Universal Licensing System
KNNU581
VASSAR PUBLIC SCHOOLS
License details
| ULS identifier | 1635527 |
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| Call sign | KNNU581 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-06-09 |
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| Expiration | 2031-05-07 |
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| Frequency range | 464.475 - 469.475 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | VASSAR, TUSCOLA, MI |
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| Coordinates | 43.3683611, -83.5838611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:47 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 464.47500000 | | | 40.000000 | 25.000000 | |
| 2 | 1 | FX1 | 469.47500000 | | | 4.000000 | 4.000000 | |
| 3 | 1 | MO | 469.47500000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.47500000 | | 11K2F3E |
| 2 | 1 | 469.47500000 | | 11K2F3E |
| 3 | 1 | 469.47500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | AT THE FOOT OF WEST ST, VASSAR, TUSCOLA, MI | 43.36836111, -83.58386111 | 322.000 m | TANK | 36.000 m structure / 38.000 m overall | N |
| 2 | T | MI | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 3.000 m | | | | 30.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 220 ATHLETIC ST, VASSAR, MI | | 5178232551 |
License history
| Date | File or call sign | Action |
|---|
| 2021-06-09 | KNNU581 | LIREN |
| 2021-02-08 | KNNU581 | LETRES |
| 2011-06-13 | KNNU581 | LIREN |
| 2011-05-09 | KNNU581 | LTSAPR |
| 2011-02-14 | KNNU581 | LETRES |
| 2001-12-03 | KNNU581 | AUDOPR |
| 2001-04-12 | KNNU581 | LIREN |
| 2001-02-13 | KNNU581 | LETRES |
| 2000-11-23 | KNNU581 | LICCNV |
| 1996-05-07 | KNNU581 | AUTHPR |
| 1996-05-07 | KNNU581 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1635527 | 2026-08-02 01:14:47 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNU581 | ULS 1635527 | 2026-08-02 01:14:47 |
| Status | A | ULS 1635527 | 2026-08-02 01:14:47 |
| Service | IG | ULS 1635527 | 2026-08-02 01:14:47 |
| Grant Date | 2021-06-09 | ULS 1635527 | 2026-08-02 01:14:47 |
| Expiration Date | 2031-05-07 | ULS 1635527 | 2026-08-02 01:14:47 |