Universal Licensing System
WRDK904
POLYKON MANUFACTURING
License details
| ULS identifier | 4162885 |
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| Call sign | WRDK904 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-05-22 |
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| Expiration | 2029-05-22 |
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| Frequency range | 464.0125 - 469.4125 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | SANDSTON, HENRICO, VA |
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| Coordinates | 37.4929444, -77.2271111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:49 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 464.01250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 464.13750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 469.01250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 469.13750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 469.41250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.01250000 | | 11K2F3E |
| 1 | 1 | 464.13750000 | | 11K2F3E |
| 1 | 1 | 469.01250000 | | 11K2F3E |
| 1 | 1 | 469.13750000 | | 11K2F3E |
| 1 | 1 | 469.41250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SANDSTON, HENRICO, VA | 37.49294444, -77.22711111 | | | | |
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 | 6201 ENGINEERED WOOD WAY, SANDSTON, VA | HENRICO | 8049259632 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-22 | WRDK904 | LIAUA |
| 2019-05-22 | WRDK904 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4162885 | 2026-08-02 01:22:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDK904 | ULS 4162885 | 2026-08-02 01:22:49 |
| Status | A | ULS 4162885 | 2026-08-02 01:22:49 |
| Service | IG | ULS 4162885 | 2026-08-02 01:22:49 |
| Grant Date | 2019-05-22 | ULS 4162885 | 2026-08-02 01:22:49 |
| Expiration Date | 2029-05-22 | ULS 4162885 | 2026-08-02 01:22:49 |