Universal Licensing System
WPKP556
VANGUARD GEOPHYSICAL SERVICES INC
License details
| ULS identifier | 1749397 |
|---|
| Call sign | WPKP556 |
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| Radio service | IG |
|---|
| Status | E |
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| Grant date | 1997-06-02 |
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| Expiration | 2002-06-02 |
|---|
| Cancellation | 2002-10-06 |
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| Frequency range | 464.6 - 469.75 MHz (12 frequencies) |
|---|
| Locations | 2 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:02 |
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Licensee
| Name | VANGUARD GEOPHYSICAL SERVICES INC |
|---|
| Applicant type | C |
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| Location | HOUSTON, TX |
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| Address | 1010 LAMAR ST, HOUSTON, TX, 77002 |
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| Phone | 7136506161 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXOT | 464.60000000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.60000000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.60000000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.62500000 | | | 110.000000 | | |
| 1 | 1 | FXOT | 464.62500000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.62500000 | | | 110.000000 | | |
| 1 | 1 | FXOT | 464.65000000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.65000000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.65000000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.70000000 | | | 110.000000 | | |
| 1 | 1 | FXOT | 464.70000000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.70000000 | | | 110.000000 | | |
| 1 | 1 | FXOT | 464.72500000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.72500000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.72500000 | | | 110.000000 | | |
| 1 | 1 | FXOT | 464.75000000 | | | 110.000000 | | |
| 1 | 1 | FB2T | 464.75000000 | | | 110.000000 | | |
| 2 | 1 | MO | 464.75000000 | | | 110.000000 | | |
| 2 | 1 | MO | 469.60000000 | | | 5.000000 | 110.000000 | |
| 2 | 1 | MO | 469.62500000 | | | 5.000000 | 110.000000 | |
| 2 | 1 | MO | 469.65000000 | | | 5.000000 | 110.000000 | |
| 2 | 1 | MO | 469.70000000 | | | 5.000000 | 110.000000 | |
| 2 | 1 | MO | 469.72500000 | | | 5.000000 | 110.000000 | |
| 2 | 1 | MO | 469.75000000 | | | 5.000000 | 110.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.60000000 | | 20K0F1D |
| 1 | 1 | 464.60000000 | | 20K0F3E |
| 2 | 1 | 464.60000000 | | 20K0F3E |
| 1 | 1 | 464.62500000 | | 20K0F1D |
| 1 | 1 | 464.62500000 | | 20K0F3E |
| 2 | 1 | 464.62500000 | | 20K0F3E |
| 1 | 1 | 464.65000000 | | 20K0F1D |
| 1 | 1 | 464.65000000 | | 20K0F3E |
| 2 | 1 | 464.65000000 | | 20K0F3E |
| 1 | 1 | 464.70000000 | | 20K0F1D |
| 1 | 1 | 464.70000000 | | 20K0F3E |
| 2 | 1 | 464.70000000 | | 20K0F3E |
| 1 | 1 | 464.72500000 | | 20K0F1D |
| 1 | 1 | 464.72500000 | | 20K0F3E |
| 2 | 1 | 464.72500000 | | 20K0F3E |
| 1 | 1 | 464.75000000 | | 20K0F1D |
| 1 | 1 | 464.75000000 | | 20K0F3E |
| 2 | 1 | 464.75000000 | | 20K0F3E |
| 2 | 1 | 469.60000000 | | 20K0F3E |
| 2 | 1 | 469.60000000 | | 20K0F1D |
| 2 | 1 | 469.62500000 | | 20K0F1D |
| 2 | 1 | 469.62500000 | | 20K0F3E |
| 2 | 1 | 469.65000000 | | 20K0F3E |
| 2 | 1 | 469.65000000 | | 20K0F1D |
| 2 | 1 | 469.70000000 | | 20K0F1D |
| 2 | 1 | 469.70000000 | | 20K0F3E |
| 2 | 1 | 469.72500000 | | 20K0F1D |
| 2 | 1 | 469.72500000 | | 20K0F3E |
| 2 | 1 | 469.75000000 | | 20K0F1D |
| 2 | 1 | 469.75000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1010 LAMAR ST, HOUSTON, TX | | 7136506161 |
License history
| Date | File or call sign | Action |
|---|
| 2002-10-06 | WPKP556 | LIEXP |
| 2002-05-20 | WPKP556 | AUDOPR |
| 2002-03-11 | WPKP556 | LETRES |
| 2000-11-23 | WPKP556 | LICCNV |
| 1997-06-02 | WPKP556 | LIISS |
| 1997-06-02 | WPKP556 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1749397 | 2026-08-02 01:29:02 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKP556 | ULS 1749397 | 2026-08-02 01:29:02 |
| Status | E | ULS 1749397 | 2026-08-02 01:29:02 |
| Service | IG | ULS 1749397 | 2026-08-02 01:29:02 |
| Grant Date | 1997-06-02 | ULS 1749397 | 2026-08-02 01:29:02 |
| Expiration Date | 2002-06-02 | ULS 1749397 | 2026-08-02 01:29:02 |
| Cancellation Date | 2002-10-06 | ULS 1749397 | 2026-08-02 01:29:02 |