Universal Licensing System
WPMS984
IMPERIAL MANUFACTURING
License details
| ULS identifier | 1800376 |
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| Call sign | WPMS984 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1998-12-07 |
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| Expiration | 2003-12-07 |
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| Cancellation | 2004-02-08 |
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| Frequency range | 464.35 - 469.5375 MHz (4 frequencies) |
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| Locations | 2 |
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| Representative location | PORTLAND, MULTNOMAH, OR |
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| Coordinates | 45.5384444, -122.4631389 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:26:48 |
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Licensee
| Name | IMPERIAL MANUFACTURING |
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| Applicant type | C |
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| Location | PORTLAND, OR |
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| Address | 2271NE 194TH, PORTLAND, OR, 97230 |
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| Phone | 5036655539 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB | 464.35000000 | | | 25.000000 | 25.000000 | |
| 2 | 1 | MO | 464.35000000 | | | 4.000000 | | |
| 2 | 1 | MO | 469.48750000 | | | 2.000000 | | |
| 2 | 1 | MO | 469.51250000 | | | 2.000000 | | |
| 2 | 1 | MO | 469.53750000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.35000000 | | 20K0F3E |
| 2 | 1 | 464.35000000 | | 20K0F3E |
| 2 | 1 | 469.48750000 | | 11K0F3E |
| 2 | 1 | 469.51250000 | | 11K0F3E |
| 2 | 1 | 469.53750000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 2271 NE 194TH, PORTLAND, MULTNOMAH, OR | 45.53844444, -122.46313889 | 57.000 m | BMAST | 4.000 m structure / 5.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 5.000 m | | | | 3.000 | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2271 NE 194TH, PORTLAND, OR | | 5036655539 |
License history
| Date | File or call sign | Action |
|---|
| 2004-02-08 | WPMS984 | LIEXP |
| 2003-09-15 | WPMS984 | LETRES |
| 2002-06-28 | WPMS984 | AUDOPR |
| 2000-11-23 | WPMS984 | LICCNV |
| 1998-12-07 | WPMS984 | AUTHPR |
| 1998-12-07 | WPMS984 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1800376 | 2026-08-02 01:26:48 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMS984 | ULS 1800376 | 2026-08-02 01:26:48 |
| Status | E | ULS 1800376 | 2026-08-02 01:26:48 |
| Service | IG | ULS 1800376 | 2026-08-02 01:26:48 |
| Grant Date | 1998-12-07 | ULS 1800376 | 2026-08-02 01:26:48 |
| Expiration Date | 2003-12-07 | ULS 1800376 | 2026-08-02 01:26:48 |
| Cancellation Date | 2004-02-08 | ULS 1800376 | 2026-08-02 01:26:48 |