Universal Licensing System
WRDB454
State of Maryland, MIEMSS
License details
| ULS identifier | 4135541 |
|---|
| Call sign | WRDB454 |
|---|
| Radio service | MW |
|---|
| Status | A |
|---|
| Grant date | 2019-03-19 |
|---|
| Expiration | 2029-03-19 |
|---|
| Frequency range | 6004.5 - 6063.8 MHz (2 frequencies) |
|---|
| Locations | 1 |
|---|
| Coordinates | 38.3340556, -76.6793611 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:46:42 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 1 | FXO | 6004.50000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
| 1 | 2 | FXO | 6063.80000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 1 | 6004.50000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
| 1 | 2 | 6063.80000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Bushwood Md., Bushwood, ST. MARY'S, MD | 38.29108333, -76.76808333 | 23.000 m | LTOWER | 100.000 m structure / 106.000 m overall | |
| 2 | R | | 38.36386111, -76.97650000 | 8.800 m | | | |
| 3 | R | | 38.33405556, -76.67936111 | 41.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | ANDREW CORPORATION VHLP6-6WA | | V | 39.3000 | 294.0000 | | |
| 1 | 2 | R | ANDREW CORPORATION VHLP6-6WA | | | 39.3000 | | | |
| 1 | 3 | R | ANDREW CORPORATION VHLP6-6WA | | | 39.3000 | | | |
| 2 | 1 | T | ANDREW CORPORATION VHLP6-6WA | | V | 39.3000 | 58.4000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2021-02-02 | WRDB454 | LIAUA |
| 2020-06-23 | WRDB454 | LETCNS |
| 2019-03-19 | WRDB454 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4135541 | 2026-08-02 02:46:42 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB454 | ULS 4135541 | 2026-08-02 02:46:42 |
| Status | A | ULS 4135541 | 2026-08-02 02:46:42 |
| Service | MW | ULS 4135541 | 2026-08-02 02:46:42 |
| Grant Date | 2019-03-19 | ULS 4135541 | 2026-08-02 02:46:42 |
| Expiration Date | 2029-03-19 | ULS 4135541 | 2026-08-02 02:46:42 |