Universal Licensing System
WREN539
Whelan Security Mid Atlantic, Inc d/b/a GardaWorld Security Services
License details
| ULS identifier | 4219681 |
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| Call sign | WREN539 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2019-11-13 |
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| Expiration | 2029-11-13 |
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| Frequency range | 451.3875 - 456.4125 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | Washington, DC |
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| Coordinates | 38.8715278, -76.9731944 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:23 |
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Licensee
| Name | Whelan Security Mid Atlantic, Inc d/b/a GardaWorld Security Services |
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| Applicant type | C |
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| FRN | 0028959187 |
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| Location | Washington DC, DC |
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| Address | 5252 23rd Street NW, Washington DC, DC, 20037 |
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| Phone | 3014592355 |
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| Email | [email protected] |
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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 | MO | 451.38750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 451.41250000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.33750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.38750000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | MO | 456.41250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.38750000 | | 11K0F1E |
| 1 | 1 | 451.41250000 | | 11K0F1E |
| 1 | 1 | 456.33750000 | | 11K0F1E |
| 1 | 1 | 456.38750000 | | 11K0F1E |
| 1 | 1 | 456.41250000 | | 11K0F1E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | Washington, DC | 38.87152778, -76.97319444 | | | | |
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 | 5252 23rd Street NW, Washington, DC | | 2029743000 |
License history
| Date | File or call sign | Action |
|---|
| 2020-08-18 | WREN539 | LETCNS |
| 2019-11-13 | WREN539 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 4219681 | 2026-08-02 01:23:23 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WREN539 | ULS 4219681 | 2026-08-02 01:23:23 |
| Status | A | ULS 4219681 | 2026-08-02 01:23:23 |
| Service | IG | ULS 4219681 | 2026-08-02 01:23:23 |
| Grant Date | 2019-11-13 | ULS 4219681 | 2026-08-02 01:23:23 |
| Expiration Date | 2029-11-13 | ULS 4219681 | 2026-08-02 01:23:23 |