Universal Licensing System
WPPD638
MIDWESTERN UNIVERSITY
License details
| ULS identifier | 1816811 |
|---|
| Call sign | WPPD638 |
|---|
| Radio service | IG |
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| Status | A |
|---|
| Grant date | 2024-08-27 |
|---|
| Expiration | 2034-11-02 |
|---|
| Frequency range | 451.35 - 457.8125 MHz (6 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | DOWNERS GROVE, DUPAGE, IL |
|---|
| Coordinates | 41.8286389, -88.0008889 |
|---|
| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:25:34 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.35000000 | | | 20.000000 | 20.000000 | |
| 2 | 1 | MO | 451.35000000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 451.47500000 | | | 50.000000 | 20.000000 | |
| 2 | 1 | MO | 451.47500000 | | | 4.000000 | 4.000000 | |
| 1 | 1 | FB2 | 452.81250000 | | | 50.000000 | 20.000000 | |
| 2 | 1 | MO | 452.81250000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.35000000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 456.47500000 | | | 4.000000 | 4.000000 | |
| 2 | 1 | MO | 457.81250000 | | | 4.000000 | 4.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.35000000 | | 11K2F3E |
| 2 | 1 | 451.35000000 | | 11K2F3E |
| 1 | 1 | 451.47500000 | | 11K2F3E |
| 1 | 1 | 451.47500000 | | 7K60FXE |
| 2 | 1 | 451.47500000 | | 7K60FXE |
| 2 | 1 | 451.47500000 | | 11K2F3E |
| 1 | 1 | 452.81250000 | | 7K60FXE |
| 1 | 1 | 452.81250000 | | 11K2F3E |
| 2 | 1 | 452.81250000 | | 7K60FXE |
| 2 | 1 | 452.81250000 | | 11K2F3E |
| 2 | 1 | 456.35000000 | | 11K2F3E |
| 2 | 1 | 456.47500000 | | 7K60FXE |
| 2 | 1 | 456.47500000 | | 11K2F3E |
| 2 | 1 | 457.81250000 | | 11K2F3E |
| 2 | 1 | 457.81250000 | | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 555 WEST 31ST ST, DOWNERS GROVE, DUPAGE, IL | 41.82863889, -88.00088889 | 213.000 m | B | 18.000 m structure / 18.000 m overall | N |
| 2 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 18.000 m | | | | 16.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 555 WEST 31ST ST, DOWNERS GROVE, IL | DUPAGE | 6309694400 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-09 | WPPD638 | LETCNS |
| 2024-12-06 | WPPD638 | LIMOD |
| 2024-08-27 | WPPD638 | LIREN |
| 2014-10-28 | WPPD638 | LIREN |
| 2014-10-27 | WPPD638 | ESCAPR |
| 2014-08-11 | WPPD638 | LETRES |
| 2004-11-04 | WPPD638 | LIREN |
| 2004-11-03 | WPPD638 | LITIN |
| 2004-09-24 | WPPD638 | LTSFRN |
| 2004-08-09 | WPPD638 | LETRES |
| 2003-03-12 | WPPD638 | AUDOPR |
| 2000-11-23 | WPPD638 | LICCNV |
| 1999-11-02 | WPPD638 | AUTHPR |
| 1999-11-02 | WPPD638 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1816811 | 2026-08-02 01:25:34 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPD638 | ULS 1816811 | 2026-08-02 01:25:34 |
| Status | A | ULS 1816811 | 2026-08-02 01:25:34 |
| Service | IG | ULS 1816811 | 2026-08-02 01:25:34 |
| Grant Date | 2024-08-27 | ULS 1816811 | 2026-08-02 01:25:34 |
| Expiration Date | 2034-11-02 | ULS 1816811 | 2026-08-02 01:25:34 |