Universal Licensing System
WRNC931
License details
| ULS identifier | 4470609 |
|---|---|
| Call sign | WRNC931 |
| Radio service | IG |
| Status | A |
| Grant date | 2021-07-16 |
| Expiration | 2031-07-16 |
| Frequency range | 152.435 - 153.05 MHz (3 frequencies) |
| Locations | 12 |
| Representative location | CASTLE ROCK SPRINGS, SONOMA, CA |
| Coordinates | 38.7790833, -122.7549722 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:14:21 |
Licensee
| Name | GEYSERS POWER COMPANY, LLC |
|---|---|
| Applicant type | L |
| FRN | 0005773320 |
| Location | MIDDLETOWN, CA |
| Address | 10350 SOCRATES MINE RD, MIDDLETOWN, CA, 95461 |
| Phone | 7074316265 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | FB | 152.43500000 | 50.000000 | 50.000000 | |||
| 2 | 1 | FB | 152.43500000 | 50.000000 | 50.000000 | |||
| 3 | 1 | FB | 152.43500000 | 50.000000 | 50.000000 | |||
| 4 | 1 | FB | 152.43500000 | 50.000000 | 50.000000 | |||
| 5 | 1 | FB | 152.43500000 | 50.000000 | 42.000000 | |||
| 6 | 1 | FB | 152.43500000 | 50.000000 | 50.000000 | |||
| 7 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 8 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 9 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 10 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 11 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 12 | 1 | MO | 152.43500000 | 50.000000 | 50.000000 | |||
| 1 | 1 | FB | 152.97500000 | 50.000000 | 50.000000 | |||
| 2 | 1 | FB | 152.97500000 | 50.000000 | 50.000000 | |||
| 3 | 1 | FB | 152.97500000 | 50.000000 | 50.000000 | |||
| 4 | 1 | FB | 152.97500000 | 50.000000 | 50.000000 | |||
| 5 | 1 | FB | 152.97500000 | 50.000000 | 42.000000 | |||
| 6 | 1 | FB | 152.97500000 | 50.000000 | 50.000000 | |||
| 7 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 8 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 9 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 10 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 11 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 12 | 1 | MO | 152.97500000 | 50.000000 | 50.000000 | |||
| 1 | 1 | FB | 153.05000000 | 50.000000 | 50.000000 | |||
| 2 | 1 | FB | 153.05000000 | 50.000000 | 50.000000 | |||
| 3 | 1 | FB | 153.05000000 | 50.000000 | 50.000000 | |||
| 4 | 1 | FB | 153.05000000 | 50.000000 | 50.000000 | |||
| 5 | 1 | FB | 153.05000000 | 50.000000 | 42.000000 | |||
| 6 | 1 | FB | 153.05000000 | 50.000000 | 50.000000 | |||
| 7 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 | |||
| 8 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 | |||
| 9 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 | |||
| 10 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 | |||
| 11 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 | |||
| 12 | 1 | MO | 153.05000000 | 50.000000 | 50.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 1 | 1 | 152.43500000 | 7K60FXE | |
| 1 | 1 | 152.43500000 | 11K2F3E | |
| 2 | 1 | 152.43500000 | 7K60FXE | |
| 2 | 1 | 152.43500000 | 11K2F3E | |
| 3 | 1 | 152.43500000 | 11K2F3E | |
| 3 | 1 | 152.43500000 | 7K60FXE | |
| 4 | 1 | 152.43500000 | 11K2F3E | |
| 4 | 1 | 152.43500000 | 7K60FXE | |
| 5 | 1 | 152.43500000 | 7K60FXE | |
| 5 | 1 | 152.43500000 | 11K2F3E | |
| 6 | 1 | 152.43500000 | 11K2F3E | |
| 6 | 1 | 152.43500000 | 7K60FXE | |
| 7 | 1 | 152.43500000 | 7K60FXE | |
| 7 | 1 | 152.43500000 | 11K2F3E | |
| 8 | 1 | 152.43500000 | 11K2F3E | |
| 8 | 1 | 152.43500000 | 7K60FXE | |
| 9 | 1 | 152.43500000 | 7K60FXE | |
| 9 | 1 | 152.43500000 | 11K2F3E | |
| 10 | 1 | 152.43500000 | 7K60FXE | |
| 10 | 1 | 152.43500000 | 11K2F3E | |
| 11 | 1 | 152.43500000 | 7K60FXE | |
| 11 | 1 | 152.43500000 | 11K2F3E | |
| 12 | 1 | 152.43500000 | 7K60FXE | |
| 12 | 1 | 152.43500000 | 11K2F3E | |
| 1 | 1 | 152.97500000 | 7K60FXE | |
| 1 | 1 | 152.97500000 | 11K2F3E | |
| 2 | 1 | 152.97500000 | 7K60FXE | |
