Universal Licensing System
KNNS890
SAN MATEO, COUNTY OF
License details
| ULS identifier | 1215857 |
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| Call sign | KNNS890 |
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| Radio service | PW |
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| Status | A |
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| Grant date | 2021-03-17 |
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| Expiration | 2031-04-18 |
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| Frequency range | 453.8375 - 458.8375 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | 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 | MO3 | 453.83750000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | MO | 458.83750000 | | | 2.000000 | 2.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.83750000 | | 11K3F3E |
| 1 | 1 | 458.83750000 | | 11K3F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SAN MATEO, CA | 37.48827778, -122.23052778 | | | | |
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 | 400 County Center, REDWOOD CITY, CA | SAN MATEO | 6505991030 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-22 | KNNS890 | LIAUA |
| 2021-03-17 | KNNS890 | LIREN |
| 2021-03-17 | KNNS890 | LIMOD |
| 2021-02-08 | KNNS890 | LETRES |
| 2011-12-15 | KNNS890 | LIMOD |
| 2011-12-14 | KNNS890 | ESCAPR |
| 2011-02-01 | KNNS890 | LIREN |
| 2011-01-31 | KNNS890 | ESCAPR |
| 2011-01-24 | KNNS890 | LETRES |
| 2002-01-16 | KNNS890 | AUDOPR |
| 2001-01-19 | KNNS890 | LIREN |
| 2000-10-20 | KNNS890 | LICCNV |
| 1996-04-18 | KNNS890 | AUTHPR |
| 1996-04-18 | KNNS890 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1215857 | 2026-08-02 01:09:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNNS890 | ULS 1215857 | 2026-08-02 01:09:32 |
| Status | A | ULS 1215857 | 2026-08-02 01:09:32 |
| Service | PW | ULS 1215857 | 2026-08-02 01:09:32 |
| Grant Date | 2021-03-17 | ULS 1215857 | 2026-08-02 01:09:32 |
| Expiration Date | 2031-04-18 | ULS 1215857 | 2026-08-02 01:09:32 |