Universal Licensing System
WRMK339
Microsoft Corporation
License details
| ULS identifier | 4439354 |
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| Call sign | WRMK339 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-04-22 |
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| Expiration | 2031-04-22 |
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| Frequency range | 461.075 MHz |
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| Locations | 1 |
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| Representative location | Des Moines, POLK, IA |
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| Coordinates | 41.5160278, -93.7086944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:13 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 461.07500000 | | | 100.000000 | 200.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.07500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 550 SE White Crane Road, Des Moines, POLK, IA | 41.51602778, -93.70869444 | 292.000 m | BANT | 8.300 m structure / 8.500 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 8.500 m | | | | 28.200 | |
Control points
| Number | Address | County | Phone |
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| 1 | 550 SE White Crane Road, Des Moines, IA | POLK | 4257075115 |
License history
| Date | File or call sign | Action |
|---|
| 2025-03-18 | WRMK339 | LIAUA |
| 2021-04-22 | WRMK339 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4439354 | 2026-08-02 01:25:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMK339 | ULS 4439354 | 2026-08-02 01:25:13 |
| Status | A | ULS 4439354 | 2026-08-02 01:25:13 |
| Service | IG | ULS 4439354 | 2026-08-02 01:25:13 |
| Grant Date | 2021-04-22 | ULS 4439354 | 2026-08-02 01:25:13 |
| Expiration Date | 2031-04-22 | ULS 4439354 | 2026-08-02 01:25:13 |