Universal Licensing System
WPKZ318
TWIN MOUNTAIN ROCK COMPANY
License details
| ULS identifier | 1872926 |
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| Call sign | WPKZ318 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-10-15 |
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| Expiration | 2002-10-15 |
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| Cancellation | 2003-01-19 |
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| Frequency range | 451.975 - 457.175 MHz (4 frequencies) |
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| Locations | 3 |
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| Representative location | MILFORD, BEAVER, UT |
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| Coordinates | 38.3996944, -113.0124444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:13:18 |
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Licensee
| Name | TWIN MOUNTAIN ROCK COMPANY |
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| Applicant type | C |
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| FRN | 0002389591 |
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| Location | MILFORD, UT |
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| Address | P O BOX 880, MILFORD, UT, 84751 |
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| Phone | 8013872997 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 451.97500000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | MO | 451.97500000 | | | 100.000000 | | |
| 1 | 1 | FB2 | 452.17500000 | | | 100.000000 | 100.000000 | |
| 3 | 1 | MO | 452.17500000 | | | 100.000000 | | |
| 2 | 1 | FX1 | 456.97500000 | | | 30.000000 | | |
| 3 | 1 | MO | 456.97500000 | | | 100.000000 | | |
| 2 | 1 | FX1 | 457.17500000 | | | 30.000000 | | |
| 3 | 1 | MO | 457.17500000 | | | 100.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.97500000 | | 20K0F3E |
| 3 | 1 | 451.97500000 | | 20K0F3E |
| 1 | 1 | 452.17500000 | | 20K0F3E |
| 3 | 1 | 452.17500000 | | 20K0F3E |
| 2 | 1 | 456.97500000 | | 20K0F3E |
| 3 | 1 | 456.97500000 | | 20K0F3E |
| 2 | 1 | 457.17500000 | | 20K0F3E |
| 3 | 1 | 457.17500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | 178 WEST 600 NORTH, MILFORD, BEAVER, UT | 38.39969444, -113.01244444 | 1520.000 m | B | 5.000 m structure / 7.000 m overall | N |
| 2 | T | UT | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 7.000 m | | | | -126.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 178 WEST 600 NORTH,, MILFORD, UT | | 8013872997 |
License history
| Date | File or call sign | Action |
|---|
| 2003-01-19 | WPKZ318 | LIEXP |
| 2002-07-22 | WPKZ318 | LETRES |
| 2002-04-29 | WPKZ318 | AUDOPR |
| 2000-11-24 | WPKZ318 | LICCNV |
| 1997-10-15 | WPKZ318 | LIISS |
| 1997-10-15 | WPKZ318 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1872926 | 2026-08-02 01:13:18 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKZ318 | ULS 1872926 | 2026-08-02 01:13:18 |
| Status | E | ULS 1872926 | 2026-08-02 01:13:18 |
| Service | IG | ULS 1872926 | 2026-08-02 01:13:18 |
| Grant Date | 1997-10-15 | ULS 1872926 | 2026-08-02 01:13:18 |
| Expiration Date | 2002-10-15 | ULS 1872926 | 2026-08-02 01:13:18 |
| Cancellation Date | 2003-01-19 | ULS 1872926 | 2026-08-02 01:13:18 |