Universal Licensing System
WPWY428
SAN MATEO, COUNTY OF
License details
| ULS identifier | 2484702 |
|---|
| Call sign | WPWY428 |
|---|
| Radio service | PW |
|---|
| Status | A |
|---|
| Grant date | 2022-11-28 |
|---|
| Expiration | 2033-02-07 |
|---|
| Frequency range | 491.8875 MHz |
|---|
| Locations | 2 |
|---|
| Representative location | SAN MATEO, SAN MATEO, CA |
|---|
| Coordinates | 37.5038056, -122.3707778 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:09:32 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 488.88750000 | | | 100.000000 | 150.000000 | |
| 2 | 1 | MO | 488.88750000 | | | 4.000000 | 8.000000 | |
| 2 | 1 | MO | 488.88750000 | | | 20.000000 | 40.000000 | |
| 2 | 1 | MO | 491.88750000 | | | 20.000000 | 40.000000 | |
| 2 | 1 | MO | 491.88750000 | | | 4.000000 | 8.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 488.88750000 | | 11K3F3E |
| 1 | 1 | 488.88750000 | | 20K0F3E |
| 2 | 1 | 488.88750000 | | 11K3F3E |
| 2 | 1 | 488.88750000 | | 20K0F3E |
| 2 | 1 | 488.88750000 | | 11K3F3E |
| 2 | 1 | 488.88750000 | | 20K0F3E |
| 2 | 1 | 491.88750000 | | 11K3F3E |
| 2 | 1 | 491.88750000 | | 20K0F3E |
| 2 | 1 | 491.88750000 | | 11K3F3E |
| 2 | 1 | 491.88750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SKYLAWN CEMETERY 4 MI SW, SAN MATEO, SAN MATEO, CA | 37.50380556, -122.37077778 | 342.900 m | TOWER | 21.300 m structure / 21.300 m overall | |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 18.300 m | V | 7.0000 | 160.0000 | 258.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 501 WINSLOW ST, REDWOOD, CA | SAN MATEO | 6503634442 |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-30 | WPWY428 | LIAUA |
| 2022-11-28 | WPWY428 | LIREN |
| 2022-11-14 | WPWY428 | LETRES |
| 2012-11-20 | WPWY428 | LIREN |
| 2012-11-12 | WPWY428 | LETRES |
| 2012-11-09 | WPWY428 | ESURNW |
| 2012-01-12 | WPWY428 | LIMOD |
| 2012-01-11 | WPWY428 | ESUAPR |
| 2003-11-10 | WPWY428 | LETCNS |
| 2003-02-07 | WPWY428 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2484702 | 2026-08-02 01:09:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPWY428 | ULS 2484702 | 2026-08-02 01:09:32 |
| Status | A | ULS 2484702 | 2026-08-02 01:09:32 |
| Service | PW | ULS 2484702 | 2026-08-02 01:09:32 |
| Grant Date | 2022-11-28 | ULS 2484702 | 2026-08-02 01:09:32 |
| Expiration Date | 2033-02-07 | ULS 2484702 | 2026-08-02 01:09:32 |