Universal Licensing System
WPPE381
CRYSTAL SMR INC
License details
| ULS identifier | 1817021 |
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| Call sign | WPPE381 |
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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 | 2034-11-09 |
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| Frequency range | 489.7875 - 492.7875 MHz (2 frequencies) |
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| Locations | 2 |
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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 | 489.78750000 | | | 60.000000 | 163.000000 | |
| 2 | 1 | MO | 492.78750000 | | | 25.000000 | 63.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 489.78750000 | | 11K2F3E |
| 1 | 1 | 489.78750000 | | 20K0F3E |
| 2 | 1 | 492.78750000 | | 11K2F3E |
| 2 | 1 | 492.78750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MOUNT VACA, VACAVILLE, SOLANO, CA | 38.40880556, -122.11052778 | 829.000 m | TOWER | 42.000 m structure / 42.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 61.000 m | | | | 623.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1601 NEPTUNE DR, SAN LEANDRO, CA | | 5108959500 |
License history
| Date | File or call sign | Action |
|---|
| 2024-10-23 | WPPE381 | LIREN |
| 2014-12-01 | WPPE381 | LIREN |
| 2014-08-18 | WPPE381 | LETRES |
| 2013-01-01 | WPPE381 | LIMOD |
| 2013-01-01 | WPPE381 | LTSAPR |
| 2004-11-03 | WPPE381 | LIREN |
| 2004-08-16 | WPPE381 | LETRES |
| 2002-02-25 | WPPE381 | AUDOPR |
| 2000-11-23 | WPPE381 | LICCNV |
| 1999-11-09 | WPPE381 | LIISS |
| 1999-11-09 | WPPE381 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1817021 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPPE381 | ULS 1817021 | 2026-08-02 01:14:20 |
| Status | A | ULS 1817021 | 2026-08-02 01:14:20 |
| Service | IG | ULS 1817021 | 2026-08-02 01:14:20 |
| Grant Date | 2024-10-23 | ULS 1817021 | 2026-08-02 01:14:20 |
| Expiration Date | 2034-11-09 | ULS 1817021 | 2026-08-02 01:14:20 |