Universal Licensing System
WRKH721
SAN LUIS & DELTA-MENDOTA WATER AUTHORITY
License details
| ULS identifier | 4371096 |
|---|---|
| Call sign | WRKH721 |
| Radio service | IG |
| Status | C |
| Grant date | 2021-01-06 |
| Expiration | 2031-01-06 |
| Cancellation | 2022-01-05 |
| Frequency range | 451.4125 MHz |
| Locations | 12 |
| Representative location | GRAYSON, STANISLAUS, CA |
| Coordinates | 37.5218611, -121.2182222 |
| Source archive | l_LMpriv.zip |
| Dataset refreshed | 2026-08-02 01:22:29 |
Licensee
| Name | SAN LUIS & DELTA-MENDOTA WATER AUTHORITY |
|---|---|
| Applicant type | G |
| FRN | 0025626961 |
| Location | BYRON, CA |
| Address | 15990 KELSO ROAD, BYRON, CA, 94514 |
| Phone | 2098326200 |
| [email protected] |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 1 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 2 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 2 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 3 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 3 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 4 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 4 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 5 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 5 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 6 | 1 | FB | 451.41250000 | 6.000000 | 20.000000 | |||
| 6 | 1 | FXO | 451.41250000 | 6.000000 | 20.000000 | |||
| 7 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 | |||
| 8 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 | |||
| 9 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 | |||
| 10 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 | |||
| 11 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 | |||
| 12 | 1 | MO | 451.41250000 | 6.000000 | 6.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 1 | 1 | 451.41250000 | 11K1G1D | |
| 1 | 1 | 451.41250000 | 11K2F3E | |
| 1 | 1 | 451.41250000 | 11K2D1D | |
| 1 | 1 | 451.41250000 | 11K2D1D | |
| 1 | 1 | 451.41250000 | 11K2F3E | |
| 1 | 1 | 451.41250000 | 11K1G1D | |
| 2 | 1 | 451.41250000 | 11K2D1D | |
| 2 | 1 | 451.41250000 | 11K1G1D | |
| 2 | 1 | 451.41250000 | 11K2F3E | |
| 2 | 1 | 451.41250000 | 11K1G1D | |
| 2 | 1 | 451.41250000 | 11K2D1D | |
| 2 | 1 | 451.41250000 | 11K2F3E | |
| 3 | 1 | 451.41250000 | 11K2F3E | |
| 3 | 1 | 451.41250000 | 11K2D1D | |
| 3 | 1 | 451.41250000 | 11K1G1D | |
| 3 | 1 | 451.41250000 | 11K1G1D | |
| 3 | 1 | 451.41250000 | 11K2F3E | |
| 3 | 1 | 451.41250000 | 11K2D1D | |
| 4 | 1 | 451.41250000 | 11K2F3E | |
| 4 | 1 | 451.41250000 | 11K2D1D | |
| 4 | 1 | 451.41250000 | 11K1G1D | |
| 4 | 1 | 451.41250000 | 11K2F3E | |
| 4 | 1 | 451.41250000 | 11K1G1D | |
| 4 | 1 | 451.41250000 | 11K2D1D | |
| 5 | 1 | 451.41250000 | 11K1G1D | |
| 5 | 1 | 451.41250000 | 11K2F3E | |
| 5 | 1 | 451.41250000 | 11K2D1D | |
| 5 | 1 | 451.41250000 | 11K1G1D | |
| 5 | 1 | 451.41250000 | 11K2D1D | |
| 5 | 1 | 451.41250000 | 11K2F3E | |
