Universal Licensing System
WPTX974
Washington Suburban Sanitation Comm.
License details
| ULS identifier | 2375020 |
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| Call sign | WPTX974 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2002-01-10 |
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| Expiration | 2012-01-10 |
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| Cancellation | 2012-03-17 |
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| Frequency range | 451.5625 - 456.5625 MHz (3 frequencies) |
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| Locations | 2 |
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| Representative location | Upper Marlboro, CALVERT, MD |
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| Coordinates | 38.7988889, -76.7058333 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:37 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.56250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 452.21250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.56250000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.56250000 | | 11K2F3E |
| 2 | 1 | 452.21250000 | | 11K2F3E |
| 2 | 1 | 456.56250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 6600 Crain Hwy, Upper Marlboro, CALVERT, MD | 38.79888889, -76.70583333 | 45.000 m | B | 7.000 m structure / 10.000 m overall | N |
| 2 | T | | | 0.000 m | | 0.000 m structure / 0.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 10.000 m | | 0.0000 | 0.0000 | 13.400 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 14501 Sweitzer Lane, Laurel, MD | | 3012067183 |
License history
| Date | File or call sign | Action |
|---|
| 2012-03-17 | WPTX974 | LIEXP |
| 2011-11-11 | WPTX974 | LIAUA |
| 2011-11-10 | WPTX974 | ESUAPR |
| 2011-10-17 | WPTX974 | LETRES |
| 2002-10-07 | WPTX974 | LETCNS |
| 2002-10-01 | WPTX974 | LIMOD |
| 2002-06-28 | WPTX974 | LIAUA |
| 2002-01-10 | WPTX974 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2375020 | 2026-08-02 01:11:37 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPTX974 | ULS 2375020 | 2026-08-02 01:11:37 |
| Status | E | ULS 2375020 | 2026-08-02 01:11:37 |
| Service | IG | ULS 2375020 | 2026-08-02 01:11:37 |
| Grant Date | 2002-01-10 | ULS 2375020 | 2026-08-02 01:11:37 |
| Expiration Date | 2012-01-10 | ULS 2375020 | 2026-08-02 01:11:37 |
| Cancellation Date | 2012-03-17 | ULS 2375020 | 2026-08-02 01:11:37 |