Universal Licensing System
KNNU577
DUNCAN PLUMBING & HEATING INC DBA DUNCAN MECHANICAL
License details
| ULS identifier | 1635525 |
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| Call sign | KNNU577 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1996-05-06 |
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| Expiration | 2001-05-06 |
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| Cancellation | 2001-07-08 |
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| Frequency range | 464.6 - 469.6 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | SALT LAKE CITY, SALT LAKE, UT |
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| Coordinates | 40.6277222, -112.0577222 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:27:58 |
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Licensee
| Name | DUNCAN PLUMBING & HEATING INC DBA DUNCAN MECHANICAL |
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| Applicant type | C |
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| Location | SOUTH JORDAN, UT |
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| Address | 113 69 S 2480 W, SOUTH JORDAN, UT, 84095 |
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| Phone | 8012802216 |
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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 | FB4 | 464.60000000 | | | 90.000000 | 50.000000 | |
| 3 | 1 | MO | 464.60000000 | | | 90.000000 | | |
| 2 | 1 | FX1 | 469.60000000 | | | 30.000000 | | |
| 3 | 1 | MO | 469.60000000 | | | 90.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.60000000 | | 20K0F3E |
| 3 | 1 | 464.60000000 | | 20K0F3E |
| 2 | 1 | 469.60000000 | | 20K0F3E |
| 3 | 1 | 469.60000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ST HWY 111 & 6100 S, SALT LAKE CITY, SALT LAKE, UT | 40.62772222, -112.05772222 | 1594.000 m | TOWER | 24.000 m structure / 24.000 m overall | N |
| 2 | T | UT | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 24.000 m | | | | 0.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 4300 W FARM RD, WEST JORDAN, UT | | 8012802216 |
License history
| Date | File or call sign | Action |
|---|
| 2001-09-04 | KNNU577 | LETAUS |
| 2001-07-08 | KNNU577 | LIEXP |
| 2001-02-13 | KNNU577 | LETRES |
| 2000-11-23 | KNNU577 | LICCNV |
| 1996-05-06 | KNNU577 | AUTHPR |
| 1996-05-06 | KNNU577 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1635525 | 2026-08-02 01:27:58 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KNNU577 | ULS 1635525 | 2026-08-02 01:27:58 |
| Status | E | ULS 1635525 | 2026-08-02 01:27:58 |
| Service | IG | ULS 1635525 | 2026-08-02 01:27:58 |
| Grant Date | 1996-05-06 | ULS 1635525 | 2026-08-02 01:27:58 |
| Expiration Date | 2001-05-06 | ULS 1635525 | 2026-08-02 01:27:58 |
| Cancellation Date | 2001-07-08 | ULS 1635525 | 2026-08-02 01:27:58 |