Universal Licensing System
KNFB431
ILLINOIS STATE POLICE
License details
| ULS identifier | 1212805 |
|---|
| Call sign | KNFB431 |
|---|
| Radio service | PW |
|---|
| Status | A |
|---|
| Grant date | 2024-07-02 |
|---|
| Expiration | 2034-09-14 |
|---|
| Frequency range | 453.15 - 458.15 MHz (6 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | HILLSIDE, COOK, IL |
|---|
| Coordinates | 41.8647500, -87.8870000 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-16 06:47:42 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB2 | 453.15000000 | | | 100.000000 | 250.000000 | |
| 2 | 1 | FB2 | 453.20000000 | | | 100.000000 | 400.000000 | |
| 2 | 1 | FB2 | 453.25000000 | | | 100.000000 | 400.000000 | |
| 2 | 1 | FB2 | 453.30000000 | | | 100.000000 | 400.000000 | |
| 2 | 1 | FB2 | 453.40000000 | | | 100.000000 | 400.000000 | |
| 1 | 1 | MO | 458.15000000 | | | 45.000000 | 45.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 453.15000000 | | |
| 2 | 1 | 453.15000000 | | 11K2F3E |
| 2 | 1 | 453.15000000 | | 8K10F1E |
| 2 | 1 | 453.15000000 | | 11K0F2D |
| 2 | 1 | 453.15000000 | | 8K10F1D |
| 2 | 1 | 453.20000000 | | 11K2F3E |
| 2 | 1 | 453.20000000 | | |
| 2 | 1 | 453.20000000 | | 8K10F1D |
| 2 | 1 | 453.20000000 | | 8K10F1E |
| 2 | 1 | 453.20000000 | | 11K0F2D |
| 2 | 1 | 453.25000000 | | 11K0F2D |
| 2 | 1 | 453.25000000 | | |
| 2 | 1 | 453.25000000 | | 11K2F3E |
| 2 | 1 | 453.25000000 | | 8K10F1E |
| 2 | 1 | 453.25000000 | | 8K10F1D |
| 2 | 1 | 453.30000000 | | 8K10F1D |
| 2 | 1 | 453.30000000 | | |
| 2 | 1 | 453.30000000 | | 11K2F3E |
| 2 | 1 | 453.30000000 | | 11K0F2D |
| 2 | 1 | 453.30000000 | | 8K10F1E |
| 2 | 1 | 453.40000000 | | 11K0F2D |
| 2 | 1 | 453.40000000 | | 8K10F1D |
| 2 | 1 | 453.40000000 | | 11K2F3E |
| 2 | 1 | 453.40000000 | | 8K10F1E |
| 2 | 1 | 453.40000000 | | |
| 1 | 1 | 458.15000000 | | 8K10F1E |
| 1 | 1 | 458.15000000 | | 11K2F3E |
| 1 | 1 | 458.15000000 | | 11K0F2D |
| 1 | 1 | 458.15000000 | | 8K10F1D |
| 1 | 1 | 458.15000000 | | |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | |
| 2 | T | EAST AVE & MAY ST, HILLSIDE, COOK, IL | 41.86475000, -87.88700000 | 187.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 91.000 m | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2300 S Dirksen Parkway, Springfield, IL | SANGAMON | 2177827234 |
License history
| Date | File or call sign | Action |
|---|
| 2026-06-02 | KNFB431 | LIAUA |
| 2024-07-02 | KNFB431 | LIREN |
| 2024-06-24 | KNFB431 | LETRES |
| 2024-06-16 | KNFB431 | ESURNW |
| 2021-07-24 | KNFB431 | LIAUA |
| 2021-06-23 | KNFB431 | LIAUA |
| 2014-08-23 | KNFB431 | LIAUA |
| 2014-08-22 | KNFB431 | ESUAPR |
| 2014-07-17 | KNFB431 | COR |
| 2014-07-17 | KNFB431 | LIREN |
| 2013-05-08 | KNFB431 | COR |
| 2013-02-09 | KNFB431 | LIMOD |
| 2013-02-08 | KNFB431 | ESUAPR |
| 2013-01-02 | KNFB431 | LIMOD |
| 2012-04-10 | KNFB431 | LIAUA |
| 2012-04-09 | KNFB431 | ESUAPR |
| 2010-09-21 | KNFB431 | LIMOD |
| 2010-07-08 | KNFB431 | ESUAPR |
| 2010-02-27 | KNFB431 | LIAUA |
| 2010-02-26 | KNFB431 | ESUAPR |
| 2009-02-25 | KNFB431 | LIAUA |
| 2009-02-24 | KNFB431 | ESCAPR |
| 2004-06-29 | KNFB431 | LIREN |
| 2004-06-21 | KNFB431 | LETRES |
| 2002-04-30 | KNFB431 | AUDOPR |
| 2000-10-20 | KNFB431 | LICCNV |
| 1999-07-12 | KNFB431 | AUTHPR |
| 1999-07-12 | KNFB431 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1212805 | 2026-08-16 06:47:42 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNFB431 | ULS 1212805 | 2026-08-16 06:47:42 |
| Status | A | ULS 1212805 | 2026-08-16 06:47:42 |
| Service | PW | ULS 1212805 | 2026-08-16 06:47:42 |
| Grant Date | 2024-07-02 | ULS 1212805 | 2026-08-16 06:47:42 |
| Expiration Date | 2034-09-14 | ULS 1212805 | 2026-08-16 06:47:42 |