Universal Licensing System
WPEM281
TOHONO O'ODHAM NATION OF ARIZONA
License details
| ULS identifier | 1267105 |
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| Call sign | WPEM281 |
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| Radio service | PW |
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| Status | E |
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| Grant date | 2014-03-08 |
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| Expiration | 2024-03-17 |
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| Cancellation | 2024-05-18 |
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| Frequency range | 453.725 - 458.725 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | PIMA, AZ |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:14:40 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 453.72500000 | | | 100.000000 | 180.000000 | |
| 2 | 1 | FB2 | 453.72500000 | | | 50.000000 | 80.000000 | |
| 3 | 1 | FB | 453.72500000 | | | 100.000000 | 180.000000 | |
| 4 | 1 | MO | 453.72500000 | | | 100.000000 | 100.000000 | |
| 4 | 1 | MO | 458.72500000 | | | 100.000000 | 100.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 453.72500000 | | 11K2F3E |
| 1 | 1 | 453.72500000 | | 11K2F1D |
| 2 | 1 | 453.72500000 | | 11K2F3E |
| 2 | 1 | 453.72500000 | | 11K2F1D |
| 3 | 1 | 453.72500000 | | 11K2F3E |
| 3 | 1 | 453.72500000 | | 11K2F1D |
| 4 | 1 | 453.72500000 | | 11K2F1D |
| 4 | 1 | 453.72500000 | | 11K2F3E |
| 4 | 1 | 458.72500000 | | 11K2F3E |
| 4 | 1 | 458.72500000 | | 11K2F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | KITT PEAK OBSERVATORY SITE, THREE POINTS, PIMA, AZ | 31.96230556, -111.60038889 | 2096.000 m | GTOWER | 3.000 m structure / 5.000 m overall | N |
| 2 | T | QUIJO TOA MOUNTAIN, SELLS, PIMA, AZ | 32.13758333, -112.15930556 | 1183.000 m | GTOWER | 6.000 m structure / 9.000 m overall | N |
| 3 | T | SELLS ARIZONA BASE, SELLS, PIMA, AZ | 31.91675000, -111.87844444 | 725.000 m | GTOWER | 8.000 m structure / 9.000 m overall | N |
| 4 | T | PIMA, AZ | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 5.000 m | | | | 1011.900 | |
| 1 | 2 | T | | 9.000 m | | | | 452.900 | |
| 1 | 3 | T | | 9.000 m | | | | -40.700 | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | SELLS ARIZONA HWY 86, SELLS, AZ | PIMA | 5203830270 |
License history
| Date | File or call sign | Action |
|---|
| 2024-05-18 | WPEM281 | LIEXP |
| 2024-03-07 | WPEM281 | ESURNW |
| 2023-12-25 | WPEM281 | LETRES |
| 2014-03-08 | WPEM281 | LIREN |
| 2014-02-15 | WPEM281 | ESURNW |
| 2014-01-16 | WPEM281 | ESURNW |
| 2013-12-23 | WPEM281 | LETRES |
| 2013-12-17 | WPEM281 | ESURNW |
| 2013-01-25 | WPEM281 | LIMOD |
| 2006-04-03 | WPEM281 | EFUAPR |
| 2006-04-03 | WPEM281 | ESUAPR |
| 2006-03-30 | WPEM281 | LIAUA |
| 2006-03-29 | WPEM281 | ESUAPR |
| 2004-01-14 | WPEM281 | LIREN |
| 2003-12-24 | WPEM281 | LIAUA |
| 2003-12-22 | WPEM281 | LETRES |
| 2001-11-28 | WPEM281 | AUDOPR |
| 2000-10-20 | WPEM281 | LICCNV |
| 1999-01-11 | WPEM281 | LIREN |
| 1999-01-11 | WPEM281 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1267105 | 2026-08-02 01:14:40 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPEM281 | ULS 1267105 | 2026-08-02 01:14:40 |
| Status | E | ULS 1267105 | 2026-08-02 01:14:40 |
| Service | PW | ULS 1267105 | 2026-08-02 01:14:40 |
| Grant Date | 2014-03-08 | ULS 1267105 | 2026-08-02 01:14:40 |
| Expiration Date | 2024-03-17 | ULS 1267105 | 2026-08-02 01:14:40 |
| Cancellation Date | 2024-05-18 | ULS 1267105 | 2026-08-02 01:14:40 |