Universal Licensing System
WRDX703
Zenith Energy
License details
| ULS identifier | 4189183 |
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| Call sign | WRDX703 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-08-14 |
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| Expiration | 2029-08-14 |
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| Frequency range | 451.3375 - 457.6875 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | Portland, MULTNOMAH, OR |
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| Coordinates | 45.5605000, -122.7370833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:02 |
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Licensee
| Name | Zenith Energy |
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| Applicant type | C |
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| FRN | 0028599595 |
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| Location | Portland, OR |
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| Address | 5501 NW Front Ave, Portland, OR, 97206 |
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| Phone | 5032734736 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | MO | 451.33750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.61250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 452.68750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.33750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 457.68750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.33750000 | | 7K60F1W |
| 1 | 1 | 451.33750000 | | 11K0F3E |
| 1 | 1 | 451.61250000 | | 11K0F3E |
| 1 | 1 | 451.61250000 | | 7K60F1W |
| 1 | 1 | 452.68750000 | | 7K60F1W |
| 1 | 1 | 452.68750000 | | 11K0F3E |
| 1 | 1 | 456.33750000 | | 11K0F3E |
| 1 | 1 | 456.33750000 | | 7K60F1W |
| 1 | 1 | 457.68750000 | | 7K60F1W |
| 1 | 1 | 457.68750000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Portland, MULTNOMAH, OR | 45.56050000, -122.73708333 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 5501 NW Front Ave, Portland, OR | MULTNOMAH | 5032734736 |
License history
| Date | File or call sign | Action |
|---|
| 2019-08-14 | WRDX703 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4189183 | 2026-08-02 01:23:02 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WRDX703 | ULS 4189183 | 2026-08-02 01:23:02 |
| Status | A | ULS 4189183 | 2026-08-02 01:23:02 |
| Service | IG | ULS 4189183 | 2026-08-02 01:23:02 |
| Grant Date | 2019-08-14 | ULS 4189183 | 2026-08-02 01:23:02 |
| Expiration Date | 2029-08-14 | ULS 4189183 | 2026-08-02 01:23:02 |