Universal Licensing System
WPKR235
B & B SECURITY SERVICES INC
License details
| ULS identifier | 1750326 |
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| Call sign | WPKR235 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-06-12 |
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| Expiration | 2002-06-12 |
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| Cancellation | 2002-10-13 |
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| Frequency range | 463.325 - 468.325 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | WASHINGTON, DC |
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| Coordinates | 38.8987222, -77.0713611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:03 |
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Licensee
| Name | B & B SECURITY SERVICES INC |
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| Applicant type | C |
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| Location | HYATTSVILLE, MD |
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| Address | 5611 LANDOVER RD STE 200, HYATTSVILLE, MD, 20784 |
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| Phone | 3012778530 |
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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 | FB4 | 463.32500000 | | | 110.000000 | 373.000000 | |
| 2 | 1 | MO | 463.32500000 | | | 60.000000 | | |
| 2 | 1 | MO | 468.32500000 | | | 60.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.32500000 | | 20K0F3E |
| 2 | 1 | 463.32500000 | | 20K0F3E |
| 2 | 1 | 468.32500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 3315 WISCONSIN AVE NW, WASHINGTON, DC | 38.89872222, -77.07136111 | 119.000 m | TOWER | 34.000 m structure / 40.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 40.000 m | | | | 97.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 4703 WEBSTER ST, BLADENSBURG, MD | | 3012778530 |
License history
| Date | File or call sign | Action |
|---|
| 2002-10-13 | WPKR235 | LIEXP |
| 2002-04-17 | WPKR235 | LETAUS |
| 2002-03-18 | WPKR235 | LETRES |
| 2000-11-23 | WPKR235 | LICCNV |
| 1997-06-12 | WPKR235 | LIISS |
| 1997-06-12 | WPKR235 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1750326 | 2026-08-02 01:29:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKR235 | ULS 1750326 | 2026-08-02 01:29:03 |
| Status | E | ULS 1750326 | 2026-08-02 01:29:03 |
| Service | IG | ULS 1750326 | 2026-08-02 01:29:03 |
| Grant Date | 1997-06-12 | ULS 1750326 | 2026-08-02 01:29:03 |
| Expiration Date | 2002-06-12 | ULS 1750326 | 2026-08-02 01:29:03 |
| Cancellation Date | 2002-10-13 | ULS 1750326 | 2026-08-02 01:29:03 |