Universal Licensing System
WRDD903
Aviation Spectrum Resources Inc
License details
| ULS identifier | 4146125 |
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| Call sign | WRDD903 |
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| Radio service | AF |
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| Status | A |
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| Grant date | 2019-04-04 |
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| Expiration | 2029-04-04 |
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| Frequency range | 131.475 MHz |
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| Locations | 1 |
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| Representative location | Denver, JEFFERSON, CO |
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| Coordinates | 39.9070556, -105.1064444 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:35 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 131.47500000 | | | 10.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 131.47500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | Rocky Mountain Metropolitan Airport, Denver, JEFFERSON, CO | 39.90705556, -105.10644444 | 1696.500 m | BMAST | 3.300 m structure / 4.200 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 4.200 m | | | 360.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2019-04-04 | WRDD903 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4146125 | 2026-08-02 02:08:35 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDD903 | ULS 4146125 | 2026-08-02 02:08:35 |
| Status | A | ULS 4146125 | 2026-08-02 02:08:35 |
| Service | AF | ULS 4146125 | 2026-08-02 02:08:35 |
| Grant Date | 2019-04-04 | ULS 4146125 | 2026-08-02 02:08:35 |
| Expiration Date | 2029-04-04 | ULS 4146125 | 2026-08-02 02:08:35 |