Universal Licensing System
WRKS771
Modern Drilling Co
License details
| ULS identifier | 4386157 |
|---|
| Call sign | WRKS771 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-02-09 |
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| Expiration | 2031-02-09 |
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| Frequency range | 457.4125 MHz |
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| Locations | 1 |
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| Representative location | Ankeny, POLK, IA |
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| Coordinates | 41.7171667, -93.5934444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:22:15 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 457.41250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 457.41250000 | | 7K60FXD |
| 1 | 1 | 457.41250000 | | 11K2F3E |
| 1 | 1 | 457.41250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Ankeny, POLK, IA | 41.71716667, -93.59344444 | | | | |
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 |
|---|
| 1 | 405 SE Magazine Rd, Suite 108, Ankeny, IA | POLK | 5157825633 |
License history
| Date | File or call sign | Action |
|---|
| 2021-02-09 | WRKS771 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4386157 | 2026-08-02 01:22:15 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKS771 | ULS 4386157 | 2026-08-02 01:22:15 |
| Status | A | ULS 4386157 | 2026-08-02 01:22:15 |
| Service | IG | ULS 4386157 | 2026-08-02 01:22:15 |
| Grant Date | 2021-02-09 | ULS 4386157 | 2026-08-02 01:22:15 |
| Expiration Date | 2031-02-09 | ULS 4386157 | 2026-08-02 01:22:15 |