Universal Licensing System
WRDT945
LOUDOUN COUNTY PUBLIC SCHOOLS
License details
| ULS identifier | 4181116 |
|---|
| Call sign | WRDT945 |
|---|
| Radio service | YW |
|---|
| Status | A |
|---|
| Grant date | 2019-07-19 |
|---|
| Expiration | 2029-07-19 |
|---|
| Frequency range | 453.5125 - 458.875 MHz (7 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | PURCELLVILLE, LOUDOUN, VA |
|---|
| Coordinates | 39.1591111, -77.7274167 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:11:13 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | FB8 | 453.18750000 | | | 3.300000 | 30.000000 | |
| 5 | 1 | FB8 | 453.18750000 | | | 3.400000 | 40.100000 | |
| 7 | 1 | FB8 | 453.18750000 | | | 5.000000 | 40.000000 | |
| 10 | 1 | FB8 | 453.18750000 | | | 10.000000 | 60.000000 | |
| 1 | 1 | FB2 | 453.36250000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 453.36250000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | FB8 | 453.51250000 | | | 3.300000 | 30.000000 | |
| 5 | 1 | FB8 | 453.51250000 | | | 3.400000 | 40.100000 | |
| 7 | 1 | FB8 | 453.51250000 | | | 5.000000 | 40.000000 | |
| 10 | 1 | FB8 | 453.51250000 | | | 10.000000 | 60.000000 | |
| 3 | 1 | FB8 | 453.67500000 | | | 3.300000 | 30.000000 | |
| 5 | 1 | FB8 | 453.67500000 | | | 3.400000 | 40.100000 | |
| 7 | 1 | FB8 | 453.67500000 | | | 5.000000 | 40.000000 | |
| 10 | 1 | FB8 | 453.67500000 | | | 10.000000 | 60.000000 | |
| 1 | 1 | FB2 | 453.76250000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | FB8 | 453.87500000 | | | 3.300000 | 30.000000 | |
| 5 | 1 | FB8 | 453.87500000 | | | 3.400000 | 40.100000 | |
| 7 | 1 | FB8 | 453.87500000 | | | 5.000000 | 40.000000 | |
| 10 | 1 | FB8 | 453.87500000 | | | 10.000000 | 60.000000 | |
| 4 | 1 | MO8 | 458.18750000 | | | 45.000000 | 45.000000 | |
| 6 | 1 | MO8 | 458.18750000 | | | 45.000000 | 45.000000 | |
| 8 | 1 | MO8 | 458.18750000 | | | 45.000000 | 45.000000 | |
| 9 | 1 | FX1 | 458.18750000 | | | 45.000000 | 45.000000 | |
| 11 | 1 | MO8 | 458.18750000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 458.36250000 | | | 4.000000 | 4.000000 | |
| 4 | 1 | MO8 | 458.51250000 | | | 45.000000 | 45.000000 | |
| 6 | 1 | MO8 | 458.51250000 | | | 45.000000 | 45.000000 | |
| 8 | 1 | MO8 | 458.51250000 | | | 45.000000 | 45.000000 | |
| 9 | 1 | FX1 | 458.51250000 | | | 45.000000 | 45.000000 | |
| 11 | 1 | MO8 | 458.51250000 | | | 45.000000 | 45.000000 | |
| 4 | 1 | MO8 | 458.67500000 | | | 45.000000 | 45.000000 | |
| 6 | 1 | MO8 | 458.67500000 | | | 45.000000 | 45.000000 | |
| 8 | 1 | MO8 | 458.67500000 | | | 45.000000 | 45.000000 | |
| 9 | 1 | FX1 | 458.67500000 | | | 45.000000 | 45.000000 | |
| 11 | 1 | MO8 | 458.67500000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 458.76250000 | | | 4.000000 | 4.000000 | |
| 4 | 1 | MO8 | 458.87500000 | | | 45.000000 | 45.000000 | |
| 6 | 1 | MO8 | 458.87500000 | | | 45.000000 | 45.000000 | |
| 8 | 1 | MO8 | 458.87500000 | | | 45.000000 | 45.000000 | |
| 9 | 1 | FX1 | 458.87500000 | | | 45.000000 | 45.000000 | |
| 11 | 1 | MO8 | 458.87500000 | | | 45.000000 | 45.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 453.18750000 | | 9K80D7W |
| 5 | 1 | 453.18750000 | | 9K80D7W |
| 7 | 1 | 453.18750000 | | 9K80D7W |
| 10 | 1 | 453.18750000 | | 9K80D7W |
| 1 | 1 | 453.36250000 | | 7K60FXD |
| 1 | 1 | 453.36250000 | | 7K60FXE |
| 2 | 1 | 453.36250000 | | 7K60FXD |
| 2 | 1 | 453.36250000 | | 7K60FXE |
| 3 | 1 | 453.51250000 | | 9K80D7W |
| 5 | 1 | 453.51250000 | | 9K80D7W |
| 7 | 1 | 453.51250000 | | 9K80D7W |
| 10 | 1 | 453.51250000 | | 9K80D7W |
