Universal Licensing System
WQBB635
TETRA TECH EC, INC.
License details
| ULS identifier | 2654034 |
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| Call sign | WQBB635 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2004-09-15 |
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| Expiration | 2014-09-15 |
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| Cancellation | 2014-11-15 |
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| Frequency range | 461.925 - 463.3 MHz (3 frequencies) |
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| Locations | 2 |
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| Representative location | COMMERCE CITY, ADAMS, CO |
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| Coordinates | 39.8529444, -104.8485556 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:21 |
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Licensee
| Name | TETRA TECH EC, INC. |
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| Applicant type | C |
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| FRN | 0010936771 |
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| Location | COMMERCE CITY, CO |
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| Address | ROCKY MTN ARSENAL--5650 HAVANA ST. TRAILER Z-96, COMMERCE CITY, CO, 80022 |
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| Phone | 3032890374 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 461.92500000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | FBT | 461.92500000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | FB | 463.22500000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | FBT | 463.22500000 | | | 35.000000 | 35.000000 | |
| 1 | 1 | FB | 463.30000000 | | | 35.000000 | 35.000000 | |
| 2 | 1 | FBT | 463.30000000 | | | 35.000000 | 35.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.92500000 | | 19K6F1D |
| 2 | 1 | 461.92500000 | | 19K6F1D |
| 1 | 1 | 463.22500000 | | 19K6F1D |
| 2 | 1 | 463.22500000 | | 19K6F1D |
| 1 | 1 | 463.30000000 | | 19K6F1D |
| 2 | 1 | 463.30000000 | | 19K6F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 5650 HAVANA ST., COMMERCE CITY, ADAMS, CO | 39.85294444, -104.84855556 | 1585.000 m | POLE | 3.100 m structure / 4.500 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | | | 4.500 m | | 0.0000 | | 0.200 | |
| 1 | 2 | | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 5650 HAVANA ST. TRAILER Z-96, COMMERCE CITY, CO | ADAMS | 3032890111 |
License history
| Date | File or call sign | Action |
|---|
| 2014-11-15 | WQBB635 | LIEXP |
| 2014-06-23 | WQBB635 | LETRES |
| 2009-01-22 | WQBB635 | LIAUA |
| 2009-01-21 | WQBB635 | ESCAPR |
| 2008-09-19 | WQBB635 | LIMOD |
| 2008-05-21 | WQBB635 | LIAUA |
| 2008-05-20 | WQBB635 | ESCAPR |
| 2005-06-30 | WQBB635 | LIAUA |
| 2005-06-29 | WQBB635 | ESCAPR |
| 2005-06-13 | WQBB635 | LETCNS |
| 2004-09-15 | WQBB635 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2654034 | 2026-08-02 01:17:21 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQBB635 | ULS 2654034 | 2026-08-02 01:17:21 |
| Status | E | ULS 2654034 | 2026-08-02 01:17:21 |
| Service | IG | ULS 2654034 | 2026-08-02 01:17:21 |
| Grant Date | 2004-09-15 | ULS 2654034 | 2026-08-02 01:17:21 |
| Expiration Date | 2014-09-15 | ULS 2654034 | 2026-08-02 01:17:21 |
| Cancellation Date | 2014-11-15 | ULS 2654034 | 2026-08-02 01:17:21 |