Universal Licensing System
WPOX504
MASTER TEK INTERNATIONAL INC
License details
| ULS identifier | 1813607 |
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| Call sign | WPOX504 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-06-16 |
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| Expiration | 2014-08-24 |
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| Cancellation | 2014-10-25 |
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| Frequency range | 457.025 MHz |
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| Locations | 1 |
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| Representative location | SAN DIEGO, CA |
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| Coordinates | 32.8367222, -116.9733611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:24 |
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Licensee
| Name | MASTER TEK INTERNATIONAL INC |
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| Applicant type | C |
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| FRN | 0007539489 |
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| Location | WESTMINSTER, CO |
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| Address | 9168 MARSHALL PL, WESTMINSTER, CO, 80030 |
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| Phone | 3036506700 |
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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 | 457.02500000 | | | 2.000000 | 0.191000 | |
| 1 | 1 | MO | 457.02500000 | | | 2.000000 | 0.191000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 457.02500000 | | 20K0F1D |
| 1 | 1 | 457.02500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SAN DIEGO, CA | 32.83672222, -116.97336111 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 9168 MARSHALL PL, WESTMINSTER, CO | | 3036506700 |
License history
| Date | File or call sign | Action |
|---|
| 2014-10-25 | WPOX504 | LIEXP |
| 2014-06-02 | WPOX504 | LETRES |
| 2004-06-16 | WPOX504 | LIREN |
| 2004-05-31 | WPOX504 | LETRES |
| 2002-03-08 | WPOX504 | AUDOPR |
| 2000-11-23 | WPOX504 | LICCNV |
| 1999-08-24 | WPOX504 | LIISS |
| 1999-08-24 | WPOX504 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1813607 | 2026-08-02 01:16:24 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPOX504 | ULS 1813607 | 2026-08-02 01:16:24 |
| Status | E | ULS 1813607 | 2026-08-02 01:16:24 |
| Service | IG | ULS 1813607 | 2026-08-02 01:16:24 |
| Grant Date | 2004-06-16 | ULS 1813607 | 2026-08-02 01:16:24 |
| Expiration Date | 2014-08-24 | ULS 1813607 | 2026-08-02 01:16:24 |
| Cancellation Date | 2014-10-25 | ULS 1813607 | 2026-08-02 01:16:24 |