| 3 | 1 | 453.67500000 | | 9K80D7W |
| 5 | 1 | 453.67500000 | | 9K80D7W |
| 7 | 1 | 453.67500000 | | 9K80D7W |
| 10 | 1 | 453.67500000 | | 9K80D7W |
| 1 | 1 | 453.76250000 | | 7K60FXE |
| 1 | 1 | 453.76250000 | | 7K60FXD |
| 3 | 1 | 453.87500000 | | 9K80D7W |
| 5 | 1 | 453.87500000 | | 9K80D7W |
| 7 | 1 | 453.87500000 | | 9K80D7W |
| 10 | 1 | 453.87500000 | | 9K80D7W |
| 4 | 1 | 458.18750000 | | 8K10F1W |
| 6 | 1 | 458.18750000 | | 8K10F1W |
| 8 | 1 | 458.18750000 | | 8K10F1W |
| 9 | 1 | 458.18750000 | | 8K10F1W |
| 11 | 1 | 458.18750000 | | 8K10F1W |
| 2 | 1 | 458.36250000 | | 7K60FXE |
| 2 | 1 | 458.36250000 | | 7K60FXD |
| 4 | 1 | 458.51250000 | | 8K10F1W |
| 6 | 1 | 458.51250000 | | 8K10F1W |
| 8 | 1 | 458.51250000 | | 8K10F1W |
| 9 | 1 | 458.51250000 | | 8K10F1W |
| 11 | 1 | 458.51250000 | | 8K10F1W |
| 4 | 1 | 458.67500000 | | 8K10F1W |
| 6 | 1 | 458.67500000 | | 8K10F1W |
| 8 | 1 | 458.67500000 | | 8K10F1W |
| 9 | 1 | 458.67500000 | | 8K10F1W |
| 11 | 1 | 458.67500000 | | 8K10F1W |
| 2 | 1 | 458.76250000 | | 7K60FXD |
| 2 | 1 | 458.76250000 | | 7K60FXE |
| 4 | 1 | 458.87500000 | | 8K10F1W |
| 6 | 1 | 458.87500000 | | 8K10F1W |
| 8 | 1 | 458.87500000 | | 8K10F1W |
| 9 | 1 | 458.87500000 | | 8K10F1W |
| 11 | 1 | 458.87500000 | | 8K10F1W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 41025 COLLABORATION DR, ALDIE, LOUDOUN, VA | 38.92222222, -77.58166667 | 110.000 m | BTWR | 22.800 m structure / 29.500 m overall | |
| 2 | T | | | | | | |
| 3 | T | (092816) 1.6 MILES NORTH ON RAVENS ROCK ROAD, CHARLES TOWN, JEFFERSON, WV | 39.13791667, -77.83266667 | 411.200 m | LTOWER | 110.900 m structure / 115.500 m overall | N |
| 4 | T | | | | | | N |
| 5 | T | END OF SNIDER LN (006510), PURCELLVILLE, LOUDOUN, VA | 39.29552778, -77.70380556 | 392.000 m | GTOWER | 72.800 m structure / 78.000 m overall | N |
| 6 | T | | | | | | N |
| 7 | T | 319 E MARKET ST, LEESBURG, LOUDOUN, VA | 39.11166667, -77.55916667 | 106.400 m | LTOWER | 48.200 m structure / 55.500 m overall | N |
| 8 | T | | | | | | N |
| 9 | T | LOUDOUN, VA | | | | | N |
| 10 | T | 36811 ALLDER SCHOOL RD, PURCELLVILLE, LOUDOUN, VA | 39.15911111, -77.72741667 | 165.000 m | LTOWER | 50.300 m structure / 52.000 m overall | N |
| 11 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 29.500 m | | | | 24.500 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 57.900 m | V | 12.9000 | 150.0000 | 275.300 | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | 30.500 m | V | 12.9000 | 145.0000 | 256.200 | |
| 1 | 6 | T | | | | | | | |
| 1 | 7 | T | | 38.100 m | V | 10.9000 | 160.0000 | 28.600 | |
| 1 | 8 | T | | | | | | | |
| 1 | 9 | T | | | | | | | |
| 1 | 10 | T | | 29.300 m | V | 8.0000 | 10.0000 | 20.600 | |
| 1 | 11 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 42000 LOUDOUN CENTER PLACE, LEESBURG, VA | LOUDOUN | 7037716480 |
License history
| Date | File or call sign | Action |
|---|
| 2025-04-11 | WRDT945 | LIAUA |
| 2024-12-05 | WRDT945 | LIMOD |
| 2022-08-09 | WRDT945 | LIMOD |
| 2022-06-29 | WRDT945 | LIMOD |
| 2022-04-15 | WRDT945 | LIMOD |
| 2020-04-21 | WRDT945 | LETCNS |
| 2019-07-19 | WRDT945 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4181116 | 2026-08-02 01:11:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDT945 | ULS 4181116 | 2026-08-02 01:11:13 |
| Status | A | ULS 4181116 | 2026-08-02 01:11:13 |
| Service | YW | ULS 4181116 | 2026-08-02 01:11:13 |
| Grant Date | 2019-07-19 | ULS 4181116 | 2026-08-02 01:11:13 |
| Expiration Date | 2029-07-19 | ULS 4181116 | 2026-08-02 01:11:13 |