Universal Licensing System
WPDU774
Northrop Grumman Systems Corporation
License details
| ULS identifier | 1907091 |
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| Call sign | WPDU774 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2013-11-28 |
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| Expiration | 2023-11-26 |
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| Cancellation | 2024-02-03 |
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| Frequency range | 153.2 - 158.325 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | RANCHO BERNARDO, SAN DIEGO, CA |
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| Coordinates | 33.0213056, -117.1048333 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:10 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 153.20000000 | | | 25.000000 | 40.000000 | |
| 2 | 1 | MO | 158.32500000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 153.20000000 | | 20K0F3E |
| 2 | 1 | 158.32500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 17030 GOLDENTOP RD BLDG 1, RANCHO BERNARDO, SAN DIEGO, CA | 33.02130556, -117.10483333 | 178.300 m | BANT | 9.100 m structure / 10.900 m overall | N |
| 2 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 10.900 m | | | | 10.900 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1 Northrop Avenue, Hawthorne, CA | LOS ANGELES | 2136004974 |
License history
| Date | File or call sign | Action |
|---|
| 2024-02-03 | WPDU774 | LIEXP |
| 2023-09-04 | WPDU774 | LETRES |
| 2013-11-28 | WPDU774 | LIREN |
| 2013-09-02 | WPDU774 | LETRES |
| 2012-09-18 | WPDU774 | LIAUA |
| 2012-09-16 | WPDU774 | ESUAPR |
| 2011-07-30 | WPDU774 | ESCAPR |
| 2011-07-30 | WPDU774 | LIAUA |
| 2011-07-29 | WPDU774 | ESUAPR |
| 2011-07-29 | WPDU774 | EFUAPR |
| 2011-03-31 | WPDU774 | LITRAN |
| 2011-01-28 | WPDU774 | ESUAPR |
| 2008-04-28 | WPDU774 | ESUAPR |
| 2008-04-25 | WPDU774 | LIAUA |
| 2008-04-24 | WPDU774 | ESUAPR |
| 2005-02-15 | WPDU774 | LIMOD |
| 2005-01-14 | WPDU774 | LIAUA |
| 2005-01-13 | WPDU774 | ESUAPR |
| 2003-10-21 | WPDU774 | LIREN |
| 2003-09-04 | WPDU774 | LETRES |
| 2002-11-08 | WPDU774 | LIAUA |
| 2002-04-10 | WPDU774 | LIAUA |
| 2002-03-02 | WPDU774 | LIAUA |
| 2002-01-17 | WPDU774 | AUDOPR |
| 2001-05-10 | WPDU774 | LITRAN |
| 2000-11-24 | WPDU774 | LICCNV |
| 1999-08-09 | WPDU774 | AUTHPR |
| 1999-08-09 | WPDU774 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1907091 | 2026-08-02 01:14:10 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPDU774 | ULS 1907091 | 2026-08-02 01:14:10 |
| Status | E | ULS 1907091 | 2026-08-02 01:14:10 |
| Service | IG | ULS 1907091 | 2026-08-02 01:14:10 |
| Grant Date | 2013-11-28 | ULS 1907091 | 2026-08-02 01:14:10 |
| Expiration Date | 2023-11-26 | ULS 1907091 | 2026-08-02 01:14:10 |
| Cancellation Date | 2024-02-03 | ULS 1907091 | 2026-08-02 01:14:10 |