Universal Licensing System
WQXX751
Microsoft Corporation (MCIO)
License details
| ULS identifier | 3828608 |
|---|
| Call sign | WQXX751 |
|---|
| Radio service | YG |
|---|
| Status | A |
|---|
| Grant date | 2026-04-11 |
|---|
| Expiration | 2036-07-08 |
|---|
| Frequency range | 451.875 - 457.2375 MHz (6 frequencies) |
|---|
| Locations | 3 |
|---|
| Representative location | Sterling, LOUDOUN, VA |
|---|
| Coordinates | 39.0257500, -77.4145833 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:25:13 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.87500000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 451.87500000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | FB2 | 451.91250000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 451.91250000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | FB2 | 452.23750000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 452.23750000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 456.87500000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 456.87500000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 456.91250000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 456.91250000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 457.23750000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 457.23750000 | | | 40.000000 | 40.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.87500000 | | 7K60FXE |
| 1 | 1 | 451.87500000 | | 7K60FXD |
| 2 | 1 | 451.87500000 | | 7K60FXD |
| 2 | 1 | 451.87500000 | | 7K60FXE |
| 1 | 1 | 451.91250000 | | 7K60FXD |
| 1 | 1 | 451.91250000 | | 7K60FXE |
| 2 | 1 | 451.91250000 | | 7K60FXD |
| 2 | 1 | 451.91250000 | | 7K60FXE |
| 1 | 1 | 452.23750000 | | 7K60FXE |
| 1 | 1 | 452.23750000 | | 7K60FXD |
| 2 | 1 | 452.23750000 | | 7K60FXD |
| 2 | 1 | 452.23750000 | | 7K60FXE |
| 2 | 1 | 456.87500000 | | 7K60FXD |
| 2 | 1 | 456.87500000 | | 7K60FXE |
| 3 | 1 | 456.87500000 | | 7K60FXE |
| 3 | 1 | 456.87500000 | | 7K60FXD |
| 2 | 1 | 456.91250000 | | 7K60FXD |
| 2 | 1 | 456.91250000 | | 7K60FXE |
| 3 | 1 | 456.91250000 | | 7K60FXE |
| 3 | 1 | 456.91250000 | | 7K60FXD |
| 2 | 1 | 457.23750000 | | 7K60FXD |
| 2 | 1 | 457.23750000 | | 7K60FXE |
| 3 | 1 | 457.23750000 | | 7K60FXD |
| 3 | 1 | 457.23750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 21111 Ridgetop Circle, Sterling, LOUDOUN, VA | 39.02575000, -77.41458333 | 99.000 m | BANT | 9.100 m structure / 11.000 m overall | |
| 2 | T | | | | | | |
| 3 | T | VA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | 17.600 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 21111 Ridgetop Circle, Sterling, VA | LOUDOUN | 4257057975 |
License history
| Date | File or call sign | Action |
|---|
| 2026-04-11 | WQXX751 | LIREN |
| 2018-02-22 | WQXX751 | LIAUA |
| 2016-07-08 | WQXX751 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3828608 | 2026-08-02 01:25:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQXX751 | ULS 3828608 | 2026-08-02 01:25:13 |
| Status | A | ULS 3828608 | 2026-08-02 01:25:13 |
| Service | YG | ULS 3828608 | 2026-08-02 01:25:13 |
| Grant Date | 2026-04-11 | ULS 3828608 | 2026-08-02 01:25:13 |
| Expiration Date | 2036-07-08 | ULS 3828608 | 2026-08-02 01:25:13 |