Universal Licensing System
WPNU272
ROI SYSTEMS INC
License details
| ULS identifier | 1806640 |
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| Call sign | WPNU272 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1999-06-17 |
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| Expiration | 2004-06-17 |
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| Cancellation | 2004-08-22 |
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| Frequency range | 456.575 - 464.55 MHz (2 frequencies) |
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| Locations | 2 |
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| Representative location | HENNEPIN, MN |
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| Coordinates | 44.9721944, -93.3516111 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:52 |
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Licensee
| Name | ROI SYSTEMS INC |
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| Applicant type | C |
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| Location | ST LOUIS PARK, MN |
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| Address | 435 FORD RD, ST LOUIS PARK, MN, 55426 |
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| Phone | 6125950500 |
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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 | 456.57500000 | | | 5.000000 | | |
| 2 | 1 | MOI | 464.55000000 | | | 5.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 456.57500000 | | 20K0F3E |
| 2 | 1 | 464.55000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | HENNEPIN, MN | 44.97219444, -93.35161111 | | | | |
| 2 | T | US | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | | | 6125950500 |
License history
| Date | File or call sign | Action |
|---|
| 2004-08-22 | WPNU272 | LIEXP |
| 2004-03-22 | WPNU272 | LETRES |
| 2000-11-23 | WPNU272 | LICCNV |
| 1999-06-17 | WPNU272 | LIISS |
| 1999-06-17 | WPNU272 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1806640 | 2026-08-02 01:26:52 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | WPNU272 | ULS 1806640 | 2026-08-02 01:26:52 |
| Status | E | ULS 1806640 | 2026-08-02 01:26:52 |
| Service | IG | ULS 1806640 | 2026-08-02 01:26:52 |
| Grant Date | 1999-06-17 | ULS 1806640 | 2026-08-02 01:26:52 |
| Expiration Date | 2004-06-17 | ULS 1806640 | 2026-08-02 01:26:52 |
| Cancellation Date | 2004-08-22 | ULS 1806640 | 2026-08-02 01:26:52 |