Universal Licensing System
WNDW290
POTOMAC ELECTRIC POWER COMPANY
License details
| ULS identifier | 1891407 |
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| Call sign | WNDW290 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-09-04 |
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| Expiration | 2035-10-24 |
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| Frequency range | 456.025 - 456.15 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | DICKERSON, MONTGOMERY, MD |
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| Coordinates | 39.2098333, -77.4638889 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:10:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FX1 | 456.02500000 | | | 25.000000 | 40.000000 | |
| 1 | 1 | FX1 | 456.05000000 | | | 25.000000 | 40.000000 | |
| 1 | 1 | FX1 | 456.07500000 | | | 25.000000 | 40.000000 | |
| 1 | 1 | FX1 | 456.12500000 | | | 25.000000 | 40.000000 | |
| 1 | 1 | FX1 | 456.15000000 | | | 25.000000 | 40.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 456.02500000 | | 11K2F3E |
| 1 | 1 | 456.05000000 | | 11K2F3E |
| 1 | 1 | 456.07500000 | | 11K2F3E |
| 1 | 1 | 456.12500000 | | 11K2F3E |
| 1 | 1 | 456.15000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DICKERSON POWER PLANT, DICKERSON, MONTGOMERY, MD | 39.20983333, -77.46388889 | 87.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3400 BENNING RD NE KENILWORTH, WASHINGTON, DC | | 2023882350 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-04 | WNDW290 | LIREN |
| 2025-07-29 | WNDW290 | LETRES |
| 2025-01-09 | WNDW290 | LIAUA |
| 2016-03-23 | WNDW290 | LITRAN |
| 2015-08-26 | WNDW290 | LIREN |
| 2015-08-03 | WNDW290 | LETRES |
| 2015-07-28 | WNDW290 | LIMOD |
| 2014-09-22 | WNDW290 | ESUAPR |
| 2011-09-23 | WNDW290 | LIAUA |
| 2011-09-22 | WNDW290 | ESUAPR |
| 2005-08-19 | WNDW290 | LIREN |
| 2005-08-01 | WNDW290 | LETRES |
| 2003-03-25 | WNDW290 | LIAUA |
| 2002-08-01 | WNDW290 | LITRAN |
| 2002-01-29 | WNDW290 | AUDOPR |
| 2001-12-05 | WNDW290 | LIAUA |
| 2000-11-24 | WNDW290 | LICCNV |
| 2000-09-07 | WNDW290 | AUTHPR |
| 2000-09-06 | WNDW290 | LIREN |
| 2000-07-24 | WNDW290 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1891407 | 2026-08-02 01:10:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNDW290 | ULS 1891407 | 2026-08-02 01:10:20 |
| Status | A | ULS 1891407 | 2026-08-02 01:10:20 |
| Service | IG | ULS 1891407 | 2026-08-02 01:10:20 |
| Grant Date | 2025-09-04 | ULS 1891407 | 2026-08-02 01:10:20 |
| Expiration Date | 2035-10-24 | ULS 1891407 | 2026-08-02 01:10:20 |