Universal Licensing System
WRMM993
MICROSOFT CORPORATION
License details
| ULS identifier | 4444643 |
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| Call sign | WRMM993 |
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| Radio service | YG |
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| Status | A |
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| Grant date | 2021-05-05 |
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| Expiration | 2031-05-05 |
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| Frequency range | 463.8875 - 469.0625 MHz (5 frequencies) |
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| Locations | 3 |
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| Representative location | Leesburg, LOUDOUN, VA |
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| Coordinates | 39.0757222, -77.5630278 |
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| Source archive | l_LMpriv.zip |
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| 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 | 463.38750000 | | | 45.000000 | 45.000000 | |
| 1 | 1 | FB2 | 463.88750000 | | | 45.000000 | 45.000000 | |
| 1 | 1 | FB2 | 464.06250000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 468.38750000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 468.38750000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 468.88750000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 468.88750000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 469.06250000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | FX1 | 469.06250000 | | | 45.000000 | 45.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.38750000 | | 7K60F1W |
| 1 | 1 | 463.38750000 | | 7K60F7W |
| 1 | 1 | 463.88750000 | | 7K60F7W |
| 1 | 1 | 463.88750000 | | 7K60F1W |
| 1 | 1 | 464.06250000 | | 7K60F1W |
| 1 | 1 | 464.06250000 | | 7K60F7W |
| 2 | 1 | 468.38750000 | | 7K60F1W |
| 2 | 1 | 468.38750000 | | 7K60F7W |
| 3 | 1 | 468.38750000 | | 7K60F7W |
| 3 | 1 | 468.38750000 | | 7K60F1W |
| 2 | 1 | 468.88750000 | | 7K60F1W |
| 2 | 1 | 468.88750000 | | 7K60F7W |
| 3 | 1 | 468.88750000 | | 7K60F1W |
| 3 | 1 | 468.88750000 | | 7K60F7W |
| 2 | 1 | 469.06250000 | | 7K60F7W |
| 2 | 1 | 469.06250000 | | 7K60F1W |
| 3 | 1 | 469.06250000 | | 7K60F7W |
| 3 | 1 | 469.06250000 | | 7K60F1W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 19540 Compass Creek Pky, Leesburg, LOUDOUN, VA | 39.07572222, -77.56302778 | 113.000 m | BANT | 11.300 m structure / 13.100 m overall | |
| 2 | T | | | | | | |
| 3 | T | LOUDOUN, VA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 13.100 m | | | | 11.700 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 19540 Compass Creek Pkwy, Leesburg, VA | LOUDOUN | 4259367558 |
License history
| Date | File or call sign | Action |
|---|
| 2021-05-05 | WRMM993 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4444643 | 2026-08-02 01:25:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMM993 | ULS 4444643 | 2026-08-02 01:25:13 |
| Status | A | ULS 4444643 | 2026-08-02 01:25:13 |
| Service | YG | ULS 4444643 | 2026-08-02 01:25:13 |
| Grant Date | 2021-05-05 | ULS 4444643 | 2026-08-02 01:25:13 |
| Expiration Date | 2031-05-05 | ULS 4444643 | 2026-08-02 01:25:13 |