Universal Licensing System
WSEF490
ECHO OCEAN SCIENCE LLC
License details
| ULS identifier | 4997288 |
|---|
| Call sign | WSEF490 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2024-08-15 |
|---|
| Expiration | 2034-08-15 |
|---|
| Frequency range | 451.8 - 464.55 MHz (4 frequencies) |
|---|
| Locations | 1 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:02 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MOI | 451.80000000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 451.81250000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 464.50000000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | MOI | 464.55000000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.80000000 | | 11K2F3D |
| 1 | 1 | 451.80000000 | | 9K75F1D |
| 1 | 1 | 451.80000000 | | 11K2F3E |
| 1 | 1 | 451.81250000 | | 9K75F1D |
| 1 | 1 | 451.81250000 | | 11K2F3D |
| 1 | 1 | 451.81250000 | | 11K2F3E |
| 1 | 1 | 464.50000000 | | 11K2F3D |
| 1 | 1 | 464.50000000 | | 9K75F1D |
| 1 | 1 | 464.50000000 | | 11K2F3E |
| 1 | 1 | 464.55000000 | | 11K2F3D |
| 1 | 1 | 464.55000000 | | 9K75F1D |
| 1 | 1 | 464.55000000 | | 11K2F3E |
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 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 19703 CARDIFF PARK LANE, HOUSTON, TX | HARRIS | 3464362534 |
License history
| Date | File or call sign | Action |
|---|
| 2024-08-15 | WSEF490 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4997288 | 2026-08-02 01:23:02 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WSEF490 | ULS 4997288 | 2026-08-02 01:23:02 |
| Status | A | ULS 4997288 | 2026-08-02 01:23:02 |
| Service | IG | ULS 4997288 | 2026-08-02 01:23:02 |
| Grant Date | 2024-08-15 | ULS 4997288 | 2026-08-02 01:23:02 |
| Expiration Date | 2034-08-15 | ULS 4997288 | 2026-08-02 01:23:02 |