Universal Licensing System
WPKP425
PERSONAL PRODUCTIVITY TOOLS INC
License details
| ULS identifier | 1749300 |
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| Call sign | WPKP425 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-05-29 |
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| Expiration | 2002-05-29 |
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| Cancellation | 2002-09-29 |
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| Frequency range | 464.5 - 464.55 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | CA |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:29:03 |
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Licensee
| Name | PERSONAL PRODUCTIVITY TOOLS INC |
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| Applicant type | C |
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| Location | LOS ALTOS, CA |
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| Address | 14141 MIRANDA RD, LOS ALTOS, CA, 94022 |
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| Phone | 4159177000 |
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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 | MOI | 464.50000000 | | | 5.000000 | | |
| 1 | 1 | MOI | 464.55000000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.50000000 | | 20K0F3E |
| 1 | 1 | 464.55000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 14141 MIRANDA RD LOS ALTOS, HILLS, CA | | 4159177000 |
License history
| Date | File or call sign | Action |
|---|
| 2002-09-29 | WPKP425 | LIEXP |
| 2002-03-04 | WPKP425 | LETRES |
| 2000-11-23 | WPKP425 | LICCNV |
| 1997-05-29 | WPKP425 | LIISS |
| 1997-05-29 | WPKP425 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1749300 | 2026-08-02 01:29:03 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPKP425 | ULS 1749300 | 2026-08-02 01:29:03 |
| Status | E | ULS 1749300 | 2026-08-02 01:29:03 |
| Service | IG | ULS 1749300 | 2026-08-02 01:29:03 |
| Grant Date | 1997-05-29 | ULS 1749300 | 2026-08-02 01:29:03 |
| Expiration Date | 2002-05-29 | ULS 1749300 | 2026-08-02 01:29:03 |
| Cancellation Date | 2002-09-29 | ULS 1749300 | 2026-08-02 01:29:03 |