| 6 | 1 | 451.41250000 | 11K2F3E | |
| 6 | 1 | 451.41250000 | 11K2D1D | |
| 6 | 1 | 451.41250000 | 11K1G1D | |
| 6 | 1 | 451.41250000 | 11K2D1D | |
| 6 | 1 | 451.41250000 | 11K1G1D | |
| 6 | 1 | 451.41250000 | 11K2F3E | |
| 7 | 1 | 451.41250000 | 11K1G1D | |
| 7 | 1 | 451.41250000 | 11K2F3E | |
| 7 | 1 | 451.41250000 | 11K2D1D | |
| 8 | 1 | 451.41250000 | 11K2F3E | |
| 8 | 1 | 451.41250000 | 11K1G1D | |
| 8 | 1 | 451.41250000 | 11K2D1D | |
| 9 | 1 | 451.41250000 | 11K2F3E | |
| 9 | 1 | 451.41250000 | 11K2D1D | |
| 9 | 1 | 451.41250000 | 11K1G1D | |
| 10 | 1 | 451.41250000 | 11K2D1D | |
| 10 | 1 | 451.41250000 | 11K1G1D | |
| 10 | 1 | 451.41250000 | 11K2F3E | |
| 11 | 1 | 451.41250000 | 11K1G1D | |
| 11 | 1 | 451.41250000 | 11K2F3E | |
| 11 | 1 | 451.41250000 | 11K2D1D | |
| 12 | 1 | 451.41250000 | 11K2F3E | |
| 12 | 1 | 451.41250000 | 11K2D1D | |
| 12 | 1 | 451.41250000 | 11K1G1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | ALONG THE VIADUCT, SOUTH OF NEEDHAM RD, GRAYSON, STANISLAUS, CA | 37.52186111, -121.21822222 | 56.000 m | PIPE | 4.600 m structure / 4.600 m overall | |
| 2 | T | ALONG VIADUCT, 5 KM WEST OF PATTERSON, PATTERSON, STANISLAUS, CA | 37.47638889, -121.18483333 | 55.000 m | PIPE | 4.600 m structure / 4.600 m overall | |
| 3 | T | ALONG VIADUCT, 6 KM NW OF CROWS LANDING, CROWS LANDING, STANISLAUS, CA | 37.42019444, -121.13055556 | 55.000 m | PIPE | 4.600 m structure / 4.600 m overall | |
| 4 | T | ALONG VIADUCT, 4.2 KM SW OF CROWS LANDING, CROWS LANDING, STANISLAUS, CA | 37.36627778, -121.10408333 | 56.000 m | PIPE | 4.600 m structure / 4.600 m overall | |
| 5 | T | ALONG VIADUCT, 6.5 KM SW OF NEWMAN, NEWMAN, STANISLAUS, CA | 37.29052778, -121.08755556 | 57.000 m | PIPE | 4.600 m structure / 4.600 m overall | |
| 6 | T | ALONG VIADUCT, SOUTH OF SULLIVAN RD, GUSTINE, MERCED, CA | 37.24130556, -121.07711111 | 55.000 m | PIPE | 4.600 m structure / 4.600 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 | 4.600 m | -79.000 | |||||
| 1 | 2 | T | 4.600 m | -95.500 | |||||
| 1 | 3 | T | 4.600 m | -57.800 | |||||
| 1 | 4 | T | 4.600 m | -36.700 | |||||
| 1 | 5 | T | 4.600 m | -39.400 | |||||
| 1 | 6 | T | 4.600 m | -61.100 | |||||
| 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 | 15990 KELSO ROAD, BYRON, CA | ALAMEDA | 2098326200 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2022-01-06 | WRKH721 | LICAN |
| 2021-10-05 | WRKH721 | LETCNS |
| 2021-01-06 | WRKH721 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 4371096 | 2026-08-02 01:22:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WRKH721 | ULS 4371096 | 2026-08-02 01:22:29 |
| Status | C | ULS 4371096 | 2026-08-02 01:22:29 |
| Service | IG | ULS 4371096 | 2026-08-02 01:22:29 |
| Grant Date | 2021-01-06 | ULS 4371096 | 2026-08-02 01:22:29 |
| Expiration Date | 2031-01-06 | ULS 4371096 | 2026-08-02 01:22:29 |
| Cancellation Date | 2022-01-05 | ULS 4371096 | 2026-08-02 01:22:29 |