Universal Licensing System
WRBP450
The Lab School of Washington
License details
| ULS identifier | 4045140 |
|---|
| Call sign | WRBP450 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2018-05-14 |
|---|
| Expiration | 2028-05-14 |
|---|
| Frequency range | 152.9 - 159.825 MHz (4 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | Washington, DC |
|---|
| Coordinates | 38.9100556, -77.0840833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:18:39 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 4 | 1 | MO | 152.90000000 | | | 5.000000 | 5.000000 | |
| 2 | 1 | MO | 154.50500000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | FB2 | 159.60000000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 159.60000000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | FB2 | 159.82500000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO | 159.82500000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 4 | 1 | 152.90000000 | | 11K2F3E |
| 4 | 1 | 152.90000000 | | 7K60FXE |
| 4 | 1 | 152.90000000 | | 7K60FXD |
| 2 | 1 | 154.50500000 | | 7K60FXE |
| 2 | 1 | 154.50500000 | | 7K60FXD |
| 2 | 1 | 154.50500000 | | 11K2F3E |
| 3 | 1 | 159.60000000 | | 11K2F3E |
| 3 | 1 | 159.60000000 | | 7K60FXE |
| 3 | 1 | 159.60000000 | | 7K60FXD |
| 4 | 1 | 159.60000000 | | 11K2F3E |
| 4 | 1 | 159.60000000 | | 7K60FXE |
| 4 | 1 | 159.60000000 | | 7K60FXD |
| 1 | 1 | 159.82500000 | | 11K2F3E |
| 1 | 1 | 159.82500000 | | 7K60FXD |
| 1 | 1 | 159.82500000 | | 7K60FXE |
| 2 | 1 | 159.82500000 | | 7K60FXD |
| 2 | 1 | 159.82500000 | | 11K2F3E |
| 2 | 1 | 159.82500000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4759 Reservoir Road, Washington, DC | 38.91555556, -77.09222222 | 28.000 m | BANT | 9.100 m structure / 11.300 m overall | |
| 2 | T | | | | | | |
| 3 | T | 1550 Foxhall Road, N.W., Washington, DC | 38.91005556, -77.08408333 | 45.000 m | B | 18.300 m structure / 18.300 m overall | N |
| 4 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.300 m | | | | -25.700 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 18.300 m | | | | 0.100 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 4759 Reservoir Road NW, Washington, DC | | 2024542352 |
| 2 | 1550 Foxhall Rd NW, Washington, DC | | 2029656600 |
License history
| Date | File or call sign | Action |
|---|
| 2024-06-11 | WRBP450 | LETCNS |
| 2023-09-11 | WRBP450 | LIMOD |
| 2019-02-16 | WRBP450 | LETCNS |
| 2018-05-14 | WRBP450 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4045140 | 2026-08-02 01:18:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRBP450 | ULS 4045140 | 2026-08-02 01:18:39 |
| Status | A | ULS 4045140 | 2026-08-02 01:18:39 |
| Service | IG | ULS 4045140 | 2026-08-02 01:18:39 |
| Grant Date | 2018-05-14 | ULS 4045140 | 2026-08-02 01:18:39 |
| Expiration Date | 2028-05-14 | ULS 4045140 | 2026-08-02 01:18:39 |