Universal Licensing System
WNPI541
SAN MATEO, COUNTY OF
License details
| ULS identifier | 1226631 |
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| Call sign | WNPI541 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2024-04-29 |
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| Expiration | 2034-05-18 |
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| Frequency range | 453.55 MHz |
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| Locations | 2 |
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| Representative location | REDWOOD CITY, SAN MATEO, CA |
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| Coordinates | 37.4882778, -122.2305278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:09:32 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 453.55000000 | | | 30.000000 | 30.000000 | |
| 2 | 1 | MO | 453.55000000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.55000000 | | 11K3F3E |
| 2 | 1 | 453.55000000 | | 11K3F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 401 MARSHALL ST, REDWOOD CITY, SAN MATEO, CA | 37.48827778, -122.23052778 | 2.000 m | | | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 45.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 455 COUNTY CENTER, REDWOOD CITY, CA | SAN MATEO | 6503634442 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-29 | WNPI541 | LIAUA |
| 2024-04-29 | WNPI541 | LIREN |
| 2024-04-29 | WNPI541 | LIMOD |
| 2014-03-04 | WNPI541 | LIREN |
| 2014-03-03 | WNPI541 | ESCAPR |
| 2014-02-24 | WNPI541 | LETRES |
| 2012-02-15 | WNPI541 | LIMOD |
| 2012-01-11 | WNPI541 | ESCAPR |
| 2004-02-23 | WNPI541 | LETRES |
| 2002-01-16 | WNPI541 | AUDOPR |
| 2000-10-20 | WNPI541 | LICCNV |
| 1999-01-25 | WNPI541 | AUTHPR |
| 1999-01-25 | WNPI541 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1226631 | 2026-08-02 01:09:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNPI541 | ULS 1226631 | 2026-08-02 01:09:32 |
| Status | A | ULS 1226631 | 2026-08-02 01:09:32 |
| Service | PW | ULS 1226631 | 2026-08-02 01:09:32 |
| Grant Date | 2024-04-29 | ULS 1226631 | 2026-08-02 01:09:32 |
| Expiration Date | 2034-05-18 | ULS 1226631 | 2026-08-02 01:09:32 |