Universal Licensing System
KD21033
Simpson Investment Company
License details
| ULS identifier | 1769110 |
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| Call sign | KD21033 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 2003-08-05 |
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| Expiration | 2013-10-19 |
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| Cancellation | 2009-06-05 |
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| Frequency range | 451.375 - 456.4875 MHz (3 frequencies) |
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| Locations | 1 |
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| Representative location | MULTNOMAH, OR |
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| Coordinates | 45.5831667, -122.6678611 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:12:42 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.37500000 | | | 5.000000 | | |
| 1 | 1 | MO | 451.48750000 | | | 2.000000 | | |
| 1 | 1 | MO | 456.48750000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.37500000 | | 20K0F3E |
| 1 | 1 | 451.48750000 | | 20K0F3E |
| 1 | 1 | 456.48750000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | MULTNOMAH, OR | 45.58316667, -122.66786111 | | | | |
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 | OREGON OVERLAY PLANT SWAN ISLAND INDUSTRIAL PK, PORTLAND, OR | MULTNOMAH | 5032891111 |
License history
| Date | File or call sign | Action |
|---|
| 2009-06-06 | KD21033 | LICAN |
| 2008-12-17 | KD21033 | LIAUA |
| 2008-12-16 | KD21033 | ESUAPR |
| 2005-12-22 | KD21033 | LIAUA |
| 2005-12-21 | KD21033 | ESUAPR |
| 2005-03-30 | KD21033 | LIAUA |
| 2005-03-29 | KD21033 | ESUAPR |
| 2005-03-08 | KD21033 | ESCAPR |
| 2005-03-08 | KD21033 | LIAUA |
| 2005-03-07 | KD21033 | EFUAPR |
| 2005-03-07 | KD21033 | ESUAPR |
| 2003-08-05 | KD21033 | LIREN |
| 2003-07-28 | KD21033 | LETRES |
| 2002-01-11 | KD21033 | AUDOPR |
| 2001-12-05 | KD21033 | LIAUA |
| 2000-11-23 | KD21033 | LICCNV |
| 1998-11-04 | KD21033 | LIREN |
| 1998-11-04 | KD21033 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1769110 | 2026-08-02 01:12:42 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KD21033 | ULS 1769110 | 2026-08-02 01:12:42 |
| Status | C | ULS 1769110 | 2026-08-02 01:12:42 |
| Service | IG | ULS 1769110 | 2026-08-02 01:12:42 |
| Grant Date | 2003-08-05 | ULS 1769110 | 2026-08-02 01:12:42 |
| Expiration Date | 2013-10-19 | ULS 1769110 | 2026-08-02 01:12:42 |
| Cancellation Date | 2009-06-05 | ULS 1769110 | 2026-08-02 01:12:42 |