Universal Licensing System
WDF4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1974604 |
|---|
| Call sign | WDF4 |
|---|
| Radio service | AF |
|---|
| Status | A |
|---|
| Grant date | 2019-09-05 |
|---|
| Expiration | 2029-09-29 |
|---|
| Frequency range | 129.5 MHz |
|---|
| Locations | 1 |
|---|
| Representative location | SAN DIEGO, SAN DIEGO, CA |
|---|
| Coordinates | 32.7336944, -117.2039722 |
|---|
| Source archive | l_coast.zip |
|---|
| Dataset refreshed | 2026-08-02 02:08:29 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 129.50000000 | | | 10.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 129.50000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SAN DIEGO INTERNATIONAL AIRPORT, SAN DIEGO, SAN DIEGO, CA | 32.73369444, -117.20397222 | 5.000 m | BANT | 6.000 m structure / 8.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 8.000 m | | | 360.0000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | UAL FLIGHT DISPATCH 1200 E ALGONQUIN RD, ELK GROVE VILLAGE, IL | | |
License history
| Date | File or call sign | Action |
|---|
| 2019-09-05 | WDF4 | LIREN |
| 2019-07-08 | WDF4 | LETRES |
| 2015-02-06 | WDF4 | LIAUA |
| 2015-02-05 | WDF4 | ESUAPR |
| 2015-02-05 | WDF4 | LIAUA |
| 2015-02-04 | WDF4 | ESUAPR |
| 2009-08-25 | WDF4 | LIREN |
| 2009-07-06 | WDF4 | LETRES |
| 2007-03-01 | WDF4 | AUTHPR |
| 2006-03-07 | WDF4 | AUTHPR |
| 2006-01-01 | WDF4 | LIASS |
| 2005-07-25 | WDF4 | ESCAPR |
| 2004-08-24 | WDF4 | LIREN |
| 2004-07-05 | WDF4 | LETRES |
| 2001-04-27 | WDF4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1974604 | 2026-08-02 02:08:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDF4 | ULS 1974604 | 2026-08-02 02:08:29 |
| Status | A | ULS 1974604 | 2026-08-02 02:08:29 |
| Service | AF | ULS 1974604 | 2026-08-02 02:08:29 |
| Grant Date | 2019-09-05 | ULS 1974604 | 2026-08-02 02:08:29 |
| Expiration Date | 2029-09-29 | ULS 1974604 | 2026-08-02 02:08:29 |