Universal Licensing System
WNPP772
ENVIRONMENTAL SYSTEM COMPANY
License details
| ULS identifier | 1668482 |
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| Call sign | WNPP772 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-05-21 |
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| Expiration | 2014-06-21 |
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| Cancellation | 2014-08-23 |
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| Frequency range | 464.425 - 469.425 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | EL DORADO, UNION, AR |
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| Coordinates | 33.2084722, -92.6251667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:41 |
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Licensee
| Name | ENVIRONMENTAL SYSTEM COMPANY |
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| Applicant type | C |
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| FRN | 0001726785 |
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| Location | EL DORADO, AR |
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| Address | 309 AMERICAN Circle, EL DORADO, AR, 71730 |
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| Phone | 8708637173 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB | 464.42500000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 469.42500000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.42500000 | | 16K0F9W |
| 2 | 1 | 469.42500000 | | 16K0F9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | AMERICAN OIL RD, EL DORADO, UNION, AR | 33.20847222, -92.62516667 | 66.000 m | | | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 18.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 2 | 309 American Circle, El Dorado, AR | UNION | 8708637173 |
License history
| Date | File or call sign | Action |
|---|
| 2014-08-23 | WNPP772 | LIEXP |
| 2014-03-31 | WNPP772 | LETRES |
| 2004-05-21 | WNPP772 | LIREN |
| 2004-05-14 | WNPP772 | LTSAPR |
| 2004-03-29 | WNPP772 | LETRES |
| 2001-10-09 | WNPP772 | AUDOPR |
| 2000-11-23 | WNPP772 | LICCNV |
| 1999-07-13 | WNPP772 | AUTHPR |
| 1999-07-13 | WNPP772 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1668482 | 2026-08-02 01:16:41 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNPP772 | ULS 1668482 | 2026-08-02 01:16:41 |
| Status | E | ULS 1668482 | 2026-08-02 01:16:41 |
| Service | IG | ULS 1668482 | 2026-08-02 01:16:41 |
| Grant Date | 2004-05-21 | ULS 1668482 | 2026-08-02 01:16:41 |
| Expiration Date | 2014-06-21 | ULS 1668482 | 2026-08-02 01:16:41 |
| Cancellation Date | 2014-08-23 | ULS 1668482 | 2026-08-02 01:16:41 |