Universal Licensing System
WQXB409
AMERICAN CONVERTERS, INC.
License details
| ULS identifier | 3772246 |
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| Call sign | WQXB409 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2016-01-20 |
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| Expiration | 2026-01-20 |
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| Cancellation | 2026-03-28 |
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| Frequency range | 451.3625 - 457.4625 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | LONGMONT, BOULDER, CO |
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| Coordinates | 40.1532500, -105.1198333 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:21:35 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.36250000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 451.68750000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 452.78750000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 456.41250000 | | | 5.000000 | 5.000000 | |
| 1 | 1 | MO | 457.46250000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.36250000 | | 7K60FXE |
| 1 | 1 | 451.36250000 | | 11K2F3E |
| 1 | 1 | 451.36250000 | | 11K2F1E |
| 1 | 1 | 451.68750000 | | 11K2F3E |
| 1 | 1 | 451.68750000 | | 11K2F1E |
| 1 | 1 | 451.68750000 | | 7K60FXE |
| 1 | 1 | 452.78750000 | | 11K2F3E |
| 1 | 1 | 452.78750000 | | 7K60FXE |
| 1 | 1 | 452.78750000 | | 11K2F1E |
| 1 | 1 | 456.41250000 | | 7K60FXE |
| 1 | 1 | 456.41250000 | | 11K2F1E |
| 1 | 1 | 456.41250000 | | 11K2F3E |
| 1 | 1 | 457.46250000 | | 7K60FXE |
| 1 | 1 | 457.46250000 | | 11K2F3E |
| 1 | 1 | 457.46250000 | | 11K2F1E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | LONGMONT, BOULDER, CO | 40.15325000, -105.11983333 | | | | |
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 |
|---|
| 1 | 1510 NELSON ROAD, LONGMONT, CO | BOULDER | 3034859011 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-28 | WQXB409 | LIEXP |
| 2025-11-24 | WQXB409 | LETRES |
| 2016-10-25 | WQXB409 | LETCNS |
| 2016-01-20 | WQXB409 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 3772246 | 2026-08-02 01:21:35 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WQXB409 | ULS 3772246 | 2026-08-02 01:21:35 |
| Status | E | ULS 3772246 | 2026-08-02 01:21:35 |
| Service | IG | ULS 3772246 | 2026-08-02 01:21:35 |
| Grant Date | 2016-01-20 | ULS 3772246 | 2026-08-02 01:21:35 |
| Expiration Date | 2026-01-20 | ULS 3772246 | 2026-08-02 01:21:35 |
| Cancellation Date | 2026-03-28 | ULS 3772246 | 2026-08-02 01:21:35 |