Universal Licensing System
WPIW409
BALDWIN PARK UNIFIED SCHOOL DISTRICT
License details
| ULS identifier | 1734814 |
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| Call sign | WPIW409 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2000-09-07 |
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| Expiration | 2005-11-22 |
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| Cancellation | 2006-01-28 |
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| Frequency range | 31.16 MHz |
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| Locations | 4 |
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| Representative location | BALDWIN PARK, LOS ANGELES, CA |
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| Coordinates | 34.0763889, -117.9800556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:28:52 |
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Licensee
| Name | BALDWIN PARK UNIFIED SCHOOL DISTRICT |
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| Applicant type | G |
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| Location | BALDWIN PARK, CA |
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| Address | 3699 HOLLY DR, BALDWIN PARK, CA, 91706 |
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| Phone | 8189623311 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 31.16000000 | | | 50.000000 | 100.000000 | |
| 2 | 1 | FB | 31.16000000 | | | 50.000000 | 100.000000 | |
| 3 | 1 | FB | 31.16000000 | | | 50.000000 | 100.000000 | |
| 4 | 1 | MO | 31.16000000 | | | 110.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 31.16000000 | | 20K0F3E |
| 2 | 1 | 31.16000000 | | 20K0F3E |
| 3 | 1 | 31.16000000 | | 20K0F3E |
| 4 | 1 | 31.16000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 3600 FRAZIER ST SIERRA VISTA HIGH, BALDWIN PARK, LOS ANGELES, CA | 34.07638889, -117.98005556 | 101.000 m | B | 4.000 m structure / 7.000 m overall | N |
| 2 | T | 3600 FRAZIER ST SIERRA VISTA HIGH, BALDWIN PARK, LOS ANGELES, CA | 34.07611111, -117.98061111 | 101.000 m | B | 4.000 m structure / 7.000 m overall | N |
| 3 | T | 3900 N PUENTE AVE BALDWIN P HIGH, BALDWIN PARK, LOS ANGELES, CA | 34.08472222, -117.98311111 | 116.000 m | B | 6.000 m structure / 9.000 m overall | N |
| 4 | T | LOS ANGELES, CA | 34.09861111, -117.96088889 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | | -106.000 | |
| 1 | 2 | T | | 11.000 m | | | | -104.000 | |
| 1 | 3 | T | | 11.000 m | | | | -94.000 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 3699 HOLLY AVE, BALDWIN PARK, CA | | 8189623311 |
License history
| Date | File or call sign | Action |
|---|
| 2006-01-28 | WPIW409 | LIEXP |
| 2005-08-29 | WPIW409 | LETRES |
| 2001-08-31 | WPIW409 | AUDOPR |
| 2000-11-23 | WPIW409 | LICCNV |
| 2000-09-07 | WPIW409 | AUTHPR |
| 2000-09-07 | WPIW409 | LIREN |
| 2000-08-21 | WPIW409 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1734814 | 2026-08-02 01:28:52 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPIW409 | ULS 1734814 | 2026-08-02 01:28:52 |
| Status | E | ULS 1734814 | 2026-08-02 01:28:52 |
| Service | IG | ULS 1734814 | 2026-08-02 01:28:52 |
| Grant Date | 2000-09-07 | ULS 1734814 | 2026-08-02 01:28:52 |
| Expiration Date | 2005-11-22 | ULS 1734814 | 2026-08-02 01:28:52 |
| Cancellation Date | 2006-01-28 | ULS 1734814 | 2026-08-02 01:28:52 |