Universal Licensing System
WRDU644
PIMA COUNTY ARIZONA
License details
| ULS identifier | 4182437 |
|---|
| Call sign | WRDU644 |
|---|
| Radio service | MW |
|---|
| Status | A |
|---|
| Grant date | 2019-07-23 |
|---|
| Expiration | 2029-07-23 |
|---|
| Frequency range | 11285 MHz |
|---|
| Locations | 2 |
|---|
| Representative location | Tucson, PIMA, AZ |
|---|
| Coordinates | 32.1311667, -110.9271667 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:44:44 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 11285.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 11285.00000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 6680 S Country Club Rd, Tucson, PIMA, AZ | 32.13116667, -110.92716667 | 796.600 m | B | 9.100 m structure / 9.100 m overall | |
| 2 | R | | 32.21402778, -111.00572222 | 946.100 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RFS SB4-W100C | | H | 40.1000 | 321.1000 | | |
| 1 | 2 | R | RFS SB4-W100C | | | 40.1000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-08-25 | WRDU644 | LIAUA |
| 2020-10-27 | WRDU644 | LETCNS |
| 2019-07-23 | WRDU644 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4182437 | 2026-08-02 02:44:44 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU644 | ULS 4182437 | 2026-08-02 02:44:44 |
| Status | A | ULS 4182437 | 2026-08-02 02:44:44 |
| Service | MW | ULS 4182437 | 2026-08-02 02:44:44 |
| Grant Date | 2019-07-23 | ULS 4182437 | 2026-08-02 02:44:44 |
| Expiration Date | 2029-07-23 | ULS 4182437 | 2026-08-02 02:44:44 |