Universal Licensing System
WPNX750
COMMERCIAL ELECTRONIC SERVICES INC
License details
| ULS identifier | 1924919 |
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| Call sign | WPNX750 |
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| Radio service | YG |
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| Status | E |
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| Grant date | 1999-07-27 |
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| Expiration | 2004-07-27 |
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| Cancellation | 2004-09-26 |
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| Frequency range | 451.8625 - 457.775 MHz (10 frequencies) |
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| Locations | 6 |
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| Representative location | HAYMARKET, PRINCE WILLIAM, VA |
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| Coordinates | 38.9067778, -77.6716667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:28:03 |
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Licensee
| Name | COMMERCIAL ELECTRONIC SERVICES INC |
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| Applicant type | C |
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| Location | WALDORF, MD |
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| Address | 3225 OLD WASHINGTON RD, WALDORF, MD, 20602 |
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| Phone | 3018438944 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB8 | 451.86250000 | | | 100.000000 | 250.000000 | |
| 6 | 1 | MO | 451.86250000 | | | 40.000000 | | |
| 1 | 1 | FB8 | 451.98750000 | | | 100.000000 | 137.000000 | |
| 5 | 1 | MO | 451.98750000 | | | 40.000000 | | |
| 2 | 1 | FB8 | 452.20000000 | | | 100.000000 | 250.000000 | |
| 6 | 1 | MO | 452.20000000 | | | 40.000000 | | |
| 2 | 1 | FB8 | 452.46250000 | | | 100.000000 | 250.000000 | |
| 6 | 1 | MO | 452.46250000 | | | 40.000000 | | |
| 2 | 1 | FB8 | 452.77500000 | | | 100.000000 | 250.000000 | |
| 6 | 1 | MO | 452.77500000 | | | 40.000000 | | |
| 4 | 1 | FX1 | 456.86250000 | | | 40.000000 | | |
| 6 | 1 | MO | 456.86250000 | | | 40.000000 | | |
| 3 | 1 | FX1 | 456.98750000 | | | 40.000000 | | |
| 5 | 1 | MO | 456.98750000 | | | 40.000000 | | |
| 4 | 1 | FX1 | 457.20000000 | | | 40.000000 | | |
| 6 | 1 | MO | 457.20000000 | | | 40.000000 | | |
| 4 | 1 | FX1 | 457.46250000 | | | 40.000000 | | |
| 6 | 1 | MO | 457.46250000 | | | 40.000000 | | |
| 4 | 1 | FX1 | 457.77500000 | | | 40.000000 | | |
| 6 | 1 | MO | 457.77500000 | | | 40.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.86250000 | | 11K2F3E |
| 6 | 1 | 451.86250000 | | 11K2F3E |
| 1 | 1 | 451.98750000 | | 11K2F3E |
| 5 | 1 | 451.98750000 | | 11K2F3E |
| 2 | 1 | 452.20000000 | | 11K2F3E |
| 6 | 1 | 452.20000000 | | 11K2F3E |
| 2 | 1 | 452.46250000 | | 11K2F3E |
| 6 | 1 | 452.46250000 | | 11K2F3E |
| 2 | 1 | 452.77500000 | | 11K2F3E |
| 6 | 1 | 452.77500000 | | 11K2F3E |
| 4 | 1 | 456.86250000 | | 11K2F3E |
| 6 | 1 | 456.86250000 | | 11K2F3E |
| 3 | 1 | 456.98750000 | | 11K2F3E |
| 5 | 1 | 456.98750000 | | 11K2F3E |
| 4 | 1 | 457.20000000 | | 11K2F3E |
| 6 | 1 | 457.20000000 | | 11K2F3E |
| 4 | 1 | 457.46250000 | | 11K2F3E |
| 6 | 1 | 457.46250000 | | 11K2F3E |
| 4 | 1 | 457.77500000 | | 11K2F3E |
| 6 | 1 | 457.77500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | BULL RUN MTN 2404 RIDGE RD, HAYMARKET, PRINCE WILLIAM, VA | 38.90677778, -77.67166667 | 351.000 m | TOWER | 33.000 m structure / 33.000 m overall | N |
| 2 | T | 26726 POINT LOOKOUT RD, LEONARDTOWN, ST. MARY'S, MD | 38.32041667, -76.66913889 | 36.000 m | TOWER | 84.000 m structure / 85.000 m overall | N |
| 3 | T | VA | | | | | |
| 4 | T | MD | | | | | |
| 5 | T | | | | | | |
| 6 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 30.000 m | | | | 238.000 | |
| 1 | 2 | T | | 85.000 m | | | | 103.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 3225 OLD WASHINGTON RD, WALDORF, MD | | 3018438944 |
License history
| Date | File or call sign | Action |
|---|
| 2004-09-26 | WPNX750 | LIEXP |
| 2004-05-03 | WPNX750 | LETRES |
| 2003-09-22 | WPNX750 | AUTHPR |
| 2003-09-18 | WPNX750 | INTDUP |
| 2003-09-18 | WPNX750 | COR |
| 2001-12-13 | WPNX750 | AUDOPR |
| 2000-11-24 | WPNX750 | LICCNV |
| 1999-07-27 | WPNX750 | AUTHPR |
| 1999-07-27 | WPNX750 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1924919 | 2026-08-02 01:28:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPNX750 | ULS 1924919 | 2026-08-02 01:28:03 |
| Status | E | ULS 1924919 | 2026-08-02 01:28:03 |
| Service | YG | ULS 1924919 | 2026-08-02 01:28:03 |
| Grant Date | 1999-07-27 | ULS 1924919 | 2026-08-02 01:28:03 |
| Expiration Date | 2004-07-27 | ULS 1924919 | 2026-08-02 01:28:03 |
| Cancellation Date | 2004-09-26 | ULS 1924919 | 2026-08-02 01:28:03 |