Universal Licensing System
WSIN451
Maryland Department of Natural Resources
License details
| ULS identifier | 5144884 |
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| Call sign | WSIN451 |
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| Radio service | PF |
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| Status | A |
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| Grant date | 2025-06-03 |
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| Expiration | 2035-06-03 |
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| Frequency range | 4955 MHz |
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| Locations | 2 |
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| Representative location | Trappe, TALBOT, MD |
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| Coordinates | 38.6387778, -76.0586111 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:18 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 4955.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 4955.00000000 | | 20M0W7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | East side of US RT-50, 0.1 Mile North of Beaver Dam Road, Trappe, TALBOT, MD | 38.63877778, -76.05861111 | 15.200 m | LTOWER | 103.700 m structure / 109.100 m overall | |
| 2 | R | | 38.67227778, -76.33888889 | 1.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RAD Data Communications AIRMUX-400-RADOME | | H | 22.0000 | 278.7000 | | |
| 1 | 2 | R | RAD Data Communication AIRMUX-400-RADOME | | | 22.0000 | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1070 east college ave, Annapolis, MD | ANNE ARUNDEL | 4102795926 |
License history
| Date | File or call sign | Action |
|---|
| 2025-06-03 | WSIN451 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 5144884 | 2026-08-02 02:48:18 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSIN451 | ULS 5144884 | 2026-08-02 02:48:18 |
| Status | A | ULS 5144884 | 2026-08-02 02:48:18 |
| Service | PF | ULS 5144884 | 2026-08-02 02:48:18 |
| Grant Date | 2025-06-03 | ULS 5144884 | 2026-08-02 02:48:18 |
| Expiration Date | 2035-06-03 | ULS 5144884 | 2026-08-02 02:48:18 |