Universal Licensing System
WRDB449
State of Maryland, MIEMSS
License details
| ULS identifier | 4135535 |
|---|
| Call sign | WRDB449 |
|---|
| Radio service | MW |
|---|
| Status | A |
|---|
| Grant date | 2019-03-19 |
|---|
| Expiration | 2029-03-19 |
|---|
| Frequency range | 11385 MHz |
|---|
| Locations | 2 |
|---|
| Coordinates | 39.1845556, -77.2498056 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:46:25 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 1 | FXO | 6845.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 4 | FXO | 11385.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
| 1 | 3 | FXO | 11425.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 1 | 6845.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 4 | 11385.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
| 1 | 3 | 11425.00000000 | | 30M0D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 8520 PLEASANT RD, GAITHERSBURG, MONTGOMERY, MD | 39.11983333, -77.17941667 | 169.200 m | LTOWER | 76.200 m structure / 82.300 m overall | N |
| 2 | R | | 39.26055556, -77.31211111 | 156.300 m | | | |
| 4 | R | | 39.18455556, -77.24980556 | 160.000 m | | | |
| 5 | R | | 39.08316667, -77.14941667 | 133.500 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 | 323.8000 | | |
| 1 | 2 | R | ANDREW CORPORATION VHLP6-6WA | | | 39.3000 | | | |
| 1 | 4 | R | RFS SB4-W100D | | | 40.1000 | 0.0000 | | |
| 1 | 5 | R | RFS SC3-W100A | | | 38.3000 | 0.0000 | | |
| 3 | 1 | T | RFS SC3-W100A | | V | 38.3000 | 319.8000 | | |
| 4 | 1 | T | RFS SC3-W100A | | V | 38.3000 | 147.5000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2022-11-28 | WRDB449 | LIMOD |
| 2021-08-27 | WRDB449 | FRATRE |
| 2021-06-30 | WRDB449 | PNLISR |
| 2021-06-30 | WRDB449 | LETTRS |
| 2021-06-16 | WRDB449 | LIMOD |
| 2021-02-23 | WRDB449 | LETCNS |
| 2021-02-02 | WRDB449 | LIAUA |
| 2021-01-05 | WRDB449 | AUTHPR |
| 2021-01-03 | WRDB449 | LOATRM |
| 2021-01-03 | WRDB449 | ANATRM |
| 2021-01-03 | WRDB449 | FRATRM |
| 2021-01-03 | WRDB449 | PAATRM |
| 2020-10-28 | WRDB449 | LETTRS |
| 2020-10-28 | WRDB449 | PNLISR |
| 2020-06-23 | WRDB449 | LETCNS |
| 2019-11-25 | WRDB449 | LIMOD |
| 2019-03-19 | WRDB449 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4135535 | 2026-08-02 02:46:25 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDB449 | ULS 4135535 | 2026-08-02 02:46:25 |
| Status | A | ULS 4135535 | 2026-08-02 02:46:25 |
| Service | MW | ULS 4135535 | 2026-08-02 02:46:25 |
| Grant Date | 2019-03-19 | ULS 4135535 | 2026-08-02 02:46:25 |
| Expiration Date | 2029-03-19 | ULS 4135535 | 2026-08-02 02:46:25 |