Universal Licensing System
WQYI889
Montrose Environmental Group Inc. dba The Avogadro Group LLC
License details
| ULS identifier | 3855608 |
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| Call sign | WQYI889 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2016-10-12 |
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| Expiration | 2026-10-12 |
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| Frequency range | 464.625 - 469.625 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | Antioch, CONTRA COSTA, CA |
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| Coordinates | 38.0116667, -121.8425000 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:21:32 |
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Licensee
| Name | Montrose Environmental Group Inc. dba The Avogadro Group LLC |
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| Applicant type | C |
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| FRN | 0025915893 |
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| Location | Antioch, CA |
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| Address | 2825 Verne Roberts Circle, Antioch, CA, 94509 |
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| Phone | 9256804300 |
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| Email | [email protected] |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 464.62500000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 466.80000000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 467.05000000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 469.61250000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 469.62500000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.62500000 | | 11K0F3E |
| 1 | 1 | 464.62500000 | | 4K00F1E |
| 1 | 1 | 464.62500000 | | 8K30F1E |
| 1 | 1 | 466.80000000 | | 8K30F1E |
| 1 | 1 | 466.80000000 | | 4K00F1E |
| 1 | 1 | 466.80000000 | | 11K0F3E |
| 1 | 1 | 467.05000000 | | 11K0F3E |
| 1 | 1 | 467.05000000 | | 4K00F1E |
| 1 | 1 | 467.05000000 | | 8K30F1E |
| 1 | 1 | 469.61250000 | | 8K30F1E |
| 1 | 1 | 469.61250000 | | 4K00F1E |
| 1 | 1 | 469.61250000 | | 11K0F3E |
| 1 | 1 | 469.62500000 | | 11K0F3E |
| 1 | 1 | 469.62500000 | | 8K30F1E |
| 1 | 1 | 469.62500000 | | 4K00F1E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | Antioch, CONTRA COSTA, CA | 38.01166667, -121.84250000 | | | | |
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 | 2825 Verne Roberts Circle, Antioch, CA | CONTRA COSTA | 9256804300 |
License history
| Date | File or call sign | Action |
|---|
| 2017-07-11 | WQYI889 | LETCNS |
| 2016-10-12 | WQYI889 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3855608 | 2026-08-02 01:21:32 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQYI889 | ULS 3855608 | 2026-08-02 01:21:32 |
| Status | A | ULS 3855608 | 2026-08-02 01:21:32 |
| Service | IG | ULS 3855608 | 2026-08-02 01:21:32 |
| Grant Date | 2016-10-12 | ULS 3855608 | 2026-08-02 01:21:32 |
| Expiration Date | 2026-10-12 | ULS 3855608 | 2026-08-02 01:21:32 |