Universal Licensing System
WNMJ423
GILBERT SECURITY
License details
| ULS identifier | 1587644 |
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| Call sign | WNMJ423 |
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| Radio service | GU |
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| Status | E |
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| Grant date | 1998-06-01 |
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| Expiration | 2003-08-09 |
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| Cancellation | 2003-10-12 |
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| Frequency range | 896.25 - 935.25 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | BULL RUN, PRINCE WILLIAM, VA |
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| Coordinates | 38.9051111, -77.6722222 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:08 |
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Licensee
| Name | GILBERT SECURITY |
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| Applicant type | C |
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| FRN | 0002062990 |
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| Location | LORTON, VA |
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| Address | 8245D BACKLICK RD, LORTON, VA, 22079 |
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| Phone | 7035508860 |
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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 | FX1 | 896.25000000 | | | 30.000000 | 50.000000 | |
| 3 | 1 | MO | 896.25000000 | | | 12.000000 | 20.000000 | |
| 2 | 1 | FB4 | 935.25000000 | | | 150.000000 | 214.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 896.25000000 | | 13K6F3E |
| 3 | 1 | 896.25000000 | | 13K6F3E |
| 2 | 1 | 935.25000000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | VA | | | | | |
| 2 | T | BULL RUN MOUNTAIN, BULL RUN, PRINCE WILLIAM, VA | 38.90511111, -77.67222222 | 355.000 m | | | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 30.000 m | | | | 241.000 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 8241-1 BACKLICK RD, LORTON, VA | | 7035508860 |
License history
| Date | File or call sign | Action |
|---|
| 2003-10-12 | WNMJ423 | LIEXP |
| 2003-05-12 | WNMJ423 | LETRES |
| 2000-11-22 | WNMJ423 | LICCNV |
| 1998-06-01 | WNMJ423 | LIREN |
| 1998-06-01 | WNMJ423 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1587644 | 2026-08-02 01:13:08 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNMJ423 | ULS 1587644 | 2026-08-02 01:13:08 |
| Status | E | ULS 1587644 | 2026-08-02 01:13:08 |
| Service | GU | ULS 1587644 | 2026-08-02 01:13:08 |
| Grant Date | 1998-06-01 | ULS 1587644 | 2026-08-02 01:13:08 |
| Expiration Date | 2003-08-09 | ULS 1587644 | 2026-08-02 01:13:08 |
| Cancellation Date | 2003-10-12 | ULS 1587644 | 2026-08-02 01:13:08 |