Universal Licensing System
WPPE241
CRYSTAL SMR INC.
License details
| ULS identifier | 1816986 |
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| Call sign | WPPE241 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-11-08 |
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| Expiration | 2009-11-08 |
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| Cancellation | 2010-01-09 |
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| Frequency range | 483.4625 - 486.4625 MHz (2 frequencies) |
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| Locations | 8 |
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| Representative location | FREMONT, ALAMEDA, CA |
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| Coordinates | 37.4874444, -121.8685556 |
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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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Licensee
| Name | CRYSTAL SMR INC. |
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| Applicant type | C |
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| FRN | 0005749403 |
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| Location | SAN LEANDRO, CA |
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| Address | 1601 NEPTUNE DRIVE, SAN LEANDRO, CA, 94577 |
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| Phone | 5108959500 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB6 | 483.46250000 | | | 125.000000 | 350.000000 | |
| 2 | 1 | FB6 | 483.46250000 | | | 90.000000 | 413.000000 | |
| 3 | 1 | FB6 | 483.46250000 | | | 90.000000 | 163.000000 | |
| 4 | 1 | FB6 | 483.46250000 | | | 125.000000 | 557.000000 | |
| 5 | 1 | MO | 486.46250000 | | | 25.000000 | 63.000000 | |
| 6 | 1 | MO | 486.46250000 | | | 25.000000 | 63.000000 | |
| 7 | 1 | MO | 486.46250000 | | | 25.000000 | 63.000000 | |
| 8 | 1 | MO | 486.46250000 | | | 25.000000 | 63.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 483.46250000 | | 20K0F3E |
| 2 | 1 | 483.46250000 | | 20K0F3E |
| 3 | 1 | 483.46250000 | | 20K0F3E |
| 4 | 1 | 483.46250000 | | 20K0F3E |
| 5 | 1 | 486.46250000 | | 20K0F3E |
| 6 | 1 | 486.46250000 | | 20K0F3E |
| 7 | 1 | 486.46250000 | | 20K0F3E |
| 8 | 1 | 486.46250000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MISSION RIDGE, FREMONT, ALAMEDA, CA | 37.48744444, -121.86855556 | 775.000 m | TOWER | 43.000 m structure / 43.000 m overall | N |
| 2 | T | GRIZZLY PEAK, OAKLAND, ALAMEDA, CA | 37.85325000, -122.20941667 | 444.000 m | POLE | 43.000 m structure / 49.000 m overall | N |
| 3 | T | MOUNT VACA, VACAVILLE, SOLANO, CA | 38.40880556, -122.11052778 | 829.000 m | TOWER | 55.000 m structure / 61.000 m overall | N |
| 4 | T | WOLFBACK RIDGE, SAUSALITO, MARIN, CA | 37.84908333, -122.49997222 | 341.000 m | POLE | 31.000 m structure / 31.000 m overall | N |
| 5 | T | | | | | | |
| 6 | T | | | | | | |
| 7 | T | | | | | | |
| 8 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 43.000 m | | | | 586.000 | |
| 1 | 2 | T | | 49.000 m | | | | 354.000 | |
| 1 | 3 | T | | 61.000 m | | | | 623.000 | |
| 1 | 4 | T | | 17.000 m | | | | 282.000 | |
| 1 | 5 | T | | | | | | | |
| 1 | 6 | T | | | | | | | |
| 1 | 7 | T | | | | | | | |
| 1 | 8 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1601 NEPTUNE DRIVE, SAN LEANDRO, CA | ALAMEDA | 5108959500 |
License history
| Date | File or call sign | Action |
|---|
| 2010-01-09 | WPPE241 | LIEXP |
| 2009-08-17 | WPPE241 | LETRES |
| 2006-04-13 | WPPE241 | LIMOD |
| 2006-01-10 | WPPE241 | COR |
| 2001-10-30 | WPPE241 | LIASS |
| 2000-11-23 | WPPE241 | LICCNV |
| 1999-11-08 | WPPE241 | LIISS |
| 1999-11-08 | WPPE241 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1816986 | 2026-08-02 01:14:20 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPPE241 | ULS 1816986 | 2026-08-02 01:14:20 |
| Status | E | ULS 1816986 | 2026-08-02 01:14:20 |
| Service | IG | ULS 1816986 | 2026-08-02 01:14:20 |
| Grant Date | 1999-11-08 | ULS 1816986 | 2026-08-02 01:14:20 |
| Expiration Date | 2009-11-08 | ULS 1816986 | 2026-08-02 01:14:20 |
| Cancellation Date | 2010-01-09 | ULS 1816986 | 2026-08-02 01:14:20 |