Universal Licensing System
WPKN581
Fisher Wireless Services, Inc.
License details
| ULS identifier | 1749047 |
|---|
| Call sign | WPKN581 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2022-04-01 |
|---|
| Expiration | 2032-06-07 |
|---|
| Frequency range | 484.8375 - 487.8375 MHz (2 frequencies) |
|---|
| Locations | 6 |
|---|
| Representative location | WALNUT CREEK, CONTRA COSTA, CA |
|---|
| Coordinates | 37.8815833, -121.9191389 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:13:25 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 484.83750000 | | | 75.000000 | 190.000000 | |
| 3 | 1 | FB6 | 484.83750000 | | | 75.000000 | 190.000000 | |
| 4 | 1 | FB6 | 484.83750000 | | | 76.000000 | 190.000000 | |
| 5 | 1 | MO | 484.83750000 | | | 50.000000 | 50.000000 | |
| 7 | 1 | MO | 484.83750000 | | | 50.000000 | 50.000000 | |
| 8 | 1 | MO | 484.83750000 | | | 50.000000 | 50.000000 | |
| 5 | 1 | MO | 487.83750000 | | | 50.000000 | 50.000000 | |
| 7 | 1 | MO | 487.83750000 | | | 50.000000 | 50.000000 | |
| 8 | 1 | MO | 487.83750000 | | | 50.000000 | 50.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 484.83750000 | | 20K0F3E |
| 3 | 1 | 484.83750000 | | 20K0F3E |
| 4 | 1 | 484.83750000 | | 20K0F3E |
| 5 | 1 | 484.83750000 | | 20K0F3E |
| 7 | 1 | 484.83750000 | | 20K0F3E |
| 8 | 1 | 484.83750000 | | 20K0F3E |
| 5 | 1 | 487.83750000 | | 20K0F3E |
| 7 | 1 | 487.83750000 | | 20K0F3E |
| 8 | 1 | 487.83750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT DIABLO STATE PARK 9 MI E, WALNUT CREEK, CONTRA COSTA, CA | 37.88158333, -121.91913889 | 1091.000 m | TOWER | 87.000 m structure / 69.000 m overall | N |
| 3 | T | BIG ROCK RIDGE, NOVATO, MARIN, CA | 38.05908333, -122.60413889 | 576.000 m | TOWER | 31.000 m structure / 21.000 m overall | N |
| 4 | T | MOUNT VEEDER, GLEN ELLEN, SONOMA, CA | 38.37297222, -122.46330556 | 695.000 m | TOWER | 28.000 m structure / 20.000 m overall | N |
| 5 | T | | | | | | |
| 7 | T | | | | | | |
| 8 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 86.000 m | | | | 914.000 | |
| 1 | 3 | T | | 27.000 m | | | | 465.000 | |
| 1 | 4 | T | | 25.000 m | | | | 500.000 | |
| 1 | 5 | T | | | | | | | |
| 1 | 7 | T | | | | | | | |
| 1 | 8 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 101 Roundhill Dr, Rockaway, NJ | MORRIS | 9736257500 |
License history
| Date | File or call sign | Action |
|---|
| 2022-07-08 | WPKN581 | LIAUA |
| 2022-04-01 | WPKN581 | LIREN |
| 2022-03-14 | WPKN581 | LETRES |
| 2021-03-17 | WPKN581 | LIAUA |
| 2013-08-28 | WPKN581 | LIASS |
| 2013-06-25 | WPKN581 | LTSAPR |
| 2013-06-10 | WPKN581 | LIMOD |
| 2013-06-05 | WPKN581 | LTSAPR |
| 2012-05-19 | WPKN581 | LIREN |
| 2012-04-11 | WPKN581 | LIAUA |
| 2012-04-11 | WPKN581 | LTSAPR |
| 2012-03-12 | WPKN581 | LETRES |
| 2011-11-21 | WPKN581 | LIASS |
| 2011-08-08 | WPKN581 | LTSAPR |
| 2005-12-22 | WPKN581 | LIMOD |
| 2003-04-22 | WPKN581 | AUDOPR |
| 2002-07-16 | WPKN581 | LIASS |
| 2002-06-07 | WPKN581 | LIREN |
| 2002-02-19 | WPKN581 | LETRES |
| 2000-11-23 | WPKN581 | LICCNV |
| 1998-10-20 | WPKN581 | AUTHPR |
| 1997-05-14 | WPKN581 | LIAUA |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1749047 | 2026-08-02 01:13:25 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKN581 | ULS 1749047 | 2026-08-02 01:13:25 |
| Status | A | ULS 1749047 | 2026-08-02 01:13:25 |
| Service | IG | ULS 1749047 | 2026-08-02 01:13:25 |
| Grant Date | 2022-04-01 | ULS 1749047 | 2026-08-02 01:13:25 |
| Expiration Date | 2032-06-07 | ULS 1749047 | 2026-08-02 01:13:25 |