Universal Licensing System
WHD953
The Chicago Switch, LLC
License details
| ULS identifier | 980785 |
|---|
| Call sign | WHD953 |
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| Radio service | CF |
|---|
| Status | E |
|---|
| Grant date | 2001-03-13 |
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| Expiration | 2011-02-01 |
|---|
| Cancellation | 2011-04-09 |
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| Frequency range | 21325 - 21675 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8989167, -87.6230833 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:47:29 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 3 | FXO | 21325.00000000 | | | | | |
| 1 | 1 | FXO | 21425.00000000 | | | | | |
| 1 | 11 | FXO | 21525.00000000 | | | | | |
| 1 | 11 | FXO | 21675.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 3 | 21325.00000000 | | 25M0F9W |
| 1 | 1 | 21425.00000000 | | 25M0F9W |
| 1 | 11 | 21525.00000000 | | 25M0F9W |
| 1 | 11 | 21675.00000000 | | 25M0F9W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 875 N MICHIGAN AVE, CHICAGO, COOK, IL | 41.89891667, -87.62308333 | 180.700 m | | 442.600 m overall | |
| 6 | R | | 41.88613889, -87.62308333 | 185.900 m | | | |
| 7 | R | | 41.89363889, -87.61836111 | 179.800 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | M/A COM MVS INC K-24 | | V | 40.6000 | 146.2000 | | |
| 1 | 6 | R | M/A COM MVS INC K-24 | | | 40.6000 | | | |
| 1 | 7 | R | M/A COM MVS INC K-24 | | | 40.6000 | | | |
| 2 | 7 | R | M/A COM MVS INC K-24 | | | 40.6000 | | | |
| 3 | 1 | T | M/A COM MVS INC K-24 | | V | 40.6000 | 180.0000 | | |
| 11 | 1 | T | M/A COM MVS INC K-24 | | H | 40.6000 | 146.2000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 13935 Bishops Drive, Brookfield, WI | WAUKESHA | 8008094340 |
License history
| Date | File or call sign | Action |
|---|
| 2011-04-09 | WHD953 | LIEXP |
| 2010-11-08 | WHD953 | LETRES |
| 2005-07-11 | WHD953 | LIMOD |
| 2005-06-23 | WHD953 | LIASS |
| 2005-06-02 | WHD953 | ESUAPR |
| 2005-05-12 | WHD953 | LIAUA |
| 2005-05-11 | WHD953 | ESUAPR |
| 2005-04-29 | WHD953 | ESUAPR |
| 2003-06-17 | WHD953 | LIAUA |
| 2003-05-14 | WHD953 | LIAUA |
| 2002-02-13 | WHD953 | LIASS |
| 2001-03-13 | WHD953 | LIREN |
| 2001-01-27 | WHD953 | AUTHPR |
| 2001-01-26 | WHD953 | INTDUP |
| 2001-01-26 | WHD953 | COR |
| 2001-01-25 | WHD953 | AUTHPR |
| 2001-01-25 | WHD953 | COR |
| 2001-01-24 | WHD953 | AUTHPR |
| 2001-01-24 | WHD953 | INTDUP |
| 2001-01-24 | WHD953 | COR |
| 2001-01-23 | WHD953 | COR |
| 2001-01-23 | WHD953 | INTDUP |
| 2000-11-13 | WHD953 | LETRES |
| 1999-08-13 | WHD953 | LICCNV |
| 1996-07-30 | WHD953 | LIASS |
| 1996-04-16 | WHD953 | LITRAN |
| 1995-09-27 | WHD953 | LITRAN |
| 1994-09-19 | WHD953 | LIMOD |
| 1993-08-23 | WHD953 | LIMOD |
| 1991-04-17 | WHD953 | LIREN |
| 1990-10-15 | WHD953 | LIMOD |
| 1990-08-10 | WHD953 | LIMOD |
| 1990-05-31 | WHD953 | LIMOD |
| 1989-02-15 | WHD953 | LIMOD |
| 1988-05-03 | WHD953 | LIMOD |
| 1987-09-29 | WHD953 | LIMOD |
| 1987-03-28 | WHD953 | LIMOD |
| 1985-02-28 | WHD953 | LIMOD |
| 1984-12-19 | WHD953 | APGRT |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 980785 | 2026-08-02 02:47:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WHD953 | ULS 980785 | 2026-08-02 02:47:29 |
| Status | E | ULS 980785 | 2026-08-02 02:47:29 |
| Service | CF | ULS 980785 | 2026-08-02 02:47:29 |
| Grant Date | 2001-03-13 | ULS 980785 | 2026-08-02 02:47:29 |
| Expiration Date | 2011-02-01 | ULS 980785 | 2026-08-02 02:47:29 |
| Cancellation Date | 2011-04-09 | ULS 980785 | 2026-08-02 02:47:29 |