Universal Licensing System
WPNQ633
MAXWELL TECHNOLOGIES
License details
| ULS identifier | 1804689 |
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| Call sign | WPNQ633 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-05-05 |
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| Expiration | 2004-05-05 |
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| Cancellation | 2004-07-11 |
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| Frequency range | 451.975 - 456.975 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | SAN LEANDRO, ALAMEDA, CA |
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| Coordinates | 37.7035278, -122.1685833 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:15:03 |
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Licensee
| Name | MAXWELL TECHNOLOGIES |
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| Applicant type | C |
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| FRN | 0005822812 |
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| Location | SAN LEANDRO, CA |
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| Address | 2700 MERCED ST, SAN LEANDRO, CA, 94577 |
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| Phone | 5105777156 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | FB2 | 451.97500000 | | | 25.000000 | 45.000000 | |
| 2 | 1 | MO | 451.97500000 | | | 4.000000 | | |
| 2 | 1 | MO | 456.97500000 | | | 4.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.97500000 | | 20K0F3E |
| 2 | 1 | 451.97500000 | | 20K0F3E |
| 2 | 1 | 456.97500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2700 MERCED ST, SAN LEANDRO, ALAMEDA, CA | 37.70352778, -122.16858333 | 20.000 m | B | 7.000 m structure / 8.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | 8.000 m | | | | 46.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 2700 MERCED ST, SAN LEANDRO, CA | | 5105777156 |
License history
| Date | File or call sign | Action |
|---|
| 2004-07-11 | WPNQ633 | LIEXP |
| 2004-02-09 | WPNQ633 | LETRES |
| 2001-11-20 | WPNQ633 | AUDOPR |
| 2000-11-23 | WPNQ633 | LICCNV |
| 1999-05-05 | WPNQ633 | AUTHPR |
| 1999-05-05 | WPNQ633 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1804689 | 2026-08-02 01:15:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPNQ633 | ULS 1804689 | 2026-08-02 01:15:03 |
| Status | E | ULS 1804689 | 2026-08-02 01:15:03 |
| Service | IG | ULS 1804689 | 2026-08-02 01:15:03 |
| Grant Date | 1999-05-05 | ULS 1804689 | 2026-08-02 01:15:03 |
| Expiration Date | 2004-05-05 | ULS 1804689 | 2026-08-02 01:15:03 |
| Cancellation Date | 2004-07-11 | ULS 1804689 | 2026-08-02 01:15:03 |