Universal Licensing System
WPPD879
CRYSTAL SMR INC
License details
| ULS identifier | 1816898 |
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| Call sign | WPPD879 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2024-10-23 |
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| Expiration | 2034-11-04 |
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| Frequency range | 493.0375 MHz |
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| Locations | 4 |
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| Representative location | VACAVILLE, SOLANO, CA |
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| Coordinates | 38.4088056, -122.1105278 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:20 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 490.03750000 | | | 60.000000 | 119.000000 | |
| 2 | 1 | FB6 | 490.03750000 | | | 60.000000 | 181.000000 | |
| 3 | 1 | MO | 493.03750000 | | | 25.000000 | 63.000000 | |
| 4 | 1 | MO | 493.03750000 | | | 25.000000 | 63.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 490.03750000 | | 20K0F3E |
| 1 | 1 | 490.03750000 | | 11K2F3E |
| 2 | 1 | 490.03750000 | | 20K0F3E |
| 2 | 1 | 490.03750000 | | 11K2F3E |
| 3 | 1 | 493.03750000 | | 11K2F3E |
| 3 | 1 | 493.03750000 | | 20K0F3E |
| 4 | 1 | 493.03750000 | | 11K2F3E |
| 4 | 1 | 493.03750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MT VACA, VACAVILLE, SOLANO, CA | 38.40880556, -122.11052778 | 829.000 m | TOWER | 42.000 m structure / 42.000 m overall | N |
| 2 | T | DEVILS PEAK, BURLINGAME, SAN MATEO, CA | 37.54272222, -122.44775000 | 546.000 m | TOWER | 61.000 m structure / 61.000 m overall | N |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 30.000 m | | | | 722.000 | |
| 1 | 2 | T | | 61.000 m | | | | 464.000 | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1601 NEPTUNE DR, SAN LEANDRO, CA | ALAMEDA | 5108959500 |
License history
| Date | File or call sign | Action |
|---|
| 2024-10-23 | WPPD879 | LIREN |
| 2024-08-12 | WPPD879 | LETRES |
| 2014-11-06 | WPPD879 | LIREN |
| 2014-08-11 | WPPD879 | LETRES |
| 2013-01-01 | WPPD879 | LTSAPR |
| 2013-01-01 | WPPD879 | LIMOD |
| 2005-12-02 | WPPD879 | LIMOD |
| 2004-11-03 | WPPD879 | LIREN |
| 2004-08-09 | WPPD879 | LETRES |
| 2002-02-25 | WPPD879 | AUDOPR |
| 2001-10-05 | WPPD879 | COR |
| 2000-11-23 | WPPD879 | LICCNV |
| 2000-10-18 | WPPD879 | AUTHPR |
| 2000-10-18 | WPPD879 | LIMOD |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1816898 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPD879 | ULS 1816898 | 2026-08-02 01:14:20 |
| Status | A | ULS 1816898 | 2026-08-02 01:14:20 |
| Service | IG | ULS 1816898 | 2026-08-02 01:14:20 |
| Grant Date | 2024-10-23 | ULS 1816898 | 2026-08-02 01:14:20 |
| Expiration Date | 2034-11-04 | ULS 1816898 | 2026-08-02 01:14:20 |