Universal Licensing System
KNBZ637
ALPENA, CITY OF
License details
| ULS identifier | 1920178 |
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| Call sign | KNBZ637 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2022-03-21 |
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| Expiration | 2032-01-09 |
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| Frequency range | 452.625 - 457.625 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | ALPENA, ALPENA, MI |
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| Coordinates | 45.1048611, -83.4537500 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:24:22 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB2 | 452.62500000 | | | 75.000000 | 75.000000 | |
| 1 | 1 | MO | 457.62500000 | | | 45.000000 | 45.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 452.62500000 | | 11K2F3E |
| 1 | 1 | 457.62500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | N |
| 2 | T | 3860 US 23 South, ALPENA, ALPENA, MI | 45.10486111, -83.45375000 | 198.000 m | TANK | 28.300 m structure / 30.500 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 30.000 m | | | | 31.000 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2584 US 23 S, ALPENA, MI | | 5173544158 |
| 2 | 3859 US 23 N, Alpena, MI | ALPENA | 9893542487 |
License history
| Date | File or call sign | Action |
|---|
| 2023-05-04 | KNBZ637 | LIAUA |
| 2023-04-28 | KNBZ637 | LIMOD |
| 2022-03-21 | KNBZ637 | LIREN |
| 2021-12-30 | KNBZ637 | ESURNW |
| 2021-12-10 | KNBZ637 | ESURNW |
| 2021-11-10 | KNBZ637 | ESURNW |
| 2021-10-18 | KNBZ637 | LETRES |
| 2021-10-11 | KNBZ637 | ESURNW |
| 2012-03-16 | KNBZ637 | LIREN |
| 2011-10-17 | KNBZ637 | LETRES |
| 2002-02-21 | KNBZ637 | AUDOPR |
| 2002-01-09 | KNBZ637 | LIREN |
| 2001-10-15 | KNBZ637 | LETRES |
| 2000-11-24 | KNBZ637 | LICCNV |
| 1996-10-24 | KNBZ637 | AUTHPR |
| 1996-10-24 | KNBZ637 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1920178 | 2026-08-02 01:24:22 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNBZ637 | ULS 1920178 | 2026-08-02 01:24:22 |
| Status | A | ULS 1920178 | 2026-08-02 01:24:22 |
| Service | IG | ULS 1920178 | 2026-08-02 01:24:22 |
| Grant Date | 2022-03-21 | ULS 1920178 | 2026-08-02 01:24:22 |
| Expiration Date | 2032-01-09 | ULS 1920178 | 2026-08-02 01:24:22 |