Universal Licensing System
WPIU475
NATIONAL TUBE SUPPLY COMPANY
License details
| ULS identifier | 1734551 |
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| Call sign | WPIU475 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2025-08-07 |
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| Expiration | 2035-10-31 |
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| Frequency range | 464.825 - 469.825 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | UNIVERSITY PARK, COOK, IL |
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| Coordinates | 41.5086389, -87.7511667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:15 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 464.82500000 | | | 25.000000 | 90.000000 | |
| 2 | 1 | MO | 464.82500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 469.82500000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.82500000 | | 11K2F3E |
| 2 | 1 | 464.82500000 | | 11K2F3E |
| 2 | 1 | 469.82500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 925 CENTRAL AVE, UNIVERSITY PARK, COOK, IL | 41.50863889, -87.75116667 | 237.000 m | B | 6.000 m structure / 12.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 12.000 m | | | | 34.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 925 CENTRAL AVE, UNIVERSITY PARK, IL | COOK | 7085342700 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-07 | WPIU475 | LIREN |
| 2025-08-04 | WPIU475 | LETRES |
| 2015-09-11 | WPIU475 | LIREN |
| 2015-08-10 | WPIU475 | LETRES |
| 2015-06-19 | WPIU475 | LIMOD |
| 2009-03-24 | WPIU475 | LIMOD |
| 2005-08-04 | WPIU475 | LIREN |
| 2005-08-04 | WPIU475 | LTSAPR |
| 2005-06-17 | WPIU475 | LTSFRN |
| 2001-10-19 | WPIU475 | AUDOPR |
| 2000-11-23 | WPIU475 | LICCNV |
| 2000-08-17 | WPIU475 | LIREN |
| 2000-08-17 | WPIU475 | AUTHPR |
| 2000-07-28 | WPIU475 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1734551 | 2026-08-02 01:17:15 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPIU475 | ULS 1734551 | 2026-08-02 01:17:15 |
| Status | A | ULS 1734551 | 2026-08-02 01:17:15 |
| Service | IG | ULS 1734551 | 2026-08-02 01:17:15 |
| Grant Date | 2025-08-07 | ULS 1734551 | 2026-08-02 01:17:15 |
| Expiration Date | 2035-10-31 | ULS 1734551 | 2026-08-02 01:17:15 |