Universal Licensing System
WNXX457
MARIN MUNICIPAL WATER DISTRICT
License details
| ULS identifier | 1894440 |
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| Call sign | WNXX457 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2021-11-06 |
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| Expiration | 2031-11-27 |
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| Frequency range | 451.1125 - 456.1125 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | MARIN, CA |
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| Coordinates | 37.9199167, -122.6144167 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:18:03 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.11250000 | | | 2.000000 | | |
| 1 | 1 | MO | 456.11250000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.11250000 | | 11K2F3E |
| 1 | 1 | 456.11250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MARIN, CA | 37.91991667, -122.61441667 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 220 NELLEN AVE, CORTE MADERA, CA | | 4159244600 |
License history
| Date | File or call sign | Action |
|---|
| 2021-11-06 | WNXX457 | LIREN |
| 2021-10-28 | WNXX457 | ESURNW |
| 2021-09-28 | WNXX457 | ESURNW |
| 2021-09-06 | WNXX457 | LETRES |
| 2021-08-29 | WNXX457 | ESURNW |
| 2013-03-19 | WNXX457 | LIMOD |
| 2013-03-18 | WNXX457 | ESUAPR |
| 2012-01-06 | WNXX457 | LIMOD |
| 2011-11-08 | WNXX457 | LIREN |
| 2011-11-08 | WNXX457 | LTSAPR |
| 2011-11-08 | WNXX457 | ESUAPR |
| 2011-11-07 | WNXX457 | EFCAPR |
| 2011-11-07 | WNXX457 | ESCAPR |
| 2011-09-05 | WNXX457 | LETRES |
| 2001-10-29 | WNXX457 | AUDOPR |
| 2001-09-13 | WNXX457 | LIREN |
| 2001-09-04 | WNXX457 | LETRES |
| 2000-11-24 | WNXX457 | LICCNV |
| 1996-09-30 | WNXX457 | AUTHPR |
| 1996-09-30 | WNXX457 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1894440 | 2026-08-02 01:18:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNXX457 | ULS 1894440 | 2026-08-02 01:18:03 |
| Status | A | ULS 1894440 | 2026-08-02 01:18:03 |
| Service | IG | ULS 1894440 | 2026-08-02 01:18:03 |
| Grant Date | 2021-11-06 | ULS 1894440 | 2026-08-02 01:18:03 |
| Expiration Date | 2031-11-27 | ULS 1894440 | 2026-08-02 01:18:03 |