Universal Licensing System
WPKR593
SEMIVAC
License details
| ULS identifier | 1929374 |
|---|
| Call sign | WPKR593 |
|---|
| Radio service | YU |
|---|
| Status | E |
|---|
| Grant date | 1997-06-16 |
|---|
| Expiration | 2002-06-16 |
|---|
| Cancellation | 2002-10-20 |
|---|
| Frequency range | 897.1375 - 939.675 MHz (20 frequencies) |
|---|
| Locations | 5 |
|---|
| Representative location | WALNUT CREEK, CONTRA COSTA, CA |
|---|
| Coordinates | 37.8815833, -121.9191389 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:28:06 |
|---|
Licensee
| Name | SEMIVAC |
|---|
| Applicant type | C |
|---|
| Location | MILPITAS, CA |
|---|
| Address | 568 GIBRALTAR RD, MILPITAS, CA, 95035 |
|---|
| Phone | 4089469733 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 3 | 1 | FX1 | 897.13750000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 897.13750000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 897.13750000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 898.16250000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 898.16250000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 898.16250000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.13750000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.13750000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.13750000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.15000000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.15000000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.15000000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.16250000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.16250000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.16250000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.17500000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.17500000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.17500000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.18750000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.18750000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.18750000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 899.66250000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 899.66250000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 899.66250000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 900.66250000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 900.66250000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 900.66250000 | | | 35.000000 | 35.000000 | |
| 3 | 1 | FX1 | 900.67500000 | | | 35.000000 | 35.000000 | |
| 4 | 1 | MO | 900.67500000 | | | 35.000000 | 35.000000 | |
| 5 | 1 | MO | 900.67500000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | FB4C | 936.13750000 | | | 110.000000 | 30.000000 | |
| 1 | 1 | FB4C | 937.16250000 | | | 110.000000 | 30.000000 | |
| 2 | 1 | FB4C | 938.13750000 | | | 125.000000 | 200.000000 | |
| 2 | 1 | FB4C | 938.15000000 | | | 125.000000 | 200.000000 | |
| 2 | 1 | FB4C | 938.16250000 | | | 125.000000 | 200.000000 | |
| 2 | 1 | FB4C | 938.17500000 | | | 125.000000 | 200.000000 | |
| 2 | 1 | FB4C | 938.18750000 | | | 125.000000 | 200.000000 | |
| 1 | 1 | FB4C | 938.66250000 | | | 110.000000 | 30.000000 | |
| 1 | 1 | FB4C | 939.66250000 | | | 110.000000 | 30.000000 | |
| 1 | 1 | FB4C | 939.67500000 | | | 110.000000 | 30.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 3 | 1 | 897.13750000 | | 13K6F3E |
| 4 | 1 | 897.13750000 | | 13K6F3E |
| 5 | 1 | 897.13750000 | | 13K6F3E |
| 3 | 1 | 898.16250000 | | 13K6F3E |
| 4 | 1 | 898.16250000 | | 13K6F3E |
| 5 | 1 | 898.16250000 | | 13K6F3E |
| 3 | 1 | 899.13750000 | | 13K6F3E |
| 4 | 1 | 899.13750000 | | 13K6F3E |
| 5 | 1 | 899.13750000 | | 13K6F3E |
| 3 | 1 | 899.15000000 | | 13K6F3E |
| 4 | 1 | 899.15000000 | | 13K6F3E |
| 5 | 1 | 899.15000000 | | 13K6F3E |
| 3 | 1 | 899.16250000 | | 13K6F3E |
| 4 | 1 | 899.16250000 | | 13K6F3E |
| 5 | 1 | 899.16250000 | | 13K6F3E |
| 3 | 1 | 899.17500000 | | 13K6F3E |
| 4 | 1 | 899.17500000 | | 13K6F3E |
| 5 | 1 | 899.17500000 | | 13K6F3E |
| 3 | 1 | 899.18750000 | | 13K6F3E |
| 4 | 1 | 899.18750000 | | 13K6F3E |
| 5 | 1 | 899.18750000 | | 13K6F3E |
| 3 | 1 | 899.66250000 | | 13K6F3E |
| 4 | 1 | 899.66250000 | | 13K6F3E |
| 5 | 1 | 899.66250000 | | 13K6F3E |
| 3 | 1 | 900.66250000 | | 13K6F3E |
| 4 | 1 | 900.66250000 | | 13K6F3E |
| 5 | 1 | 900.66250000 | | 13K6F3E |
| 3 | 1 | 900.67500000 | | 13K6F3E |
| 4 | 1 | 900.67500000 | | 13K6F3E |
| 5 | 1 | 900.67500000 | | 13K6F3E |
| 1 | 1 | 936.13750000 | | 13K6F3E |
| 1 | 1 | 937.16250000 | | 13K6F3E |
| 2 | 1 | 938.13750000 | | 13K6F3E |
| 2 | 1 | 938.15000000 | | 13K6F3E |
| 2 | 1 | 938.16250000 | | 13K6F3E |
| 2 | 1 | 938.17500000 | | 13K6F3E |
| 2 | 1 | 938.18750000 | | 13K6F3E |
| 1 | 1 | 938.66250000 | | 13K6F3E |
| 1 | 1 | 939.66250000 | | 13K6F3E |
| 1 | 1 | 939.67500000 | | 13K6F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT DIABLO STATE PARK, WALNUT CREEK, CONTRA COSTA, CA | 37.88158333, -121.91913889 | 1091.000 m | TOWER | 87.000 m structure / 87.000 m overall | N |
| 2 | T | LOMA PRIETA MOUNTAIN, TWIN CREEKS, SANTA CLARA, CA | 37.11105556, -121.84244444 | 1134.000 m | TOWER | 62.000 m structure / 62.000 m overall | N |
| 3 | T | CA | | | | | |
| 4 | T | | | | | | |
| 5 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 64.000 m | | | | 930.000 | |
| 1 | 2 | T | | 52.000 m | | | | 714.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
| 1 | 5 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 568 GIBRALTAR RD, MILPITAS, CA | | 4089469733 |
License history
| Date | File or call sign | Action |
|---|
| 2002-10-20 | WPKR593 | LIEXP |
| 2002-03-25 | WPKR593 | LETRES |
| 2000-11-24 | WPKR593 | LICCNV |
| 1997-06-16 | WPKR593 | LIISS |
| 1997-06-16 | WPKR593 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1929374 | 2026-08-02 01:28:06 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKR593 | ULS 1929374 | 2026-08-02 01:28:06 |
| Status | E | ULS 1929374 | 2026-08-02 01:28:06 |
| Service | YU | ULS 1929374 | 2026-08-02 01:28:06 |
| Grant Date | 1997-06-16 | ULS 1929374 | 2026-08-02 01:28:06 |
| Expiration Date | 2002-06-16 | ULS 1929374 | 2026-08-02 01:28:06 |
| Cancellation Date | 2002-10-20 | ULS 1929374 | 2026-08-02 01:28:06 |