Universal Licensing System
WPLW581
Microsoft
License details
| ULS identifier | 1788894 |
|---|
| Call sign | WPLW581 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2023-03-24 |
|---|
| Expiration | 2033-03-23 |
|---|
| Frequency range | 451.2375 - 456.4625 MHz (7 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | Redmond, KING, WA |
|---|
| Coordinates | 47.6401111, -122.1344444 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:25:12 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 451.23750000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 451.23750000 | | | 2.000000 | 2.000000 | |
| 4 | 1 | FB2 | 451.23750000 | | | 20.000000 | 20.000000 | |
| 5 | 1 | MO | 451.23750000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 451.31250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 451.31250000 | | | 2.000000 | 2.000000 | |
| 4 | 1 | FB2 | 451.31250000 | | | 20.000000 | 20.000000 | |
| 5 | 1 | MO | 451.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.33750000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 451.33750000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 451.33750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 451.41250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 451.41250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 451.41250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 451.46250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 451.46250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 451.46250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.23750000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 456.23750000 | | | 2.000000 | 2.000000 | |
| 5 | 1 | MO | 456.23750000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.31250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 456.31250000 | | | 2.000000 | 2.000000 | |
| 5 | 1 | MO | 456.31250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.33750000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.33750000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 456.33750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.41250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.41250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 456.41250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.46250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.46250000 | | | 2.000000 | 2.000000 | |
| 3 | 1 | MO | 456.46250000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.23750000 | | 11K2F3E |
| 2 | 1 | 451.23750000 | | 7K60FXE |
| 2 | 1 | 451.23750000 | | 7K60FXD |
| 3 | 1 | 451.23750000 | | 7K60FXE |
| 3 | 1 | 451.23750000 | | 11K2F3E |
| 3 | 1 | 451.23750000 | | 7K60FXD |
| 4 | 1 | 451.23750000 | | 7K60FXD |
| 4 | 1 | 451.23750000 | | 11K2F3E |
| 4 | 1 | 451.23750000 | | 7K60FXE |
| 5 | 1 | 451.23750000 | | 11K2F3E |
| 5 | 1 | 451.23750000 | | 7K60FXE |
| 5 | 1 | 451.23750000 | | 7K60FXD |
| 2 | 1 | 451.31250000 | | 11K2F3E |
| 2 | 1 | 451.31250000 | | 7K60FXD |
| 2 | 1 | 451.31250000 | | 7K60FXE |
| 3 | 1 | 451.31250000 | | 7K60FXE |
| 3 | 1 | 451.31250000 | | 7K60FXD |
| 3 | 1 | 451.31250000 | | 11K2F3E |
| 4 | 1 | 451.31250000 | | 7K60FXE |
| 4 | 1 | 451.31250000 | | 11K2F3E |
| 4 | 1 | 451.31250000 | | 7K60FXD |
| 5 | 1 | 451.31250000 | | 7K60FXD |
| 5 | 1 | 451.31250000 | | 7K60FXE |
| 5 | 1 | 451.31250000 | | 11K2F3E |
| 1 | 1 | 451.33750000 | | 7K60FXE |
| 1 | 1 | 451.33750000 | | 7K60FXD |
| 1 | 1 | 451.33750000 | | 11K2F3E |
| 2 | 1 | 451.33750000 | | 7K60FXE |
| 2 | 1 | 451.33750000 | | 11K2F3E |
| 2 | 1 | 451.33750000 | | 7K60FXD |
| 3 | 1 | 451.33750000 | | 7K60FXD |
| 3 | 1 | 451.33750000 | | 7K60FXE |
| 3 | 1 | 451.33750000 | | 11K2F3E |
| 1 | 1 | 451.41250000 | | 7K60FXD |
| 1 | 1 | 451.41250000 | | 11K2F3E |
| 1 | 1 | 451.41250000 | | 7K60FXE |
