Universal Licensing System
WNXI644
Helena Chemical Co.
License details
| ULS identifier | 1688635 |
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| Call sign | WNXI644 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-08-25 |
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| Expiration | 2011-09-16 |
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| Cancellation | 2011-11-19 |
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| Frequency range | 463.25 - 468.25 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | HOUSTON, HARRIS, TX |
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| Coordinates | 29.7552222, -95.3616111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:09:49 |
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Licensee
| Name | Helena Chemical Co. |
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| Applicant type | C |
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| FRN | 0005787791 |
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| Location | East Bernard, TX |
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| Address | East Bernard, TX, 77435 |
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| Phone | 9793357525 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB4 | 463.25000000 | | | 50.000000 | 350.000000 | |
| 2 | 1 | MO | 463.25000000 | | | 100.000000 | | |
| 2 | 1 | MO | 468.25000000 | | | 100.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 463.25000000 | | 20K0F3E |
| 2 | 1 | 463.25000000 | | 20K0F3E |
| 2 | 1 | 468.25000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1 HOUSTON CTR 909 FANNIN RD, HOUSTON, HARRIS, TX | 29.75522222, -95.36161111 | 17.000 m | | 207.000 m structure / 207.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 207.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | STEVENS RADIO COMMUNICATIONS 2503 WOODWIND DR, RICHMOND, TX | | 8643425741 |
License history
| Date | File or call sign | Action |
|---|
| 2011-11-19 | WNXI644 | LIEXP |
| 2011-06-20 | WNXI644 | LETRES |
| 2004-03-09 | WNXI644 | AUDOPR |
| 2001-10-15 | WNXI644 | LIASS |
| 2001-08-25 | WNXI644 | LIREN |
| 2001-08-25 | WNXI644 | LIAUA |
| 2001-06-25 | WNXI644 | LETRES |
| 2000-11-23 | WNXI644 | LICCNV |
| 1996-07-15 | WNXI644 | AUTHPR |
| 1996-07-15 | WNXI644 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1688635 | 2026-08-02 01:09:49 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNXI644 | ULS 1688635 | 2026-08-02 01:09:49 |
| Status | E | ULS 1688635 | 2026-08-02 01:09:49 |
| Service | IG | ULS 1688635 | 2026-08-02 01:09:49 |
| Grant Date | 2001-08-25 | ULS 1688635 | 2026-08-02 01:09:49 |
| Expiration Date | 2011-09-16 | ULS 1688635 | 2026-08-02 01:09:49 |
| Cancellation Date | 2011-11-19 | ULS 1688635 | 2026-08-02 01:09:49 |