Universal Licensing System
WPLI909
GREAT LAKES DREDGE AND DOCK COMPANY
License details
| ULS identifier | 1757241 |
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| Call sign | WPLI909 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-09-29 |
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| Expiration | 2002-09-29 |
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| Cancellation | 2003-01-12 |
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| Frequency range | 464.6 - 464.7 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | US |
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| Coordinates | 41.8744722, -87.6395000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:22 |
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Licensee
| Name | GREAT LAKES DREDGE AND DOCK COMPANY |
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| Applicant type | C |
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| FRN | 0004162376 |
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| Location | OAKBROOK, IL |
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| Address | 2122 YORK RD, OAKBROOK, IL, 60521 |
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| Phone | 6305743000 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FBT | 464.60000000 | | | 4.000000 | | |
| 2 | 1 | MO | 464.60000000 | | | 4.000000 | | |
| 1 | 1 | FBT | 464.62500000 | | | 4.000000 | | |
| 2 | 1 | MO | 464.62500000 | | | 4.000000 | | |
| 1 | 1 | FBT | 464.67500000 | | | 4.000000 | | |
| 2 | 1 | MO | 464.67500000 | | | 4.000000 | | |
| 1 | 1 | FBT | 464.70000000 | | | 4.000000 | | |
| 2 | 1 | MO | 464.70000000 | | | 4.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.60000000 | | 20K0F1D |
| 1 | 1 | 464.60000000 | | 20K0F2D |
| 2 | 1 | 464.60000000 | | 20K0F1D |
| 2 | 1 | 464.60000000 | | 20K0F2D |
| 1 | 1 | 464.62500000 | | 20K0F1D |
| 1 | 1 | 464.62500000 | | 20K0F2D |
| 2 | 1 | 464.62500000 | | 20K0F2D |
| 2 | 1 | 464.62500000 | | 20K0F1D |
| 1 | 1 | 464.67500000 | | 20K0F2D |
| 1 | 1 | 464.67500000 | | 20K0F1D |
| 2 | 1 | 464.67500000 | | 20K0F2D |
| 2 | 1 | 464.67500000 | | 20K0F1D |
| 1 | 1 | 464.70000000 | | 20K0F1D |
| 1 | 1 | 464.70000000 | | 20K0F2D |
| 2 | 1 | 464.70000000 | | 20K0F2D |
| 2 | 1 | 464.70000000 | | 20K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | US | 41.87447222, -87.63950000 | | | | |
| 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 |
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| 1 | | | 6305743000 |
License history
| Date | File or call sign | Action |
|---|
| 2003-01-12 | WPLI909 | LIEXP |
| 2002-07-08 | WPLI909 | LETRES |
| 2001-10-01 | WPLI909 | AUDOPR |
| 2000-11-23 | WPLI909 | LICCNV |
| 1997-09-29 | WPLI909 | AUTHPR |
| 1997-09-29 | WPLI909 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1757241 | 2026-08-02 01:14:22 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPLI909 | ULS 1757241 | 2026-08-02 01:14:22 |
| Status | E | ULS 1757241 | 2026-08-02 01:14:22 |
| Service | IG | ULS 1757241 | 2026-08-02 01:14:22 |
| Grant Date | 1997-09-29 | ULS 1757241 | 2026-08-02 01:14:22 |
| Expiration Date | 2002-09-29 | ULS 1757241 | 2026-08-02 01:14:22 |
| Cancellation Date | 2003-01-12 | ULS 1757241 | 2026-08-02 01:14:22 |