Universal Licensing System
WNJN264
MASTER SECURITY INC
License details
| ULS identifier | 1659311 |
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| Call sign | WNJN264 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-07-11 |
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| Expiration | 2002-07-27 |
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| Cancellation | 2002-12-01 |
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| Frequency range | 463.5 - 468.5 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | WASHINGTON, DC |
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| Coordinates | 38.9306667, -77.0708056 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:09:47 |
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Licensee
| Name | MASTER SECURITY INC |
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| Applicant type | C |
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| FRN | 0002159705 |
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| Location | HUNT VALLEY, MD |
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| Address | 10944C BEAVER DAM RD, HUNT VALLEY, MD, 21030 |
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| Phone | 2027865097 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB4 | 463.50000000 | | | 75.000000 | 270.000000 | |
| 2 | 1 | MO | 463.50000000 | | | 10.000000 | | |
| 2 | 1 | MO | 468.50000000 | | | 10.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.50000000 | | 20K0F3E |
| 2 | 1 | 463.50000000 | | 20K0F3E |
| 2 | 1 | 468.50000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | WISCONSIN AND MASSACHUSETTS AVE, WASHINGTON, DC | 38.93066667, -77.07080556 | 113.000 m | | | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 79.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1401 NEW YORK AVE, WASHINGTON, DC | | 2027865097 |
License history
| Date | File or call sign | Action |
|---|
| 2002-12-01 | WNJN264 | LIEXP |
| 2002-04-29 | WNJN264 | LETRES |
| 2001-11-15 | WNJN264 | AUDOPR |
| 2000-11-23 | WNJN264 | LICCNV |
| 1997-07-11 | WNJN264 | AUTHPR |
| 1997-07-11 | WNJN264 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1659311 | 2026-08-02 01:09:47 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNJN264 | ULS 1659311 | 2026-08-02 01:09:47 |
| Status | E | ULS 1659311 | 2026-08-02 01:09:47 |
| Service | IG | ULS 1659311 | 2026-08-02 01:09:47 |
| Grant Date | 1997-07-11 | ULS 1659311 | 2026-08-02 01:09:47 |
| Expiration Date | 2002-07-27 | ULS 1659311 | 2026-08-02 01:09:47 |
| Cancellation Date | 2002-12-01 | ULS 1659311 | 2026-08-02 01:09:47 |