Universal Licensing System
WPTB381
SEMPCO SURVEYING INC
License details
| ULS identifier | 2345744 |
|---|
| Call sign | WPTB381 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2011-07-12 |
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| Expiration | 2021-08-22 |
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| Cancellation | 2021-10-23 |
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| Frequency range | 464.5 - 469.55 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | TX |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:03 |
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Licensee
| Name | SEMPCO SURVEYING INC |
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| Applicant type | C |
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| FRN | 0005775168 |
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| Location | FT WORTH, TX |
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| Address | 3208 SOUTH MAIN STREET, FT WORTH, TX, 76110 |
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| Phone | 8179267876 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MOI | 464.50000000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 464.55000000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 469.50000000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 469.55000000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.50000000 | | 11K2F1D |
| 1 | 1 | 464.55000000 | | 11K2F1D |
| 1 | 1 | 469.50000000 | | 11K2F1D |
| 1 | 1 | 469.55000000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | TX | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 3208 SOUTH MAIN STREET, FT WORTH, TX | TARRANT | 8179267876 |
License history
| Date | File or call sign | Action |
|---|
| 2021-10-23 | WPTB381 | LIEXP |
| 2021-05-31 | WPTB381 | LETRES |
| 2013-03-07 | WPTB381 | LIMOD |
| 2012-11-27 | WPTB381 | ESCAPR |
| 2011-07-12 | WPTB381 | LIREN |
| 2011-07-09 | WPTB381 | ESCAPR |
| 2011-05-30 | WPTB381 | LETRES |
| 2008-07-03 | WPTB381 | LIAUA |
| 2008-07-03 | WPTB381 | LTSAPR |
| 2001-09-20 | WPTB381 | LIAUA |
| 2001-08-22 | WPTB381 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2345744 | 2026-08-02 01:14:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPTB381 | ULS 2345744 | 2026-08-02 01:14:03 |
| Status | E | ULS 2345744 | 2026-08-02 01:14:03 |
| Service | IG | ULS 2345744 | 2026-08-02 01:14:03 |
| Grant Date | 2011-07-12 | ULS 2345744 | 2026-08-02 01:14:03 |
| Expiration Date | 2021-08-22 | ULS 2345744 | 2026-08-02 01:14:03 |
| Cancellation Date | 2021-10-23 | ULS 2345744 | 2026-08-02 01:14:03 |