Universal Licensing System
WPNQ840
MIDWEST MACHINERY CO
License details
| ULS identifier | 1804840 |
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| Call sign | WPNQ840 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-05-07 |
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| Expiration | 2004-05-07 |
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| Cancellation | 2004-07-11 |
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| Frequency range | 451.85 - 452.975 MHz (5 frequencies) |
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| Locations | 1 |
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| Representative location | ST. LOUIS, MO |
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| Coordinates | 38.6311667, -90.3478889 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:50 |
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Licensee
| Name | MIDWEST MACHINERY CO |
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| Applicant type | C |
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| Location | SAINT LOUIS, MO |
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| Address | 413 HANLEY INDUSTRIAL CT, SAINT LOUIS, MO, 631441592 |
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| Phone | 3146473250 |
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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 | MO | 451.85000000 | | | 5.000000 | | |
| 1 | 1 | MO | 452.42500000 | | | 5.000000 | | |
| 1 | 1 | MO | 452.55000000 | | | 5.000000 | | |
| 1 | 1 | MO | 452.65000000 | | | 5.000000 | | |
| 1 | 1 | MO | 452.97500000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.85000000 | | 20K0F3E |
| 1 | 1 | 452.42500000 | | 20K0F3E |
| 1 | 1 | 452.55000000 | | 20K0F3E |
| 1 | 1 | 452.65000000 | | 20K0F3E |
| 1 | 1 | 452.97500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | ST. LOUIS, MO | 38.63116667, -90.34788889 | | | | |
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 | | | 3146473250 |
License history
| Date | File or call sign | Action |
|---|
| 2004-07-11 | WPNQ840 | LIEXP |
| 2004-02-09 | WPNQ840 | LETRES |
| 2001-10-12 | WPNQ840 | AUDOPR |
| 2000-11-23 | WPNQ840 | LICCNV |
| 1999-05-07 | WPNQ840 | AUTHPR |
| 1999-05-07 | WPNQ840 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1804840 | 2026-08-02 01:26:50 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPNQ840 | ULS 1804840 | 2026-08-02 01:26:50 |
| Status | E | ULS 1804840 | 2026-08-02 01:26:50 |
| Service | IG | ULS 1804840 | 2026-08-02 01:26:50 |
| Grant Date | 1999-05-07 | ULS 1804840 | 2026-08-02 01:26:50 |
| Expiration Date | 2004-05-07 | ULS 1804840 | 2026-08-02 01:26:50 |
| Cancellation Date | 2004-07-11 | ULS 1804840 | 2026-08-02 01:26:50 |