Universal Licensing System
WNWJ879
EFFICIENCY PRODUCTION INC
License details
| ULS identifier | 1905537 |
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| Call sign | WNWJ879 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2011-04-28 |
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| Expiration | 2021-07-08 |
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| Cancellation | 2021-10-09 |
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| Frequency range | 462.425 MHz |
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| Locations | 2 |
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| Representative location | MASON, INGHAM, MI |
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| Coordinates | 42.5686389, -84.4419167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:39 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 462.42500000 | | | 30.000000 | 90.000000 | |
| 2 | 1 | MO | 462.42500000 | | | 30.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 462.42500000 | | 11K2F3E |
| 2 | 1 | 462.42500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 685 HULL RD, MASON, INGHAM, MI | 42.56863889, -84.44191667 | 283.000 m | B | 10.000 m structure / 13.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 13.000 m | | | | 15.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 685 HULL RD, MASON, MI | INGHAM | 5176768800 |
License history
| Date | File or call sign | Action |
|---|
| 2021-10-09 | WNWJ879 | LIEXP |
| 2021-04-12 | WNWJ879 | LETRES |
| 2012-10-02 | WNWJ879 | LIMOD |
| 2012-07-11 | WNWJ879 | ESUAPR |
| 2011-04-28 | WNWJ879 | LIREN |
| 2011-04-27 | WNWJ879 | ESUAPR |
| 2011-04-11 | WNWJ879 | LETRES |
| 2006-06-22 | WNWJ879 | LIAUA |
| 2006-06-21 | WNWJ879 | ESUAPR |
| 2004-07-09 | WNWJ879 | LIAUA |
| 2004-07-09 | WNWJ879 | LTSAPR |
| 2004-06-30 | WNWJ879 | AUTHPR |
| 2004-06-29 | WNWJ879 | COR |
| 2004-06-29 | WNWJ879 | INTDUP |
| 2004-06-23 | WNWJ879 | PNACT |
| 2004-06-10 | WNWJ879 | LITERM |
| 2004-06-10 | WNWJ879 | LETACS |
| 2001-07-06 | WNWJ879 | LIREN |
| 2001-04-16 | WNWJ879 | LETRES |
| 2000-11-24 | WNWJ879 | LICCNV |
| 1996-07-08 | WNWJ879 | LIREN |
| 1996-07-08 | WNWJ879 | AUTHPR |
| WNWJ879 | AUDCAN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1905537 | 2026-08-02 01:14:39 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNWJ879 | ULS 1905537 | 2026-08-02 01:14:39 |
| Status | E | ULS 1905537 | 2026-08-02 01:14:39 |
| Service | IG | ULS 1905537 | 2026-08-02 01:14:39 |
| Grant Date | 2011-04-28 | ULS 1905537 | 2026-08-02 01:14:39 |
| Expiration Date | 2021-07-08 | ULS 1905537 | 2026-08-02 01:14:39 |
| Cancellation Date | 2021-10-09 | ULS 1905537 | 2026-08-02 01:14:39 |