Universal Licensing System
WPJK940
MPS Services, Inc
License details
| ULS identifier | 1784731 |
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| Call sign | WPJK940 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-07-07 |
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| Expiration | 2011-07-11 |
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| Cancellation | 2011-09-10 |
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| Frequency range | 461.35 - 468.95 MHz (6 frequencies) |
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| Locations | 5 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8789167, -87.6361667 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:59 |
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Licensee
| Name | MPS Services, Inc |
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| Applicant type | C |
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| FRN | 0014532535 |
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| Location | Chicago, IL |
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| Address | 449 N Union, Chicago, IL, 60610 |
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| Phone | 3128501200 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 461.35000000 | | | 100.000000 | 44.000000 | |
| 4 | 1 | MO | 461.35000000 | | | 100.000000 | | |
| 2 | 1 | FB2 | 462.20000000 | | | 40.000000 | 45.000000 | |
| 5 | 1 | MO | 462.20000000 | | | 40.000000 | | |
| 1 | 1 | FB2 | 463.95000000 | | | 100.000000 | 44.000000 | |
| 4 | 1 | MO | 463.95000000 | | | 100.000000 | | |
| 3 | 1 | FX1 | 466.35000000 | | | 100.000000 | | |
| 4 | 1 | MO | 466.35000000 | | | 100.000000 | | |
| 3 | 1 | FX1 | 467.20000000 | | | 40.000000 | | |
| 5 | 1 | MO | 467.20000000 | | | 40.000000 | | |
| 3 | 1 | FX1 | 468.95000000 | | | 100.000000 | | |
| 4 | 1 | MO | 468.95000000 | | | 100.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.35000000 | | 20K0F3E |
| 4 | 1 | 461.35000000 | | 20K0F3E |
| 2 | 1 | 462.20000000 | | 20K0F3E |
| 5 | 1 | 462.20000000 | | 20K0F3E |
| 1 | 1 | 463.95000000 | | 20K0F3E |
| 4 | 1 | 463.95000000 | | 20K0F3E |
| 3 | 1 | 466.35000000 | | 20K0F3E |
| 4 | 1 | 466.35000000 | | 20K0F3E |
| 3 | 1 | 467.20000000 | | 20K0F3E |
| 5 | 1 | 467.20000000 | | 20K0F3E |
| 3 | 1 | 468.95000000 | | 20K0F3E |
| 4 | 1 | 468.95000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 233 S WACKER DR, CHICAGO, COOK, IL | 41.87891667, -87.63616667 | 181.000 m | B | 432.000 m structure / 522.000 m overall | N |
| 2 | T | 449 N UNION, CHICAGO, COOK, IL | 41.89030556, -87.64561111 | 181.000 m | B | 9.000 m structure / 12.000 m overall | N |
| 3 | T | IL | | | | | |
| 4 | T | | | | | | |
| 5 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 369.000 m | | | | 370.000 | |
| 1 | 2 | T | | 12.000 m | | | | 13.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 449 N UNION, CHICAGO, IL | | 3128501200 |
License history
| Date | File or call sign | Action |
|---|
| 2011-09-10 | WPJK940 | LIEXP |
| 2011-04-18 | WPJK940 | LETRES |
| 2006-02-09 | WPJK940 | LIASS |
| 2005-08-17 | WPJK940 | LIASS |
| 2005-08-04 | WPJK940 | LTSAPR |
| 2001-10-26 | WPJK940 | AUDOPR |
| 2001-07-07 | WPJK940 | LIREN |
| 2001-04-16 | WPJK940 | LETRES |
| 2000-11-23 | WPJK940 | LICCNV |
| 1999-09-24 | WPJK940 | AUTHPR |
| 1999-09-24 | WPJK940 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1784731 | 2026-08-02 01:17:59 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPJK940 | ULS 1784731 | 2026-08-02 01:17:59 |
| Status | E | ULS 1784731 | 2026-08-02 01:17:59 |
| Service | IG | ULS 1784731 | 2026-08-02 01:17:59 |
| Grant Date | 2001-07-07 | ULS 1784731 | 2026-08-02 01:17:59 |
| Expiration Date | 2011-07-11 | ULS 1784731 | 2026-08-02 01:17:59 |
| Cancellation Date | 2011-09-10 | ULS 1784731 | 2026-08-02 01:17:59 |