Universal Licensing System
WPKU931
HYDROCHEM INDUSTRIAL SERVICES
License details
| ULS identifier | 1752016 |
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| Call sign | WPKU931 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-07-29 |
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| Expiration | 2002-07-29 |
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| Cancellation | 2002-12-01 |
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| Frequency range | 461.0125 - 469.9 MHz (6 frequencies) |
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| Locations | 2 |
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| Representative location | FREEPORT, BRAZORIA, TX |
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| Coordinates | 29.0660833, -95.3216111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:04 |
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Licensee
| Name | HYDROCHEM INDUSTRIAL SERVICES |
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| Applicant type | C |
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| Location | FREEPORT, TX |
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| Address | 6723 E HWY 332, FREEPORT, TX, 77541 |
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| Phone | 4092338305 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 461.01250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 461.66250000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | FB4 | 464.90000000 | | | 100.000000 | 266.000000 | |
| 2 | 1 | MO | 464.90000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 466.01250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 466.66250000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 469.90000000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 461.01250000 | | 20K0F3E |
| 2 | 1 | 461.66250000 | | 20K0F3E |
| 1 | 1 | 464.90000000 | | 20K0F3E |
| 2 | 1 | 464.90000000 | | 20K0F3E |
| 2 | 1 | 466.01250000 | | 20K0F3E |
| 2 | 1 | 466.66250000 | | 20K0F3E |
| 2 | 1 | 469.90000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 4818 N GULF BLVD, FREEPORT, BRAZORIA, TX | 29.06608333, -95.32161111 | 3.000 m | TOWER | 175.000 m structure / 175.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 137.000 m | | | | 0.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 6723 E HWY 332, FREEPORT, TX | | 4092338305 |
License history
| Date | File or call sign | Action |
|---|
| 2002-12-01 | WPKU931 | LIEXP |
| 2002-05-06 | WPKU931 | LETRES |
| 2002-04-09 | WPKU931 | AUDOPR |
| 2000-11-23 | WPKU931 | LICCNV |
| 1997-07-29 | WPKU931 | LIISS |
| 1997-07-29 | WPKU931 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1752016 | 2026-08-02 01:29:04 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKU931 | ULS 1752016 | 2026-08-02 01:29:04 |
| Status | E | ULS 1752016 | 2026-08-02 01:29:04 |
| Service | IG | ULS 1752016 | 2026-08-02 01:29:04 |
| Grant Date | 1997-07-29 | ULS 1752016 | 2026-08-02 01:29:04 |
| Expiration Date | 2002-07-29 | ULS 1752016 | 2026-08-02 01:29:04 |
| Cancellation Date | 2002-12-01 | ULS 1752016 | 2026-08-02 01:29:04 |