Universal Licensing System
WPER923
DD Incorporated
License details
| ULS identifier | 1927976 |
|---|
| Call sign | WPER923 |
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| Radio service | YJ |
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| Status | A |
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| Grant date | 2024-03-20 |
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| Expiration | 2034-04-18 |
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| Frequency range | 856.3125 - 859.0875 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | DIABLO, CONTRA COSTA, CA |
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| Coordinates | 37.8810278, -121.9160833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:15:29 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 856.31250000 | | | 60.000000 | 100.000000 | |
| 1 | 1 | FB2 | 859.08750000 | | | 60.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 856.31250000 | | 4K00F1E |
| 1 | 1 | 856.31250000 | | 4K00F1D |
| 1 | 1 | 856.31250000 | | 7K60FXE |
| 1 | 1 | 856.31250000 | | 20K0F2D |
| 1 | 1 | 856.31250000 | | 4K00F2D |
| 1 | 1 | 856.31250000 | | 4K00F7W |
| 1 | 1 | 856.31250000 | | 20K0F3E |
| 1 | 1 | 859.08750000 | | 20K0F2D |
| 1 | 1 | 859.08750000 | | 4K00F2D |
| 1 | 1 | 859.08750000 | | 7K60FXE |
| 1 | 1 | 859.08750000 | | 4K00F1E |
| 1 | 1 | 859.08750000 | | 4K00F7W |
| 1 | 1 | 859.08750000 | | 4K00F1D |
| 1 | 1 | 859.08750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT DIABLO, DIABLO, CONTRA COSTA, CA | 37.88102778, -121.91608333 | 1152.000 m | MAST | 7.000 m structure / 7.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | 928.000 | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 1601 Neptune Drive, San Leandro, CA | ALAMEDA | 5108956715 |
License history
| Date | File or call sign | Action |
|---|
| 2024-03-20 | WPER923 | LIREN |
| 2024-01-22 | WPER923 | LETRES |
| 2021-02-05 | WPER923 | LIMOD |
| 2014-04-18 | WPER923 | LIREN |
| 2014-04-16 | WPER923 | ESCAPR |
| 2014-01-20 | WPER923 | LETRES |
| 2009-11-17 | WPER923 | LIASS |
| 2009-10-14 | WPER923 | ESUAPR |
| 2008-01-14 | WPER923 | ESUAPR |
| 2007-05-14 | WPER923 | LIPASS |
| 2007-01-29 | WPER923 | LETCNS |
| 2006-04-28 | WPER923 | LIMOD |
| 2006-04-20 | WPER923 | ESUAPR |
| 2006-02-21 | WPER923 | AUTHPR |
| 2006-02-17 | WPER923 | COR |
| 2006-02-17 | WPER923 | INTDUP |
| 2004-07-13 | WPER923 | LIAUA |
| 2004-07-12 | WPER923 | ESUAPR |
| 2004-04-12 | WPER923 | LITRAN |
| 2004-01-26 | WPER923 | LETRES |
| 2001-04-06 | WPER923 | LIASS |
| 2001-01-12 | WPER923 | LITRAN |
| 2000-11-24 | WPER923 | LICCNV |
| 1999-06-15 | WPER923 | LIREN |
| 1999-06-15 | WPER923 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1927976 | 2026-08-02 01:15:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPER923 | ULS 1927976 | 2026-08-02 01:15:29 |
| Status | A | ULS 1927976 | 2026-08-02 01:15:29 |
| Service | YJ | ULS 1927976 | 2026-08-02 01:15:29 |
| Grant Date | 2024-03-20 | ULS 1927976 | 2026-08-02 01:15:29 |
| Expiration Date | 2034-04-18 | ULS 1927976 | 2026-08-02 01:15:29 |