Universal Licensing System
WDU3
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1974859 |
|---|
| Call sign | WDU3 |
|---|
| Radio service | AF |
|---|
| Status | C |
|---|
| Grant date | 2006-10-03 |
|---|
| Expiration | 2016-10-21 |
|---|
| Cancellation | 2013-05-21 |
|---|
| Frequency range | 131.75 MHz |
|---|
| Locations | 1 |
|---|
| Representative location | IMPERIAL, IMPERIAL, CA |
|---|
| Coordinates | 32.8333889, -115.5675000 |
|---|
| Source archive | l_coast.zip |
|---|
| Dataset refreshed | 2026-08-02 02:08:28 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 131.75000000 | | | 55.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 131.75000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | IMPERIAL COUNTY AIRPORT, IMPERIAL, IMPERIAL, CA | 32.83338889, -115.56750000 | 17.000 m | B | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 6.000 m | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2013-05-22 | WDU3 | LICAN |
| 2007-03-01 | WDU3 | AUTHPR |
| 2006-10-03 | WDU3 | LIREN |
| 2006-07-31 | WDU3 | LETRES |
| 2006-03-07 | WDU3 | AUTHPR |
| 2006-01-01 | WDU3 | LIASS |
| 2005-07-25 | WDU3 | ESCAPR |
| 2001-09-11 | WDU3 | LIREN |
| 2001-07-30 | WDU3 | LETRES |
| 2001-04-27 | WDU3 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1974859 | 2026-08-02 02:08:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDU3 | ULS 1974859 | 2026-08-02 02:08:28 |
| Status | C | ULS 1974859 | 2026-08-02 02:08:28 |
| Service | AF | ULS 1974859 | 2026-08-02 02:08:28 |
| Grant Date | 2006-10-03 | ULS 1974859 | 2026-08-02 02:08:28 |
| Expiration Date | 2016-10-21 | ULS 1974859 | 2026-08-02 02:08:28 |
| Cancellation Date | 2013-05-21 | ULS 1974859 | 2026-08-02 02:08:28 |