Universal Licensing System
WQYD479
Leidos, Inc.
License details
| ULS identifier | 3842220 |
|---|
| Call sign | WQYD479 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2016-08-02 |
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| Expiration | 2022-03-28 |
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| Cancellation | 2022-05-28 |
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| Frequency range | 451.45 - 462.225 MHz (3 frequencies) |
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| Locations | 4 |
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| Representative location | CHANTILLY, LOUDOUN, VA |
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| Coordinates | 38.9506389, -77.4485556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:41 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.45000000 | | | 40.000000 | 40.000000 | |
| 3 | 1 | MO | 456.45000000 | | | 5.000000 | 5.000000 | |
| 4 | 1 | MO | 456.45000000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | FB2 | 462.22500000 | | | 40.000000 | 40.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.45000000 | | 7K60FXE |
| 3 | 1 | 456.45000000 | | 7K60FXE |
| 4 | 1 | 456.45000000 | | 7K60FXE |
| 2 | 1 | 462.22500000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 14550 AVION PKWY, CHANTILLY, LOUDOUN, VA | 38.95063889, -77.44855556 | 87.000 m | B | 30.000 m structure / 30.000 m overall | |
| 2 | | 9221 CORPORATE BLVD, ROCKVILLE, MONTGOMERY, MD | 39.10377778, -77.18461111 | 448.000 m | B | 75.000 m structure / 75.000 m overall | |
| 3 | | LOUDOUN, VA | | | | | |
| 4 | | MONTGOMERY, MD | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 30.000 m | | | | 26.400 | |
| 1 | 2 | T | | 25.000 m | | | | 62.200 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2022-05-28 | WQYD479 | LIEXP |
| 2022-01-03 | WQYD479 | LETRES |
| 2020-05-15 | WQYD479 | LIAUA |
| 2018-12-28 | WQYD479 | LIASS |
| 2018-01-23 | WQYD479 | LIAUA |
| 2016-08-24 | WQYD479 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3842220 | 2026-08-02 01:25:41 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQYD479 | ULS 3842220 | 2026-08-02 01:25:41 |
| Status | E | ULS 3842220 | 2026-08-02 01:25:41 |
| Service | IG | ULS 3842220 | 2026-08-02 01:25:41 |
| Grant Date | 2016-08-02 | ULS 3842220 | 2026-08-02 01:25:41 |
| Expiration Date | 2022-03-28 | ULS 3842220 | 2026-08-02 01:25:41 |
| Cancellation Date | 2022-05-28 | ULS 3842220 | 2026-08-02 01:25:41 |