| 2 | 1 | 152.97500000 | 11K2F3E | |
| 3 | 1 | 152.97500000 | 11K2F3E | |
| 3 | 1 | 152.97500000 | 7K60FXE | |
| 4 | 1 | 152.97500000 | 7K60FXE | |
| 4 | 1 | 152.97500000 | 11K2F3E | |
| 5 | 1 | 152.97500000 | 11K2F3E | |
| 5 | 1 | 152.97500000 | 7K60FXE | |
| 6 | 1 | 152.97500000 | 11K2F3E | |
| 6 | 1 | 152.97500000 | 7K60FXE | |
| 7 | 1 | 152.97500000 | 11K2F3E | |
| 7 | 1 | 152.97500000 | 7K60FXE | |
| 8 | 1 | 152.97500000 | 7K60FXE | |
| 8 | 1 | 152.97500000 | 11K2F3E | |
| 9 | 1 | 152.97500000 | 7K60FXE | |
| 9 | 1 | 152.97500000 | 11K2F3E | |
| 10 | 1 | 152.97500000 | 7K60FXE | |
| 10 | 1 | 152.97500000 | 11K2F3E | |
| 11 | 1 | 152.97500000 | 11K2F3E | |
| 11 | 1 | 152.97500000 | 7K60FXE | |
| 12 | 1 | 152.97500000 | 7K60FXE | |
| 12 | 1 | 152.97500000 | 11K2F3E | |
| 1 | 1 | 153.05000000 | 7K60FXE | |
| 1 | 1 | 153.05000000 | 11K2F3E | |
| 2 | 1 | 153.05000000 | 11K2F3E | |
| 2 | 1 | 153.05000000 | 7K60FXE | |
| 3 | 1 | 153.05000000 | 11K2F3E | |
| 3 | 1 | 153.05000000 | 7K60FXE | |
| 4 | 1 | 153.05000000 | 11K2F3E | |
| 4 | 1 | 153.05000000 | 7K60FXE | |
| 5 | 1 | 153.05000000 | 11K2F3E | |
| 5 | 1 | 153.05000000 | 7K60FXE | |
| 6 | 1 | 153.05000000 | 7K60FXE | |
| 6 | 1 | 153.05000000 | 11K2F3E | |
| 7 | 1 | 153.05000000 | 11K2F3E | |
| 7 | 1 | 153.05000000 | 7K60FXE | |
| 8 | 1 | 153.05000000 | 7K60FXE | |
| 8 | 1 | 153.05000000 | 11K2F3E | |
| 9 | 1 | 153.05000000 | 11K2F3E | |
| 9 | 1 | 153.05000000 | 7K60FXE | |
| 10 | 1 | 153.05000000 | 7K60FXE | |
| 10 | 1 | 153.05000000 | 11K2F3E | |
| 11 | 1 | 153.05000000 | 7K60FXE | |
| 11 | 1 | 153.05000000 | 11K2F3E | |
| 12 | 1 | 153.05000000 | 11K2F3E | |
| 12 | 1 | 153.05000000 | 7K60FXE |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | GRANT POWER PLANT, 6 MI NE OF, CASTLE ROCK SPRINGS, SONOMA, CA | 38.77908333, -122.75497222 | 858.000 m | BANT | 7.000 m structure / 8.000 m overall | |
| 2 | T | GEYSER ADMIN CENTER, 2.5 MI NW, CASTLE ROCK SPRINGS, SONOMA, CA | 38.77747222, -122.74544444 | 833.000 m | BANT | 7.000 m structure / 8.000 m overall | |
| 3 | T | SOCRATES POWER PLANT, 2 MI W, CASTLE ROCK SPRINGS, SONOMA, CA | 38.76872222, -122.74788889 | 822.000 m | BANT | 6.000 m structure / 7.000 m overall | |
| 4 | T | SR1 OFFICE, 2 MI W OF, CASTLE ROCK SPRINGS, SONOMA, CA | 38.77788889, -122.74102778 | 887.000 m | BANT | 7.000 m structure / 8.000 m overall | |
| 5 | T | BIG GEYSERS POWER PLANT, 1.5 MI W OF, CASTLE ROCK SPRINGS, LAKE, CA | 38.77300000, -122.72911111 | 983.000 m | BANT | 6.000 m structure / 7.000 m overall | |
| 6 | T | QUICKSILVER POWER PLANT, 5.5 MI NW OF, CASTLE ROCK SPRINGS, LAKE, CA | 38.76627778, -122.70705556 | 722.000 m | BANT | 7.000 m structure / 8.000 m overall | |
| 7 | T | ||||||
| 8 | T | ||||||
| 9 | T | ||||||
| 10 | T | ||||||
| 11 | T | ||||||
| 12 | T |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 8.000 m | 231.000 | |||||
| 1 | 2 | T | 8.000 m | 215.000 | |||||
| 1 | 3 | T | 7.000 m | 215.000 | |||||
| 1 | 4 | T | 8.000 m | 273.000 | |||||
| 1 | 5 | T | 7.000 m | 377.000 | |||||
| 1 | 6 | T | 8.000 m | 123.000 | |||||
| 1 | 7 | T | |||||||
| 1 | 8 | T | |||||||
| 1 | 9 | T | |||||||
| 1 | 10 | T | |||||||
| 1 | 11 | T | |||||||
| 1 | 12 | T |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 10350 SOCRATES MINE RD, MIDDLETOWN, CA | LAKE | 7074316265 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2026-01-07 | WRNC931 | LITRAN |
| 2025-12-11 | WRNC931 | LIAUA |
| 2021-07-16 | WRNC931 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 4470609 | 2026-08-02 01:14:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WRNC931 | ULS 4470609 | 2026-08-02 01:14:21 |
| Status | A | ULS 4470609 | 2026-08-02 01:14:21 |
| Service | IG | ULS 4470609 | 2026-08-02 01:14:21 |
| Grant Date | 2021-07-16 | ULS 4470609 | 2026-08-02 01:14:21 |
| Expiration Date | 2031-07-16 | ULS 4470609 | 2026-08-02 01:14:21 |