Universal Licensing System
KNNU911
TWIN STATES ENGINEERING & CHEMICAL CO
License details
| ULS identifier | 1855548 |
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| Call sign | KNNU911 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-04-12 |
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| Expiration | 2011-05-08 |
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| Cancellation | 2011-07-09 |
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| Frequency range | 451.925 MHz |
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| Locations | 2 |
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| Representative location | JANESVILLE, ROCK, WI |
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| Coordinates | 42.7347222, -89.1451111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:31 |
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Licensee
| Name | TWIN STATES ENGINEERING & CHEMICAL CO |
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| Applicant type | C |
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| FRN | 0004775292 |
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| Location | JANESVILLE, WI |
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| Address | 3631 POLZIN RD, JANESVILLE, WI, 53546 |
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| Phone | 6087551003 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB | 451.92500000 | | | 25.000000 | 120.000000 | |
| 2 | 1 | MO | 451.92500000 | | | 25.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.92500000 | | 20K0F3E |
| 2 | 1 | 451.92500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3631 POLZIN RD, JANESVILLE, ROCK, WI | 42.73472222, -89.14511111 | 270.000 m | B | 10.000 m structure / 16.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 16.000 m | | | | 8.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3631 POLZIN RD, JANESVILLE, WI | | 6087551003 |
License history
| Date | File or call sign | Action |
|---|
| 2011-07-09 | KNNU911 | LIEXP |
| 2011-02-14 | KNNU911 | LETRES |
| 2001-12-03 | KNNU911 | AUDOPR |
| 2001-04-12 | KNNU911 | LIREN |
| 2001-02-13 | KNNU911 | LETRES |
| 2000-11-24 | KNNU911 | LICCNV |
| 1996-05-08 | KNNU911 | LIISS |
| 1996-05-08 | KNNU911 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1855548 | 2026-08-02 01:14:31 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KNNU911 | ULS 1855548 | 2026-08-02 01:14:31 |
| Status | E | ULS 1855548 | 2026-08-02 01:14:31 |
| Service | IG | ULS 1855548 | 2026-08-02 01:14:31 |
| Grant Date | 2001-04-12 | ULS 1855548 | 2026-08-02 01:14:31 |
| Expiration Date | 2011-05-08 | ULS 1855548 | 2026-08-02 01:14:31 |
| Cancellation Date | 2011-07-09 | ULS 1855548 | 2026-08-02 01:14:31 |