Universal Licensing System
WNXF553
SHAMROCK MATERIALS INC
License details
| ULS identifier | 1867600 |
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| Call sign | WNXF553 |
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| Radio service | IG |
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| Status | T |
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| Grant date | 2001-09-07 |
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| Expiration | 2011-09-04 |
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| Cancellation | 2004-06-10 |
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| Frequency range | 451.85 - 456.85 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | GEYSERVILLE, SONOMA, CA |
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| Coordinates | 38.7646389, -122.8450000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:28 |
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Licensee
| Name | SHAMROCK MATERIALS INC |
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| Applicant type | C |
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| FRN | 0005753207 |
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| Location | SAN RAFAEL, CA |
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| Address | 665 IRWIN STREET, SAN RAFAEL, CA, 94901 |
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| Phone | 4154549055 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB4 | 451.85000000 | | | 75.000000 | 240.000000 | |
| 3 | 1 | MO | 451.85000000 | | | 100.000000 | | |
| 1 | 1 | FX1 | 456.85000000 | | | 100.000000 | | |
| 3 | 1 | MO | 456.85000000 | | | 100.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.85000000 | | 20K0F3E |
| 2 | 1 | 451.85000000 | | 15K0F1D |
| 3 | 1 | 451.85000000 | | 15K0F1D |
| 3 | 1 | 451.85000000 | | 20K0F3E |
| 1 | 1 | 456.85000000 | | 15K0F1D |
| 1 | 1 | 456.85000000 | | 20K0F3E |
| 3 | 1 | 456.85000000 | | 15K0F1D |
| 3 | 1 | 456.85000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CA | | | | | |
| 2 | T | GEYSER PEAK, GEYSERVILLE, SONOMA, CA | 38.76463889, -122.84500000 | 1054.000 m | | 30.000 m structure / 30.000 m overall | N |
| 3 | T | | | | | | |
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 | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 665 IRWIN ST, SAN RAFAEL, CA | | 4154549055 |
| 2 | EVILLE RD, UKIAH, CA | | 4154549055 |
License history
| Date | File or call sign | Action |
|---|
| 2004-06-23 | WNXF553 | PNACT |
| 2004-06-10 | WNXF553 | LETACS |
| 2004-06-10 | WNXF553 | LITERM |
| 2001-09-07 | WNXF553 | LIREN |
| 2001-06-11 | WNXF553 | LETRES |
| 2000-11-24 | WNXF553 | LICCNV |
| 1996-07-30 | WNXF553 | LIREN |
| 1996-07-30 | WNXF553 | AUTHPR |
| WNXF553 | AUDCAN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1867600 | 2026-08-02 01:14:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNXF553 | ULS 1867600 | 2026-08-02 01:14:28 |
| Status | T | ULS 1867600 | 2026-08-02 01:14:28 |
| Service | IG | ULS 1867600 | 2026-08-02 01:14:28 |
| Grant Date | 2001-09-07 | ULS 1867600 | 2026-08-02 01:14:28 |
| Expiration Date | 2011-09-04 | ULS 1867600 | 2026-08-02 01:14:28 |
| Cancellation Date | 2004-06-10 | ULS 1867600 | 2026-08-02 01:14:28 |