Universal Licensing System
WQDN936
Security Administration services Inc.
License details
| ULS identifier | 2753899 |
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| Call sign | WQDN936 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2005-10-12 |
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| Expiration | 2006-04-10 |
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| Cancellation | 2006-06-10 |
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| Frequency range | 461.975 - 466.975 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | baltimore, BALTIMORE CITY, MD |
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| Coordinates | 39.3387222, -76.6666389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:53 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 461.97500000 | | | 75.000000 | 75.000000 | |
| 2 | 1 | FX1 | 466.97500000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 466.97500000 | | | 45.000000 | 45.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.97500000 | | 20K0F3E |
| 2 | 1 | 466.97500000 | | 20K0F3E |
| 3 | 1 | 466.97500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4340 park heights ave, baltimore, BALTIMORE CITY, MD | 39.33872222, -76.66663889 | 124.000 m | BANT | 128.000 m structure / 128.000 m overall | |
| 2 | T | BALTIMORE, MD | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 128.000 m | | | | 120.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 421 eastern blvd essex md., essex, MD | BALTIMORE | 4107800010 |
License history
| Date | File or call sign | Action |
|---|
| 2006-06-10 | WQDN936 | LIEXP |
| 2005-10-12 | WQDN936 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2753899 | 2026-08-02 01:11:53 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQDN936 | ULS 2753899 | 2026-08-02 01:11:53 |
| Status | E | ULS 2753899 | 2026-08-02 01:11:53 |
| Service | IG | ULS 2753899 | 2026-08-02 01:11:53 |
| Grant Date | 2005-10-12 | ULS 2753899 | 2026-08-02 01:11:53 |
| Expiration Date | 2006-04-10 | ULS 2753899 | 2026-08-02 01:11:53 |
| Cancellation Date | 2006-06-10 | ULS 2753899 | 2026-08-02 01:11:53 |