Universal Licensing System
WRDF543
Cambridge International
License details
| ULS identifier | 4150304 |
|---|
| Call sign | WRDF543 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-04-17 |
|---|
| Expiration | 2029-04-17 |
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| Frequency range | 451.4125 - 457.1875 MHz (5 frequencies) |
|---|
| Locations | 1 |
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| Representative location | CAMBRIDGE, DORCHESTER, MD |
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| Coordinates | 38.5570000, -76.0684722 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:41 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.68750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.18750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.68750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.18750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.41250000 | | 7K60FXE |
| 1 | 1 | 451.68750000 | | 7K60FXE |
| 1 | 1 | 452.18750000 | | 7K60FXE |
| 1 | 1 | 456.68750000 | | 7K60FXE |
| 1 | 1 | 457.18750000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CAMBRIDGE, DORCHESTER, MD | 38.55700000, -76.06847222 | | | | |
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 | 105 GOODWILL RD, CAMBRIDGE, MD | DORCHESTER | 4102283007 |
License history
| Date | File or call sign | Action |
|---|
| 2020-01-24 | WRDF543 | LETCNS |
| 2019-04-17 | WRDF543 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4150304 | 2026-08-02 01:22:41 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDF543 | ULS 4150304 | 2026-08-02 01:22:41 |
| Status | A | ULS 4150304 | 2026-08-02 01:22:41 |
| Service | IG | ULS 4150304 | 2026-08-02 01:22:41 |
| Grant Date | 2019-04-17 | ULS 4150304 | 2026-08-02 01:22:41 |
| Expiration Date | 2029-04-17 | ULS 4150304 | 2026-08-02 01:22:41 |