Universal Licensing System
WPVM481
ENGINEERED STRUCTURES, INC.
License details
| ULS identifier | 2431658 |
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| Call sign | WPVM481 |
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| Radio service | IK |
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| Status | E |
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| Grant date | 2002-07-16 |
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| Expiration | 2012-07-16 |
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| Cancellation | 2012-09-01 |
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| Frequency range | 470.4125 - 473.4125 MHz (2 frequencies) |
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| Locations | 1 |
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| Source archive | l_LMcomm.zip |
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| Dataset refreshed | 2026-08-02 00:43:34 |
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Licensee
| Name | ENGINEERED STRUCTURES, INC. |
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| Applicant type | C |
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| FRN | 0005908066 |
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| Location | KOUTS, IN |
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| Address | KOUTS, IN, 463470345 |
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| Phone | 2195484150 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6C | 470.41250000 | | | 100.000000 | 250.000000 | |
| 2 | 1 | MO6 | 470.41250000 | | | 45.000000 | 45.000000 | |
| 2 | 1 | MO6 | 473.41250000 | | | 45.000000 | 45.000000 | |
| 3 | 1 | FX1T | 473.41250000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 470.41250000 | | 11K2F2D |
| 1 | 1 | 470.41250000 | | 11K2F1D |
| 1 | 1 | 470.41250000 | | 11K2F3E |
| 2 | 1 | 470.41250000 | | 11K2F1D |
| 2 | 1 | 470.41250000 | | 11K2F2D |
| 2 | 1 | 470.41250000 | | 11K2F3E |
| 2 | 1 | 473.41250000 | | 11K2F1D |
| 2 | 1 | 473.41250000 | | 11K2F2D |
| 2 | 1 | 473.41250000 | | 11K2F3E |
| 3 | 1 | 473.41250000 | | 11K2F1D |
| 3 | 1 | 473.41250000 | | 11K2F3E |
| 3 | 1 | 473.41250000 | | 11K2F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | EAST TOWER 875 N MICHIGAN AVE, CHICAGO, COOK, IL | 41.89888889, -87.62305556 | 180.700 m | BTWR | 337.200 m structure / 443.600 m overall | N |
| 2 | T | | | 0.000 m | | 0.000 m structure / 0.000 m overall | |
| 3 | T | | | 0.000 m | | 0.000 m structure / 0.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 342.500 m | | | | 342.300 | |
| 1 | 2 | | | | | | | | |
| 1 | 3 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 655 N. CALUMET AVENUE, VALPARAISO, IN | | 2194622969 |
| 2 | 3206 CASCADE DRIVE, SUITE G, VALPARAISO, IN | | 2194622969 |
License history
| Date | File or call sign | Action |
|---|
| 2012-09-01 | WPVM481 | LIEXP |
| 2012-04-23 | WPVM481 | LETRES |
| 2003-09-16 | WPVM481 | LIAUA |
| 2003-04-14 | WPVM481 | LETCNS |
| 2003-01-17 | WPVM481 | LIMOD |
| 2002-09-21 | WPVM481 | LIAUA |
| 2002-07-16 | WPVM481 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2431658 | 2026-08-02 00:43:34 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPVM481 | ULS 2431658 | 2026-08-02 00:43:34 |
| Status | E | ULS 2431658 | 2026-08-02 00:43:34 |
| Service | IK | ULS 2431658 | 2026-08-02 00:43:34 |
| Grant Date | 2002-07-16 | ULS 2431658 | 2026-08-02 00:43:34 |
| Expiration Date | 2012-07-16 | ULS 2431658 | 2026-08-02 00:43:34 |
| Cancellation Date | 2012-09-01 | ULS 2431658 | 2026-08-02 00:43:34 |