Universal Licensing System
WRDB437
State of Maryland, MIEMSS
License details
| ULS identifier | 4135518 |
|---|
| Call sign | WRDB437 |
|---|
| Radio service | MW |
|---|
| Status | A |
|---|
| Grant date | 2019-03-19 |
|---|
| Expiration | 2029-03-19 |
|---|
| Frequency range | 6226.89 - 6256.54 MHz (2 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Newburg, CHARLES, MD |
|---|
| Coordinates | 38.3638611, -76.9765000 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:46:28 |
|---|
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 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
| 1 | 2 | FXO | 6256.54000000 | | | | | |
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 |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
| 1 | 2 | 6256.54000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | US Route 301 South, Newburg, CHARLES, MD | 38.36386111, -76.97650000 | 8.800 m | LTOWER | 106.000 m structure / 106.000 m overall | |
| 2 | R | | 38.44172222, -77.24919444 | 31.700 m | | | |
| 3 | R | | 38.29108333, -76.76808333 | 23.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | ANDREW CORPORATION PAR8-59W RF | | V | 41.0000 | 290.0000 | | |
| 1 | 2 | R | ANDREW CORPORATION PAR8-59W RF | | | 41.0000 | | | |
| 1 | 3 | R | ANDREW CORPORATION VHLP6-6WA | | | 39.3000 | | | |
| 2 | 1 | T | ANDREW CORPORATION VHLP6-6WA | | V | 39.3000 | 113.8000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-02-02 | WRDB437 | LIAUA |
| 2020-06-23 | WRDB437 | LETCNS |
| 2019-03-19 | WRDB437 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4135518 | 2026-08-02 02:46:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB437 | ULS 4135518 | 2026-08-02 02:46:28 |
| Status | A | ULS 4135518 | 2026-08-02 02:46:28 |
| Service | MW | ULS 4135518 | 2026-08-02 02:46:28 |
| Grant Date | 2019-03-19 | ULS 4135518 | 2026-08-02 02:46:28 |
| Expiration Date | 2029-03-19 | ULS 4135518 | 2026-08-02 02:46:28 |