Universal Licensing System
WRTD481
Belfor USA Group Inc.
License details
| ULS identifier | 4617183 |
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| Call sign | WRTD481 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2022-06-04 |
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| Expiration | 2032-06-04 |
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| Frequency range | 451.5 - 456.5 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | Marlborough, MIDDLESEX, MA |
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| Coordinates | 42.3211389, -71.5953056 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:20:39 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.50000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.50000000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.50000000 | | 11K2F3E |
| 1 | 1 | 451.50000000 | | 7K60FXE |
| 1 | 1 | 456.50000000 | | 11K2F3E |
| 1 | 1 | 456.50000000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Marlborough, MIDDLESEX, MA | 42.32113889, -71.59530556 | | | | |
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 |
|---|
| 1 | 138 Bartlett Street, Marlborough, MA | MIDDLESEX | 5084859780 |
License history
| Date | File or call sign | Action |
|---|
| 2022-06-04 | WRTD481 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4617183 | 2026-08-02 01:20:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRTD481 | ULS 4617183 | 2026-08-02 01:20:39 |
| Status | A | ULS 4617183 | 2026-08-02 01:20:39 |
| Service | IG | ULS 4617183 | 2026-08-02 01:20:39 |
| Grant Date | 2022-06-04 | ULS 4617183 | 2026-08-02 01:20:39 |
| Expiration Date | 2032-06-04 | ULS 4617183 | 2026-08-02 01:20:39 |