Universal Licensing System
WRFY818
Maryland Environmental Svc
License details
| ULS identifier | 4284286 |
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| Call sign | WRFY818 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2020-06-02 |
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| Expiration | 2030-06-02 |
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| Frequency range | 452.6625 - 457.6875 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | DERWOOD, MONTGOMERY, MD |
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| Coordinates | 39.1203333, -77.1697222 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:51 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 452.66250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.68750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.71250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.66250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.68750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.66250000 | | 7K60FXE |
| 1 | 1 | 452.68750000 | | 7K60FXE |
| 1 | 1 | 456.71250000 | | 7K60FXE |
| 1 | 1 | 457.66250000 | | 7K60FXE |
| 1 | 1 | 457.68750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DERWOOD, MONTGOMERY, MD | 39.12033333, -77.16972222 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 16105 FREDERICK RD, DERWOOD, MD | MONTGOMERY | 2407776953 |
License history
| Date | File or call sign | Action |
|---|
| 2021-03-02 | WRFY818 | LETCNS |
| 2020-06-02 | WRFY818 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4284286 | 2026-08-02 01:23:51 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRFY818 | ULS 4284286 | 2026-08-02 01:23:51 |
| Status | A | ULS 4284286 | 2026-08-02 01:23:51 |
| Service | IG | ULS 4284286 | 2026-08-02 01:23:51 |
| Grant Date | 2020-06-02 | ULS 4284286 | 2026-08-02 01:23:51 |
| Expiration Date | 2030-06-02 | ULS 4284286 | 2026-08-02 01:23:51 |