Universal Licensing System
WRDK460
Stryker Instruments Division Facility
License details
| ULS identifier | 4161908 |
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| Call sign | WRDK460 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-05-20 |
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| Expiration | 2029-05-20 |
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| Frequency range | 72.28 - 456.4 MHz (3 frequencies) |
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| Locations | 2 |
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| Representative location | Portage, KALAMAZOO, MI |
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| Coordinates | 42.1988889, -85.5435278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:43 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 72.28000000 | | | 12.000000 | 10.000000 | |
| 2 | 1 | FB2 | 451.40000000 | | | 20.000000 | 20.000000 | |
| 3 | 1 | MO | 451.40000000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 456.40000000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 72.28000000 | | 20K0F1D |
| 2 | 1 | 451.40000000 | | 11K2F3E |
| 2 | 1 | 451.40000000 | | 7K60FXE |
| 3 | 1 | 451.40000000 | | 11K2F3E |
| 3 | 1 | 451.40000000 | | 7K60FXE |
| 3 | 1 | 456.40000000 | | 11K2F3E |
| 3 | 1 | 456.40000000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1941 Stryker Way, Portage, KALAMAZOO, MI | 42.22513889, -85.56497222 | 271.000 m | BMAST | 23.400 m structure / 27.100 m overall | |
| 2 | T | 3800 E Centre Ave, Portage, KALAMAZOO, MI | 42.19888889, -85.54352778 | 265.000 m | BANT | 9.100 m structure / 12.200 m overall | N |
| 3 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 27.100 m | | | | 30.600 | |
| 1 | 2 | T | | 12.200 m | | | | 12.600 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1541 Stryker Way, Portage, MI | KALAMAZOO | 4087546102 |
| 2 | 3800 E. Centre Ave., Portage, MI | KALAMAZOO | 4087546102 |
License history
| Date | File or call sign | Action |
|---|
| 2019-09-26 | WRDK460 | LIMOD |
| 2019-05-20 | WRDK460 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4161908 | 2026-08-02 01:22:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRDK460 | ULS 4161908 | 2026-08-02 01:22:43 |
| Status | A | ULS 4161908 | 2026-08-02 01:22:43 |
| Service | IG | ULS 4161908 | 2026-08-02 01:22:43 |
| Grant Date | 2019-05-20 | ULS 4161908 | 2026-08-02 01:22:43 |
| Expiration Date | 2029-05-20 | ULS 4161908 | 2026-08-02 01:22:43 |