Universal Licensing System
WPKP277
TRI D GEOPHYSICS INC
License details
| ULS identifier | 1843166 |
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| Call sign | WPKP277 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-05-23 |
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| Expiration | 2002-05-23 |
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| Cancellation | 2002-09-22 |
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| Frequency range | 153.05 - 153.32 MHz (8 frequencies) |
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| Locations | 1 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:13 |
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Licensee
| Name | TRI D GEOPHYSICS INC |
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| Applicant type | C |
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| FRN | 0001637958 |
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| Location | KATY, TX |
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| Address | KATY, TX, 774920313 |
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| Phone | 7133710811 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 153.05000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.08000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.11000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.14000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.20000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.23000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.29000000 | | | 50.000000 | | |
| 1 | 1 | MO | 153.32000000 | | | 50.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 153.05000000 | | 20K0F3E |
| 1 | 1 | 153.08000000 | | 20K0F3E |
| 1 | 1 | 153.11000000 | | 20K0F3E |
| 1 | 1 | 153.14000000 | | 20K0F3E |
| 1 | 1 | 153.20000000 | | 20K0F3E |
| 1 | 1 | 153.23000000 | | 20K0F3E |
| 1 | 1 | 153.29000000 | | 20K0F3E |
| 1 | 1 | 153.32000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | |
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 | 4320 KATY HOCKLEY RD, KATY, TX | | 7133710811 |
License history
| Date | File or call sign | Action |
|---|
| 2002-09-22 | WPKP277 | LIEXP |
| 2002-04-15 | WPKP277 | LETAUS |
| 2002-02-25 | WPKP277 | LETRES |
| 2000-11-23 | WPKP277 | LICCNV |
| 1997-05-23 | WPKP277 | LIISS |
| 1997-05-23 | WPKP277 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1843166 | 2026-08-02 01:13:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKP277 | ULS 1843166 | 2026-08-02 01:13:13 |
| Status | E | ULS 1843166 | 2026-08-02 01:13:13 |
| Service | IG | ULS 1843166 | 2026-08-02 01:13:13 |
| Grant Date | 1997-05-23 | ULS 1843166 | 2026-08-02 01:13:13 |
| Expiration Date | 2002-05-23 | ULS 1843166 | 2026-08-02 01:13:13 |
| Cancellation Date | 2002-09-22 | ULS 1843166 | 2026-08-02 01:13:13 |