Universal Licensing System
WPKU677
CHICAGO MESSENGER SERVICE
License details
| ULS identifier | 1751911 |
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| Call sign | WPKU677 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-07-22 |
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| Expiration | 2002-07-22 |
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| Cancellation | 2002-11-24 |
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| Frequency range | 461.875 - 466.875 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8814167, -87.6300556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:03 |
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Licensee
| Name | CHICAGO MESSENGER SERVICE |
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| Applicant type | C |
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| Location | CHICAGO, IL |
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| Address | 1600 S ASHLAND AVE, CHICAGO, IL, 606082099 |
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| Phone | 3126666800 |
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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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| 1 | 1 | FB2 | 461.87500000 | | | 100.000000 | 98.940000 | |
| 2 | 1 | MO | 466.87500000 | | | 30.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.87500000 | | 20K0F3E |
| 2 | 1 | 466.87500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | DEARBORN AND CLARK, CHICAGO, COOK, IL | 41.88141667, -87.63005556 | 180.000 m | B | 276.000 m structure / 280.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 280.000 m | | | | 281.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1600 S ASHLAND AVE, CHICAGO, IL | | 3126666800 |
License history
| Date | File or call sign | Action |
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| 2002-11-24 | WPKU677 | LIEXP |
| 2002-04-29 | WPKU677 | LETRES |
| 2001-09-04 | WPKU677 | AUDOPR |
| 2000-11-23 | WPKU677 | LICCNV |
| 1997-07-22 | WPKU677 | AUTHPR |
| 1997-07-22 | WPKU677 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1751911 | 2026-08-02 01:29:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKU677 | ULS 1751911 | 2026-08-02 01:29:03 |
| Status | E | ULS 1751911 | 2026-08-02 01:29:03 |
| Service | IG | ULS 1751911 | 2026-08-02 01:29:03 |
| Grant Date | 1997-07-22 | ULS 1751911 | 2026-08-02 01:29:03 |
| Expiration Date | 2002-07-22 | ULS 1751911 | 2026-08-02 01:29:03 |
| Cancellation Date | 2002-11-24 | ULS 1751911 | 2026-08-02 01:29:03 |