Universal Licensing System
WRDX648
SILKE COMMUNICATIONS, INC
License details
| ULS identifier | 4189108 |
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| Call sign | WRDX648 |
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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 | 451.525 - 456.525 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | DRAIN, DOUGLAS, OR |
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| Coordinates | 43.6386667, -123.3265278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:09:28 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 451.52500000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | MO6 | 451.52500000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | MO6 | 456.52500000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.52500000 | | 11K2F3E |
| 1 | 1 | 451.52500000 | | 8K30F1E |
| 1 | 1 | 451.52500000 | | 7K60FXD |
| 2 | 1 | 451.52500000 | | 11K2F3E |
| 2 | 1 | 451.52500000 | | 7K60FXD |
| 2 | 1 | 451.52500000 | | 8K30F1E |
| 2 | 1 | 456.52500000 | | 8K30F1E |
| 2 | 1 | 456.52500000 | | 11K2F3E |
| 2 | 1 | 456.52500000 | | 7K60FXD |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | YONCALLA BUTTE, APX 1.5 MI SOUTH OF DRAIN, DRAIN, DOUGLAS, OR | 43.63866667, -123.32652778 | 550.000 m | MAST | 15.000 m structure / 15.000 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 15.000 m | | | | 299.100 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3 CROW CANYON RD, SAN RAMON, CA | CONTRA COSTA | 8317841900 |
License history
| Date | File or call sign | Action |
|---|
| 2019-08-14 | WRDX648 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4189108 | 2026-08-02 01:09:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDX648 | ULS 4189108 | 2026-08-02 01:09:28 |
| Status | A | ULS 4189108 | 2026-08-02 01:09:28 |
| Service | IG | ULS 4189108 | 2026-08-02 01:09:28 |
| Grant Date | 2019-08-14 | ULS 4189108 | 2026-08-02 01:09:28 |
| Expiration Date | 2029-08-14 | ULS 4189108 | 2026-08-02 01:09:28 |