Universal Licensing System
WJP4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1979533 |
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| Call sign | WJP4 |
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| Radio service | AF |
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| Status | C |
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| Grant date | 2005-02-15 |
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| Expiration | 2015-03-16 |
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| Cancellation | 2013-02-12 |
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| Frequency range | 130.125 MHz |
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| Locations | 1 |
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| Representative location | YPSILANTI, WAYNE, MI |
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| Coordinates | 42.2333611, -83.5332778 |
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| Source archive | l_coast.zip |
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| Dataset refreshed | 2026-08-02 02:08:30 |
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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 | FA | 130.12500000 | | | 55.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
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| 1 | 1 | 130.12500000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | DETROIT WILLOW RUN AIRPORT, YPSILANTI, WAYNE, MI | 42.23336111, -83.53327778 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | FLIGHT SCHEDULE OFFICE 2ND FLR 30 FT FROM TRANSMITTER DETROIT WILLOW RUN AIRPORT, DETROIT, MI | | |
| 2 | AIRPORT MAINTENANCE MANAGERS OFFICE 1ST FLR 75 FT FROM TRANSMITTER DETROIT, DETROIT, MI | | |
License history
| Date | File or call sign | Action |
|---|
| 2013-02-13 | WJP4 | LICAN |
| 2007-03-01 | WJP4 | AUTHPR |
| 2006-03-07 | WJP4 | AUTHPR |
| 2006-01-01 | WJP4 | LIASS |
| 2005-07-25 | WJP4 | ESCAPR |
| 2005-02-15 | WJP4 | LIREN |
| 2004-12-20 | WJP4 | LETRES |
| 2001-04-27 | WJP4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1979533 | 2026-08-02 02:08:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WJP4 | ULS 1979533 | 2026-08-02 02:08:30 |
| Status | C | ULS 1979533 | 2026-08-02 02:08:30 |
| Service | AF | ULS 1979533 | 2026-08-02 02:08:30 |
| Grant Date | 2005-02-15 | ULS 1979533 | 2026-08-02 02:08:30 |
| Expiration Date | 2015-03-16 | ULS 1979533 | 2026-08-02 02:08:30 |
| Cancellation Date | 2013-02-12 | ULS 1979533 | 2026-08-02 02:08:30 |