Universal Licensing System
WQBM409
Martin Marietta Materials
License details
| ULS identifier | 2668274 |
|---|
| Call sign | WQBM409 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2014-10-25 |
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| Expiration | 2024-11-04 |
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| Cancellation | 2025-01-04 |
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| Frequency range | 451.7375 MHz |
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| Locations | 2 |
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| Representative location | WILLIAMSPORT, WASHINGTON, MD |
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| Coordinates | 39.6208889, -77.8652500 |
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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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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 451.73750000 | | | 40.000000 | 40.000000 | |
| 2 | 1 | MO | 451.73750000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.73750000 | | 11K2F3E |
| 2 | 1 | 451.73750000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 14932 BOTTOM ROAD, WILLIAMSPORT, WASHINGTON, MD | 39.62088889, -77.86525000 | 141.300 m | BANT | 9.100 m structure / 10.900 m overall | |
| 2 | T | WILLIAMSPORT, WASHINGTON, MD | 39.62088889, -77.86525000 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 10.900 m | | 0.0000 | 0.0000 | -14.000 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 14932 BOTTOM ROAD, WILLIAMSPORT, MD | WASHINGTON | 3015821100 |
License history
| Date | File or call sign | Action |
|---|
| 2025-01-04 | WQBM409 | LIEXP |
| 2024-08-12 | WQBM409 | LETRES |
| 2018-09-22 | WQBM409 | LIAUA |
| 2018-05-04 | WQBM409 | LIAUA |
| 2014-10-25 | WQBM409 | LIREN |
| 2014-08-11 | WQBM409 | LETRES |
| 2013-05-18 | WQBM409 | LIAUA |
| 2013-05-17 | WQBM409 | ESCAPR |
| 2013-02-02 | WQBM409 | LIAUA |
| 2013-02-01 | WQBM409 | ESUAPR |
| 2004-11-04 | WQBM409 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2668274 | 2026-08-02 01:09:47 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQBM409 | ULS 2668274 | 2026-08-02 01:09:47 |
| Status | E | ULS 2668274 | 2026-08-02 01:09:47 |
| Service | IG | ULS 2668274 | 2026-08-02 01:09:47 |
| Grant Date | 2014-10-25 | ULS 2668274 | 2026-08-02 01:09:47 |
| Expiration Date | 2024-11-04 | ULS 2668274 | 2026-08-02 01:09:47 |
| Cancellation Date | 2025-01-04 | ULS 2668274 | 2026-08-02 01:09:47 |