Universal Licensing System
WPKD989
HYDROMAT INC
License details
| ULS identifier | 1744949 |
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| Call sign | WPKD989 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-01-28 |
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| Expiration | 2002-01-28 |
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| Cancellation | 2002-05-05 |
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| Frequency range | 461.0375 - 466.0375 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | ST. LOUIS, MO |
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| Coordinates | 38.6739444, -90.3892778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:00 |
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Licensee
| Name | HYDROMAT INC |
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| Applicant type | C |
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| Location | MARYLAND HEIGHTS, MO |
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| Address | 11600 ADIE RD, MARYLAND HEIGHTS, MO, 63043 |
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| Phone | 3144324644 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 461.03750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 466.03750000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.03750000 | | 20K0F3E |
| 1 | 1 | 466.03750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ST. LOUIS, MO | 38.67394444, -90.38927778 | | | | |
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 |
|---|
| 1 | 11600 ADIE RD, MARYLAND HEIGHTS, MO | | 3144324644 |
License history
| Date | File or call sign | Action |
|---|
| 2002-05-05 | WPKD989 | LIEXP |
| 2001-11-05 | WPKD989 | LETRES |
| 2001-09-19 | WPKD989 | LETAUS |
| 2000-11-23 | WPKD989 | LICCNV |
| 1997-01-28 | WPKD989 | LIISS |
| 1997-01-28 | WPKD989 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1744949 | 2026-08-02 01:29:00 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKD989 | ULS 1744949 | 2026-08-02 01:29:00 |
| Status | E | ULS 1744949 | 2026-08-02 01:29:00 |
| Service | IG | ULS 1744949 | 2026-08-02 01:29:00 |
| Grant Date | 1997-01-28 | ULS 1744949 | 2026-08-02 01:29:00 |
| Expiration Date | 2002-01-28 | ULS 1744949 | 2026-08-02 01:29:00 |
| Cancellation Date | 2002-05-05 | ULS 1744949 | 2026-08-02 01:29:00 |