| 2 | 1 | 451.41250000 | | 7K60FXD |
| 2 | 1 | 451.41250000 | | 11K2F3E |
| 2 | 1 | 451.41250000 | | 7K60FXE |
| 3 | 1 | 451.41250000 | | 7K60FXE |
| 3 | 1 | 451.41250000 | | 7K60FXD |
| 3 | 1 | 451.41250000 | | 11K2F3E |
| 1 | 1 | 451.46250000 | | 7K60FXD |
| 1 | 1 | 451.46250000 | | 7K60FXE |
| 1 | 1 | 451.46250000 | | 11K2F3E |
| 2 | 1 | 451.46250000 | | 7K60FXD |
| 2 | 1 | 451.46250000 | | 11K2F3E |
| 2 | 1 | 451.46250000 | | 7K60FXE |
| 3 | 1 | 451.46250000 | | 11K2F3E |
| 3 | 1 | 451.46250000 | | 7K60FXD |
| 3 | 1 | 451.46250000 | | 7K60FXE |
| 2 | 1 | 456.23750000 | | 7K60FXD |
| 2 | 1 | 456.23750000 | | 11K2F3E |
| 2 | 1 | 456.23750000 | | 7K60FXE |
| 3 | 1 | 456.23750000 | | 7K60FXE |
| 3 | 1 | 456.23750000 | | 11K2F3E |
| 3 | 1 | 456.23750000 | | 7K60FXD |
| 5 | 1 | 456.23750000 | | 11K2F3E |
| 5 | 1 | 456.23750000 | | 7K60FXE |
| 5 | 1 | 456.23750000 | | 7K60FXD |
| 2 | 1 | 456.31250000 | | 7K60FXD |
| 2 | 1 | 456.31250000 | | 11K2F3E |
| 2 | 1 | 456.31250000 | | 7K60FXE |
| 3 | 1 | 456.31250000 | | 7K60FXD |
| 3 | 1 | 456.31250000 | | 7K60FXE |
| 3 | 1 | 456.31250000 | | 11K2F3E |
| 5 | 1 | 456.31250000 | | 11K2F3E |
| 5 | 1 | 456.31250000 | | 7K60FXD |
| 5 | 1 | 456.31250000 | | 7K60FXE |
| 1 | 1 | 456.33750000 | | 11K2F3E |
| 1 | 1 | 456.33750000 | | 7K60FXE |
| 1 | 1 | 456.33750000 | | 7K60FXD |
| 2 | 1 | 456.33750000 | | 7K60FXE |
| 2 | 1 | 456.33750000 | | 11K2F3E |
| 2 | 1 | 456.33750000 | | 7K60FXD |
| 3 | 1 | 456.33750000 | | 11K2F3E |
| 3 | 1 | 456.33750000 | | 7K60FXE |
| 3 | 1 | 456.33750000 | | 7K60FXD |
| 1 | 1 | 456.41250000 | | 7K60FXD |
| 1 | 1 | 456.41250000 | | 7K60FXE |
| 1 | 1 | 456.41250000 | | 11K2F3E |
| 2 | 1 | 456.41250000 | | 7K60FXE |
| 2 | 1 | 456.41250000 | | 11K2F3E |
| 2 | 1 | 456.41250000 | | 7K60FXD |
| 3 | 1 | 456.41250000 | | 7K60FXD |
| 3 | 1 | 456.41250000 | | 7K60FXE |
| 3 | 1 | 456.41250000 | | 11K2F3E |
| 1 | 1 | 456.46250000 | | 7K60FXD |
| 1 | 1 | 456.46250000 | | 7K60FXE |
| 1 | 1 | 456.46250000 | | 11K2F3E |
| 2 | 1 | 456.46250000 | | 7K60FXD |
| 2 | 1 | 456.46250000 | | 7K60FXE |
| 2 | 1 | 456.46250000 | | 11K2F3E |
| 3 | 1 | 456.46250000 | | 7K60FXE |
| 3 | 1 | 456.46250000 | | 7K60FXD |
| 3 | 1 | 456.46250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | KING, WA | 47.64094444, -122.13511111 | | | | |
| 2 | T | SNOHOMISH, WA | 47.79455556, -122.19625000 | | | | |
| 3 | T | KING, WA | 47.54483333, -122.04261111 | | | | |
| 4 | | 1 Microsoft Way, Redmond, KING, WA | 47.64011111, -122.13444444 | 118.000 m | Bant | 21.000 m structure / 23.000 m overall | N |
| 5 | | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | 23.000 m | | | | 54.400 | |
| 1 | 5 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1 MICROSOFT WAY, REDMOND, WA | KING | 4257035508 |
License history
| Date | File or call sign | Action |
|---|
| 2023-03-24 | WPLW581 | LIREN |
| 2023-01-02 | WPLW581 | LETRES |
| 2017-01-17 | WPLW581 | LIMOD |
| 2015-08-26 | WPLW581 | LIAUA |
| 2015-08-26 | WPLW581 | LTSAPR |
| 2015-04-21 | WPLW581 | LETCNS |
| 2014-07-17 | WPLW581 | LIMOD |
| 2013-03-25 | WPLW581 | LTSAPR |
| 2013-03-23 | WPLW581 | LIREN |
| 2012-12-31 | WPLW581 | LETRES |
| 2004-02-21 | WPLW581 | LIAUA |
| 2003-02-27 | WPLW581 | LIREN |
| 2002-12-30 | WPLW581 | LETRES |
| 2002-07-09 | WPLW581 | AUDOPR |
| 2000-11-23 | WPLW581 | LICCNV |
| 1998-03-23 | WPLW581 | LIISS |
| 1998-03-23 | WPLW581 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1788894 | 2026-08-02 01:25:12 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPLW581 | ULS 1788894 | 2026-08-02 01:25:12 |
| Status | A | ULS 1788894 | 2026-08-02 01:25:12 |
| Service | IG | ULS 1788894 | 2026-08-02 01:25:12 |
| Grant Date | 2023-03-24 | ULS 1788894 | 2026-08-02 01:25:12 |
| Expiration Date | 2033-03-23 | ULS 1788894 | 2026-08-02 01:25:12 |