Universal Licensing System
WBB423
UNIVERSITY OF NORTHWESTERN - ST. PAUL
License details
| ULS identifier | 970310 |
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| Call sign | WBB423 |
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| Radio service | AS |
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| Status | C |
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| Grant date | 1991-05-31 |
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| Expiration | 2028-12-01 |
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| Cancellation | 2025-12-01 |
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| Frequency range | 949.5 MHz |
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| Locations | 1 |
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| Representative location | CARLINVILLE, MACOUPIN, IL |
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| Coordinates | 39.2522222, -89.8344444 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:45:32 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 949.50000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 949.50000000 | | 300KD7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2.5 MILES SE OF Carlinville S of St Hwy 4, CARLINVILLE, MACOUPIN, IL | 39.25222222, -89.83444444 | 192.000 m | TOWER | 12.200 m structure / 13.700 m overall | N |
| 2 | R | | 39.34944444, -89.80444444 | 192.000 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Scala PR-950 | | V | 10.1000 | 13.4000 | | |
| 1 | 2 | R | Scala PR-950 | | | 20.1000 | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 17387 Cottonwood Lane, Carlinville, IL | MACOUPIN | 2178544800 |
License history
| Date | File or call sign | Action |
|---|
| 2025-12-02 | WBB423 | LICAN |
| 2021-01-27 | WBB423 | PNACT |
| 2021-01-22 | WBB423 | PLAUPR |
| 2021-01-22 | WBB423 | LIREN |
| 2019-11-13 | WBB423 | PNACT |
| 2019-11-06 | WBB423 | AUTHPR |
| 2019-11-05 | WBB423 | LIMOD |
| 2012-11-28 | WBB423 | PNACT |
| 2012-11-27 | WBB423 | AUTHPR |
| 2012-11-24 | WBB423 | LIREN |
| 2005-05-16 | WBB423 | LETCNS |
| 2004-12-08 | WBB423 | PNACT |
| 2004-11-30 | WBB423 | AUTHPR |
| 2004-11-29 | WBB423 | LIREN |
| 2004-02-18 | WBB423 | LIMOD |
| 2003-04-02 | WBB423 | PNACT |
| 2003-03-28 | WBB423 | AUTHPR |
| 2003-03-27 | WBB423 | LIMOD |
| 2003-01-29 | WBB423 | PNACT |
| 2003-01-22 | WBB423 | AUTHPR |
| 2003-01-21 | WBB423 | LIMOD |
| 1999-08-13 | WBB423 | LICCNV |
| 1998-09-01 | WBB423 | COR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 970310 | 2026-08-02 02:45:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WBB423 | ULS 970310 | 2026-08-02 02:45:32 |
| Status | C | ULS 970310 | 2026-08-02 02:45:32 |
| Service | AS | ULS 970310 | 2026-08-02 02:45:32 |
| Grant Date | 1991-05-31 | ULS 970310 | 2026-08-02 02:45:32 |
| Expiration Date | 2028-12-01 | ULS 970310 | 2026-08-02 02:45:32 |
| Cancellation Date | 2025-12-01 | ULS 970310 | 2026-08-02 02:45:32 |