Universal Licensing System
WNWB879
ENVIROTECH OPERATING SERVICES
License details
| ULS identifier | 1682982 |
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| Call sign | WNWB879 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-05-15 |
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| Expiration | 2002-08-06 |
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| Cancellation | 2002-12-08 |
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| Frequency range | 464.85 - 469.85 MHz (2 frequencies) |
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| Locations | 3 |
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| Representative location | PORTLAND, MULTNOMAH, OR |
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| Coordinates | 45.4890000, -122.6964722 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:14 |
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Licensee
| Name | ENVIROTECH OPERATING SERVICES |
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| Applicant type | C |
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| FRN | 0003431905 |
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| Location | VANCOUVER, WA |
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| Address | 1800 KOTOBUKI WAY, VANCOUVER, WA, 98660 |
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| Phone | 3606960959 |
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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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| 2 | 1 | FB4 | 464.85000000 | | | 90.000000 | 150.000000 | |
| 3 | 1 | MO | 464.85000000 | | | 25.000000 | 25.000000 | |
| 1 | 1 | FX1 | 469.85000000 | | | 25.000000 | 25.000000 | |
| 3 | 1 | MO | 469.85000000 | | | 25.000000 | 25.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 464.85000000 | | 20K0F3E |
| 3 | 1 | 464.85000000 | | 20K0F3E |
| 1 | 1 | 469.85000000 | | 20K0F3E |
| 3 | 1 | 469.85000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | WA | | | | | |
| 2 | T | KGON TOWER END OF SW COUNCIL DR, PORTLAND, MULTNOMAH, OR | 45.48900000, -122.69647222 | 310.000 m | | 184.000 m structure | N |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
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| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 122.000 m | | | | 0.000 | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 1800 KOTOBUKI WAY, VANCOUVER, WA | | 3606960959 |
License history
| Date | File or call sign | Action |
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| 2002-12-08 | WNWB879 | LIEXP |
| 2002-05-13 | WNWB879 | LETRES |
| 2002-04-22 | WNWB879 | LETAUS |
| 2000-11-23 | WNWB879 | LICCNV |
| 1997-05-15 | WNWB879 | AUTHPR |
| 1997-05-15 | WNWB879 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
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| ULS | 1682982 | 2026-08-02 01:12:14 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WNWB879 | ULS 1682982 | 2026-08-02 01:12:14 |
| Status | E | ULS 1682982 | 2026-08-02 01:12:14 |
| Service | IG | ULS 1682982 | 2026-08-02 01:12:14 |
| Grant Date | 1997-05-15 | ULS 1682982 | 2026-08-02 01:12:14 |
| Expiration Date | 2002-08-06 | ULS 1682982 | 2026-08-02 01:12:14 |
| Cancellation Date | 2002-12-08 | ULS 1682982 | 2026-08-02 01:12:14 |