Universal Licensing System
KNNN228
ILLINOIS STATE POLICE
License details
| ULS identifier | 1255548 |
|---|
| Call sign | KNNN228 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2021-04-28 |
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| Expiration | 2031-07-15 |
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| Frequency range | 154.905 - 155.475 MHz (3 frequencies) |
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| Locations | 1 |
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| Representative location | MONMOUTH, WARREN, IL |
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| Coordinates | 40.8936389, -90.6501389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-16 06:47:43 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 154.69500000 | | | 100.000000 | 280.000000 | |
| 1 | 1 | FB | 154.90500000 | | | 100.000000 | 280.000000 | |
| 1 | 1 | FB | 155.46000000 | | | 100.000000 | 280.000000 | |
| 1 | 1 | FB | 155.47500000 | | | 100.000000 | 280.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 154.69500000 | | 11K2F3E |
| 1 | 1 | 154.90500000 | | 11K2F3E |
| 1 | 1 | 155.46000000 | | 11K2F3E |
| 1 | 1 | 155.47500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | JCT OF US 67 & US 34 2 KM N, MONMOUTH, WARREN, IL | 40.89363889, -90.65013889 | 238.000 m | TOWER | 91.000 m structure / 97.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 91.000 m | | | | 109.000 | |
License history
| Date | File or call sign | Action |
|---|
| 2026-06-02 | KNNN228 | LIAUA |
| 2021-07-24 | KNNN228 | LIAUA |
| 2021-06-23 | KNNN228 | LIAUA |
| 2021-04-28 | KNNN228 | LIREN |
| 2021-04-19 | KNNN228 | LETRES |
| 2014-08-28 | KNNN228 | LIAUA |
| 2014-08-27 | KNNN228 | ESUAPR |
| 2014-01-16 | KNNN228 | LIMOD |
| 2014-01-15 | KNNN228 | ESUAPR |
| 2013-02-25 | KNNN228 | LIMOD |
| 2013-02-21 | KNNN228 | ESUAPR |
| 2012-04-17 | KNNN228 | LIAUA |
| 2012-04-16 | KNNN228 | ESUAPR |
| 2011-05-04 | KNNN228 | LIREN |
| 2011-04-18 | KNNN228 | LETRES |
| 2011-04-16 | KNNN228 | ESURNW |
| 2010-07-26 | KNNN228 | LIMOD |
| 2010-05-28 | KNNN228 | ESUAPR |
| 2009-02-25 | KNNN228 | LIAUA |
| 2009-02-24 | KNNN228 | ESCAPR |
| 2002-04-30 | KNNN228 | AUDOPR |
| 2001-06-07 | KNNN228 | LIREN |
| 2001-04-23 | KNNN228 | LETRES |
| 2000-10-20 | KNNN228 | LICCNV |
| 1996-07-15 | KNNN228 | AUTHPR |
| 1996-07-15 | KNNN228 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1255548 | 2026-08-16 06:47:43 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNN228 | ULS 1255548 | 2026-08-16 06:47:43 |
| Status | A | ULS 1255548 | 2026-08-16 06:47:43 |
| Service | PW | ULS 1255548 | 2026-08-16 06:47:43 |
| Grant Date | 2021-04-28 | ULS 1255548 | 2026-08-16 06:47:43 |
| Expiration Date | 2031-07-15 | ULS 1255548 | 2026-08-16 06:47:43 |