Universal Licensing System
WRDW641
UNIVERSITY OF MINNESOTA-DULUTH
License details
| ULS identifier | 4186748 |
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| Call sign | WRDW641 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-08-06 |
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| Expiration | 2029-08-06 |
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| Frequency range | 451.6625 - 456.7125 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | DULUTH, ST. LOUIS, MN |
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| Coordinates | 46.8171111, -92.0844444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:00 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.66250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 451.71250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.66250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 456.71250000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.66250000 | | 11K2F1D |
| 1 | 1 | 451.66250000 | | 11K2F3E |
| 1 | 1 | 451.71250000 | | 11K2F3E |
| 1 | 1 | 451.71250000 | | 11K2F1D |
| 1 | 1 | 456.66250000 | | 11K2F3E |
| 1 | 1 | 456.66250000 | | 11K2F1D |
| 1 | 1 | 456.71250000 | | 11K2F3E |
| 1 | 1 | 456.71250000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | DULUTH, ST. LOUIS, MN | 46.81711111, -92.08444444 | | | | |
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 | 1049 UNIVERSITY DRIVE, DULUTH, MN | ST. LOUIS | 2187267525 |
License history
| Date | File or call sign | Action |
|---|
| 2020-05-05 | WRDW641 | LETCNS |
| 2019-08-06 | WRDW641 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4186748 | 2026-08-02 01:23:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDW641 | ULS 4186748 | 2026-08-02 01:23:00 |
| Status | A | ULS 4186748 | 2026-08-02 01:23:00 |
| Service | IG | ULS 4186748 | 2026-08-02 01:23:00 |
| Grant Date | 2019-08-06 | ULS 4186748 | 2026-08-02 01:23:00 |
| Expiration Date | 2029-08-06 | ULS 4186748 | 2026-08-02 01:23:00 |