Universal Licensing System
WRDK900
Sprint Spectrum, L.P.
License details
| ULS identifier | 4162881 |
|---|
| Call sign | WRDK900 |
|---|
| Radio service | CF |
|---|
| Status | C |
|---|
| Grant date | 2019-05-22 |
|---|
| Expiration | 2029-05-22 |
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| Cancellation | 2020-10-26 |
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| Frequency range | 21925 - 21975 MHz (2 frequencies) |
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| Locations | 2 |
|---|
| Representative location | Davis, YOLO, CA |
|---|
| Coordinates | 38.5503333, -121.7185278 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:00 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 1 | FXO | 21925.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
| 1 | 2 | FXO | 21975.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0D7W |
| 1 | 1 | 21925.00000000 | | 50M0G7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0D7W |
| 1 | 2 | 21975.00000000 | | 50M0G7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2727 2nd St, Davis, YOLO, CA | 38.55033333, -121.71852778 | 12.000 m | MTOWER | 21.300 m structure / 21.300 m overall | |
| 2 | R | | 38.58888889, -121.72611111 | 10.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RFS SC2-220BIPN | | V | 41.0000 | 351.2000 | | |
| 1 | 2 | R | RFS SB1-220CIPN | | | 35.8000 | | | |
| 2 | 1 | T | RFS SC2-220BIPN | | H | 41.0000 | 351.2000 | | |
| 2 | 2 | R | RFS SB1-220CIPN | | | 35.8000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2020-10-27 | WRDK900 | LICAN |
| 2020-08-25 | WRDK900 | LETCNS |
| 2020-04-01 | WRDK900 | LITRAN |
| 2019-05-22 | WRDK900 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4162881 | 2026-08-02 02:47:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDK900 | ULS 4162881 | 2026-08-02 02:47:00 |
| Status | C | ULS 4162881 | 2026-08-02 02:47:00 |
| Service | CF | ULS 4162881 | 2026-08-02 02:47:00 |
| Grant Date | 2019-05-22 | ULS 4162881 | 2026-08-02 02:47:00 |
| Expiration Date | 2029-05-22 | ULS 4162881 | 2026-08-02 02:47:00 |
| Cancellation Date | 2020-10-26 | ULS 4162881 | 2026-08-02 02:47:00 |