Universal Licensing System
WPPD837
CRYSTAL SMR INC
License details
| ULS identifier | 1759790 |
|---|
| Call sign | WPPD837 |
|---|
| Radio service | YG |
|---|
| Status | A |
|---|
| Grant date | 2024-10-17 |
|---|
| Expiration | 2034-11-03 |
|---|
| Frequency range | 483.6375 - 486.6375 MHz (2 frequencies) |
|---|
| Locations | 4 |
|---|
| Representative location | FREMONT, ALAMEDA, CA |
|---|
| Coordinates | 37.4998056, -121.8720278 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:20 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO8 | 483.63750000 | | | 25.000000 | 63.000000 | |
| 3 | 1 | FB8 | 483.63750000 | | | 25.000000 | 225.000000 | |
| 4 | 1 | FB8 | 483.63750000 | | | 200.000000 | 1000.000000 | |
| 5 | 1 | MO8 | 483.63750000 | | | 25.000000 | 63.000000 | |
| 6 | 1 | FB8 | 483.63750000 | | | 225.000000 | 225.000000 | |
| 7 | 1 | MO8 | 483.63750000 | | | 25.000000 | 63.000000 | |
| 2 | 1 | MO8 | 486.63750000 | | | 25.000000 | 63.000000 | |
| 5 | 1 | MO8 | 486.63750000 | | | 25.000000 | 63.000000 | |
| 7 | 1 | MO8 | 486.63750000 | | | 25.000000 | 63.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 483.63750000 | | 7K60FXE |
| 2 | 1 | 483.63750000 | | 4K00F7W |
| 2 | 1 | 483.63750000 | | 11K2F3E |
| 2 | 1 | 483.63750000 | | 4K00F2D |
| 2 | 1 | 483.63750000 | | 4K00F1E |
| 2 | 1 | 483.63750000 | | 4K00F1D |
| 3 | 1 | 483.63750000 | | 4K00F1E |
| 3 | 1 | 483.63750000 | | 11K2F3E |
| 3 | 1 | 483.63750000 | | 4K00F1D |
| 3 | 1 | 483.63750000 | | 4K00F2D |
| 3 | 1 | 483.63750000 | | 7K60FXE |
| 3 | 1 | 483.63750000 | | 4K00F7W |
| 4 | 1 | 483.63750000 | | 4K00F7W |
| 4 | 1 | 483.63750000 | | 7K60FXE |
| 4 | 1 | 483.63750000 | | 4K00F1E |
| 4 | 1 | 483.63750000 | | 4K00F1D |
| 4 | 1 | 483.63750000 | | 11K2F3E |
| 4 | 1 | 483.63750000 | | 4K00F2D |
| 5 | 1 | 483.63750000 | | 4K00F2D |
| 5 | 1 | 483.63750000 | | 7K60FXE |
| 5 | 1 | 483.63750000 | | 4K00F7W |
| 5 | 1 | 483.63750000 | | 4K00F1D |
| 5 | 1 | 483.63750000 | | 4K00F1E |
| 5 | 1 | 483.63750000 | | 11K2F3E |
| 6 | 1 | 483.63750000 | | 4K00F7W |
| 6 | 1 | 483.63750000 | | 4K00F1E |
| 6 | 1 | 483.63750000 | | 4K00F1D |
| 6 | 1 | 483.63750000 | | 4K00F2D |
| 6 | 1 | 483.63750000 | | 7K60FXE |
| 6 | 1 | 483.63750000 | | 11K2F3E |
| 7 | 1 | 483.63750000 | | 4K00F7W |
| 7 | 1 | 483.63750000 | | 11K2F3E |
| 7 | 1 | 483.63750000 | | 4K00F1E |
| 7 | 1 | 483.63750000 | | 4K00F1D |
| 7 | 1 | 483.63750000 | | 7K60FXE |
| 7 | 1 | 483.63750000 | | 4K00F2D |
| 2 | 1 | 486.63750000 | | 4K00F2D |
| 2 | 1 | 486.63750000 | | 7K60FXE |
| 2 | 1 | 486.63750000 | | 4K00F1D |
| 2 | 1 | 486.63750000 | | 4K00F7W |
| 2 | 1 | 486.63750000 | | 4K00F1E |
| 2 | 1 | 486.63750000 | | 11K2F3E |
| 5 | 1 | 486.63750000 | | 7K60FXE |
| 5 | 1 | 486.63750000 | | 11K2F3E |
| 5 | 1 | 486.63750000 | | 4K00F1E |
| 5 | 1 | 486.63750000 | | 4K00F7W |
| 5 | 1 | 486.63750000 | | 4K00F2D |
| 5 | 1 | 486.63750000 | | 4K00F1D |
| 7 | 1 | 486.63750000 | | 4K00F1D |
| 7 | 1 | 486.63750000 | | 4K00F7W |
| 7 | 1 | 486.63750000 | | 7K60FXE |
| 7 | 1 | 486.63750000 | | 4K00F1E |
| 7 | 1 | 486.63750000 | | 11K2F3E |
| 7 | 1 | 486.63750000 | | 4K00F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 2 | T | | | | | | N |
| 3 | T | TWIN PEAKS, SAN FRANCISCO, SAN FRANCISCO, CA | 37.75686111, -122.44911111 | 238.000 m | GTOWER | 23.000 m structure / 23.000 m overall | N |
| 4 | T | ALLISON, FREMONT, ALAMEDA, CA | 37.49980556, -121.87202778 | 790.000 m | GTOWER | 21.000 m structure / 21.000 m overall | N |
| 5 | T | | | | | | N |
| 6 | T | 6 MI NW VACAVILLE, VACAVILLE, SOLANO, CA | 38.40880556, -122.11052778 | 836.000 m | GTOWER | 55.000 m structure / 55.000 m overall | N |
| 7 | T | | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | 23.000 m | | | | 236.900 | |
| 1 | 4 | T | | 21.000 m | | | | 591.500 | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | 55.000 m | | | | 627.400 | |
| 1 | 7 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1601 NEPTUNE DR, SAN LEANDRO, CA | ALAMEDA | 5108959500 |
License history
| Date | File or call sign | Action |
|---|
| 2024-10-17 | WPPD837 | LIREN |
| 2024-08-12 | WPPD837 | LETRES |
| 2023-10-11 | WPPD837 | LIMOD |
| 2014-11-06 | WPPD837 | LIREN |
| 2014-08-11 | WPPD837 | LETRES |
| 2013-01-01 | WPPD837 | LTSAPR |
| 2013-01-01 | WPPD837 | LIMOD |
| 2006-09-18 | WPPD837 | LETCNS |
| 2005-12-20 | WPPD837 | LIMOD |
| 2004-11-03 | WPPD837 | LIREN |
| 2004-08-09 | WPPD837 | LETRES |
| 2002-02-25 | WPPD837 | AUDOPR |
| 2000-11-23 | WPPD837 | LICCNV |
| 1999-11-03 | WPPD837 | AUTHPR |
| 1999-11-03 | WPPD837 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1759790 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPD837 | ULS 1759790 | 2026-08-02 01:14:20 |
| Status | A | ULS 1759790 | 2026-08-02 01:14:20 |
| Service | YG | ULS 1759790 | 2026-08-02 01:14:20 |
| Grant Date | 2024-10-17 | ULS 1759790 | 2026-08-02 01:14:20 |
| Expiration Date | 2034-11-03 | ULS 1759790 | 2026-08-02 01:14:20 |