Universal Licensing System
KNNF418
PETERSEN ENGINEERING INC
License details
| ULS identifier | 1902276 |
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| Call sign | KNNF418 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2015-10-14 |
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| Expiration | 2026-01-10 |
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| Cancellation | 2026-03-14 |
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| Frequency range | 451.175 - 451.525 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | OGDEN, WEBER, UT |
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| Coordinates | 41.2505000, -112.0860556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:13 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 451.17500000 | | | 25.000000 | 35.000000 | |
| 2 | 1 | MO | 451.17500000 | | | 20.000000 | 20.000000 | |
| 1 | 1 | FB | 451.52500000 | | | 25.000000 | 35.000000 | |
| 2 | 1 | MO | 451.52500000 | | | 20.000000 | 20.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.17500000 | | 11K2F3E |
| 2 | 1 | 451.17500000 | | 11K2F3E |
| 1 | 1 | 451.52500000 | | 11K2F3E |
| 2 | 1 | 451.52500000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1527 N 2000 W, OGDEN, WEBER, UT | 41.25050000, -112.08605556 | 1310.000 m | B | 6.000 m structure / 7.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 7.000 m | | | | -25.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1527 N 2000 W, OGDEN, UT | WEBER | 8017311366 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-14 | KNNF418 | LIEXP |
| 2025-11-24 | KNNF418 | LETRES |
| 2015-10-14 | KNNF418 | LIREN |
| 2015-10-12 | KNNF418 | ESCAPR |
| 2013-06-03 | KNNF418 | LIMOD |
| 2006-02-07 | KNNF418 | LIREN |
| 2006-01-31 | KNNF418 | ESCFRN |
| 2006-01-31 | KNNF418 | ESCAPR |
| 2005-10-17 | KNNF418 | LETRES |
| 2001-12-03 | KNNF418 | AUDOPR |
| 2000-11-24 | KNNF418 | LICCNV |
| 2000-10-30 | KNNF418 | AUTHPR |
| 2000-10-30 | KNNF418 | LIREN |
| 2000-10-11 | KNNF418 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1902276 | 2026-08-02 01:26:13 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNF418 | ULS 1902276 | 2026-08-02 01:26:13 |
| Status | E | ULS 1902276 | 2026-08-02 01:26:13 |
| Service | IG | ULS 1902276 | 2026-08-02 01:26:13 |
| Grant Date | 2015-10-14 | ULS 1902276 | 2026-08-02 01:26:13 |
| Expiration Date | 2026-01-10 | ULS 1902276 | 2026-08-02 01:26:13 |
| Cancellation Date | 2026-03-14 | ULS 1902276 | 2026-08-02 01:26:13 |