Universal Licensing System
KNIF491
ILLINOIS STATE POLICE
License details
| ULS identifier | 1243227 |
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| Call sign | KNIF491 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2023-12-28 |
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| Expiration | 2034-01-17 |
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| Frequency range | 151.28 - 159.375 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | ZION, LAKE, IL |
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| Coordinates | 42.4200278, -87.8070278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 151.28000000 | | | 45.000000 | 42.000000 | |
| 1 | 1 | FB | 151.44500000 | | | 45.000000 | 42.000000 | |
| 1 | 1 | FX1 | 159.30000000 | | | 45.000000 | 42.000000 | |
| 1 | 1 | FX1 | 159.37500000 | | | 45.000000 | 42.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 151.28000000 | | 11K2F3E |
| 1 | 1 | 151.44500000 | | 11K2F3E |
| 1 | 1 | 159.30000000 | | 11K2F3E |
| 1 | 1 | 159.37500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | GATE HOUSE IL BEACH STATE PARK 3.5 MI SSE, ZION, LAKE, IL | 42.42002778, -87.80702778 | 168.000 m | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 12.000 m | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 801 S 7th St, Springfield, IL | SANGAMON | 2177827347 |
License history
| Date | File or call sign | Action |
|---|
| 2026-06-02 | KNIF491 | LIAUA |
| 2023-12-28 | KNIF491 | LIREN |
| 2023-12-18 | KNIF491 | ESURNW |
| 2023-11-18 | KNIF491 | ESURNW |
| 2023-10-23 | KNIF491 | LETRES |
| 2023-10-19 | KNIF491 | ESURNW |
| 2021-07-24 | KNIF491 | LIAUA |
| 2021-06-23 | KNIF491 | LIAUA |
| 2014-08-27 | KNIF491 | LIAUA |
| 2014-08-26 | KNIF491 | ESUAPR |
| 2013-10-31 | KNIF491 | LIREN |
| 2013-10-21 | KNIF491 | LETRES |
| 2013-02-20 | KNIF491 | LIMOD |
| 2013-02-19 | KNIF491 | ESUAPR |
| 2012-04-12 | KNIF491 | LIAUA |
| 2012-04-11 | KNIF491 | ESUAPR |
| 2010-09-21 | KNIF491 | LIMOD |
| 2010-07-08 | KNIF491 | ESUAPR |
| 2010-02-17 | KNIF491 | LIAUA |
| 2010-02-16 | KNIF491 | ESUAPR |
| 2009-02-25 | KNIF491 | LIAUA |
| 2009-02-24 | KNIF491 | ESCAPR |
| 2003-10-22 | KNIF491 | LIREN |
| 2003-10-20 | KNIF491 | LETRES |
| 2002-04-30 | KNIF491 | AUDOPR |
| 2000-10-20 | KNIF491 | LICCNV |
| 1998-11-04 | KNIF491 | LIREN |
| 1998-11-04 | KNIF491 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1243227 | 2026-08-02 01:13:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNIF491 | ULS 1243227 | 2026-08-02 01:13:20 |
| Status | A | ULS 1243227 | 2026-08-02 01:13:20 |
| Service | PW | ULS 1243227 | 2026-08-02 01:13:20 |
| Grant Date | 2023-12-28 | ULS 1243227 | 2026-08-02 01:13:20 |
| Expiration Date | 2034-01-17 | ULS 1243227 | 2026-08-02 01:13:20 |