Universal Licensing System
WPLF474
GRAYCOR INDUSTRIAL CONSTRUCTORS INC
License details
| ULS identifier | 1873009 |
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| Call sign | WPLF474 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-03-18 |
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| Expiration | 2002-03-18 |
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| Cancellation | 2002-05-19 |
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| Frequency range | 451.8 - 456.825 MHz (3 frequencies) |
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| Locations | 3 |
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| Representative location | GARY, LAKE, IN |
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| Coordinates | 41.6064167, -87.3414167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:27:28 |
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Licensee
| Name | GRAYCOR INDUSTRIAL CONSTRUCTORS INC |
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| Applicant type | C |
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| Location | HOMEWOOD, IL |
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| Address | ONE GRAYCOR DR, HOMEWOOD, IL, 60430 |
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| Phone | 7732216262 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 2 | 1 | MOI | 451.80000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 451.82500000 | | | 45.000000 | 61.000000 | |
| 3 | 1 | MO | 451.82500000 | | | 20.000000 | 20.000000 | |
| 3 | 1 | MO | 456.82500000 | | | 20.000000 | 20.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.80000000 | | 20K0F3E |
| 1 | 1 | 451.82500000 | | 20K0F3E |
| 3 | 1 | 451.82500000 | | 20K0F3E |
| 3 | 1 | 456.82500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ONE N BROADWAY, GARY, LAKE, IN | 41.60641667, -87.34141667 | 177.000 m | TOWER | 11.000 m structure / 13.000 m overall | N |
| 2 | T | IN | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 13.000 m | | | | 181.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | ONE GRAYCOR DR, HOMEWOOD, IL | | 7732216262 |
License history
| Date | File or call sign | Action |
|---|
| 2002-05-19 | WPLF474 | LIEXP |
| 2001-12-26 | WPLF474 | LETRES |
| 2000-11-24 | WPLF474 | LICCNV |
| 1997-03-18 | WPLF474 | AUTHPR |
| 1997-03-18 | WPLF474 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1873009 | 2026-08-02 01:27:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPLF474 | ULS 1873009 | 2026-08-02 01:27:28 |
| Status | E | ULS 1873009 | 2026-08-02 01:27:28 |
| Service | IG | ULS 1873009 | 2026-08-02 01:27:28 |
| Grant Date | 1997-03-18 | ULS 1873009 | 2026-08-02 01:27:28 |
| Expiration Date | 2002-03-18 | ULS 1873009 | 2026-08-02 01:27:28 |
| Cancellation Date | 2002-05-19 | ULS 1873009 | 2026-08-02 01:27:28 |