Universal Licensing System
WRDU309
Asana
License details
| ULS identifier | 4181540 |
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| Call sign | WRDU309 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-07-20 |
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| Expiration | 2029-07-20 |
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| Frequency range | 452.0375 - 457.0625 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | San Francisco, SAN FRANCISCO, CA |
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| Coordinates | 37.7675278, -122.4107778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:05 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 452.03750000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 452.06250000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 452.83750000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 457.03750000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 457.06250000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 452.03750000 | | 7K60FXW |
| 1 | 1 | 452.06250000 | | 7K60FXW |
| 1 | 1 | 452.83750000 | | 7K60FXW |
| 1 | 1 | 457.03750000 | | 7K60FXW |
| 1 | 1 | 457.06250000 | | 7K60FXW |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | San Francisco, SAN FRANCISCO, CA | 37.76752778, -122.41077778 | | | | |
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 | 1550 Bryant St, San Francisco, CA | SAN FRANCISCO | 4155253888 |
License history
| Date | File or call sign | Action |
|---|
| 2020-04-21 | WRDU309 | LETCNS |
| 2019-07-20 | WRDU309 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4181540 | 2026-08-02 01:23:05 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDU309 | ULS 4181540 | 2026-08-02 01:23:05 |
| Status | A | ULS 4181540 | 2026-08-02 01:23:05 |
| Service | IG | ULS 4181540 | 2026-08-02 01:23:05 |
| Grant Date | 2019-07-20 | ULS 4181540 | 2026-08-02 01:23:05 |
| Expiration Date | 2029-07-20 | ULS 4181540 | 2026-08-02 01:23:05 |