Universal Licensing System
WRDB475
State of Maryland, MIEMSS
License details
| ULS identifier | 4135593 |
|---|
| Call sign | WRDB475 |
|---|
| Radio service | MW |
|---|
| Status | A |
|---|
| Grant date | 2019-03-19 |
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| Expiration | 2029-03-19 |
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| Frequency range | 6226.89 MHz |
|---|
| Locations | 2 |
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| Representative location | Waldorf, CHARLES, MD |
|---|
| Coordinates | 38.6177500, -76.9085556 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:25 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
| 1 | 1 | FXO | 6226.89000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
| 1 | 1 | 6226.89000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Waldorf Indstr. Park, 3470 Rockefeller Court, Waldorf, CHARLES, MD | 38.61775000, -76.90855556 | 58.200 m | LTOWER | 137.200 m structure / 143.300 m overall | |
| 2 | R | | 38.63580556, -76.75536111 | 61.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | ANDREW CORPORATION VHLP6-6WA | | H | 39.3000 | 81.4000 | | |
| 1 | 2 | R | ANDREW CORPORATION VHLP6-6WA | | | 39.3000 | | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-02-02 | WRDB475 | LIAUA |
| 2020-06-23 | WRDB475 | LETCNS |
| 2019-03-19 | WRDB475 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4135593 | 2026-08-02 02:46:25 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB475 | ULS 4135593 | 2026-08-02 02:46:25 |
| Status | A | ULS 4135593 | 2026-08-02 02:46:25 |
| Service | MW | ULS 4135593 | 2026-08-02 02:46:25 |
| Grant Date | 2019-03-19 | ULS 4135593 | 2026-08-02 02:46:25 |
| Expiration Date | 2029-03-19 | ULS 4135593 | 2026-08-02 02:46:25 |