Universal Licensing System
WPMA830
PORTLAND EXPO CENTER
License details
| ULS identifier | 1790946 |
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| Call sign | WPMA830 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2003-02-19 |
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| Expiration | 2013-05-07 |
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| Cancellation | 2013-07-13 |
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| Frequency range | 451.5875 - 456.6125 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | WASHINGTON, OR |
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| Coordinates | 45.6059444, -122.6834444 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:11:19 |
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Licensee
| Name | PORTLAND EXPO CENTER |
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| Applicant type | G |
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| FRN | 0004524260 |
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| Location | PORTLAND, OR |
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| Address | 2060 NORTH MARINE DRIVE, PORTLAND, OR, 97217 |
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| Phone | 5037365200 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.58750000 | | | 2.000000 | | |
| 1 | 1 | MO | 451.61250000 | | | 2.000000 | | |
| 1 | 1 | MO | 456.58750000 | | | 2.000000 | | |
| 1 | 1 | MO | 456.61250000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.58750000 | | 11K0F3E |
| 1 | 1 | 451.61250000 | | 11K0F3E |
| 1 | 1 | 456.58750000 | | 11K0F3E |
| 1 | 1 | 456.61250000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | WASHINGTON, OR | 45.60594444, -122.68344444 | | | | |
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 | 2060 NORTH MARINE DRIVE, PORTLAND, OR | | 5037365200 |
License history
| Date | File or call sign | Action |
|---|
| 2013-07-13 | WPMA830 | LIEXP |
| 2013-02-11 | WPMA830 | LETRES |
| 2003-02-19 | WPMA830 | LIAUA |
| 2003-02-19 | WPMA830 | LIREN |
| 2003-02-10 | WPMA830 | LETRES |
| 2002-06-03 | WPMA830 | AUDOPR |
| 2000-11-23 | WPMA830 | LICCNV |
| 1998-05-07 | WPMA830 | LIISS |
| 1998-05-07 | WPMA830 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1790946 | 2026-08-02 01:11:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPMA830 | ULS 1790946 | 2026-08-02 01:11:19 |
| Status | E | ULS 1790946 | 2026-08-02 01:11:19 |
| Service | IG | ULS 1790946 | 2026-08-02 01:11:19 |
| Grant Date | 2003-02-19 | ULS 1790946 | 2026-08-02 01:11:19 |
| Expiration Date | 2013-05-07 | ULS 1790946 | 2026-08-02 01:11:19 |
| Cancellation Date | 2013-07-13 | ULS 1790946 | 2026-08-02 01:11:19 |