21825 - 23125 MHz (3 frequencies) |
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| Locations | 2 |
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| Representative location | ROCHESTER, OLMSTED, MN |
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| Coordinates | 44.0666111, -92.5040556 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:44 |
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Licensee
| Name | IBM RESEARCH AND DEVELOPMENT INC |
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| Applicant type | C |
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| Location | WHITE PLAINS, NY |
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| Address | 1311 MAMARONECK AVENUE, WHITE PLAINS, NY, 10605 |
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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 | FXO | 21825.00000000 | | | | | |
| 1 | 2 | FXO | 23025.00000000 | | | | | |
| 1 | 1 | FXO | 23125.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 21825.00000000 | | 16M0A9W |
| 1 | 2 | 23025.00000000 | | 16M0A9W |
| 1 | 1 | 23125.00000000 | | 16M0A9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4111 HWY 52N FRONTAGE RD, ROCHESTER, OLMSTED, MN | 44.06661111, -92.50405556 | 320.000 m | | 8.500 m structure / 11.600 m overall | |
| 2 | R | | 44.05911111, -92.50461111 | 329.200 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | 34.0000 | 183.1000 | | |
| 1 | 2 | R | | | | 34.0000 | | | |
| 2 | 1 | T | | | H | 34.0000 | 183.1000 | | |
| 2 | 2 | R | | | | 34.0000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 1999-08-13 | WAT681 | LICCNV |
| 1997-12-17 | WAT681 | COR |
| 1997-07-09 | WAT681 | COR |
| 1993-06-10 | WAT681 | LIMOD |
| 1993-05-01 | WAT681 | LIMOD |
| 1988-05-03 | WAT681 | LIMOD |
| 1983-05-27 | WAT681 | LIMOD |
| 1983-04-29 | WAT681 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 969315 | 2026-08-02 02:47:44 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WAT681 | ULS 969315 | 2026-08-02 02:47:44 |
| Status | E | ULS 969315 | 2026-08-02 02:47:44 |
| Service | MG | ULS 969315 | 2026-08-02 02:47:44 |
| Grant Date | 1993-06-10 | ULS 969315 | 2026-08-02 02:47:44 |
| Expiration Date | 1998-06-10 | ULS 969315 | 2026-08-02 02:47:44 |