Universal Licensing System
WDN4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1974711 |
|---|
| Call sign | WDN4 |
|---|
| Radio service | AF |
|---|
| Status | A |
|---|
| Grant date | 2026-03-27 |
|---|
| Expiration | 2036-04-19 |
|---|
| Frequency range | 129.525 - 136.975 MHz (4 frequencies) |
|---|
| Locations | 1 |
|---|
| Representative location | FRESNO, FRESNO, CA |
|---|
| Coordinates | 36.7766667, -119.7277778 |
|---|
| 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 | 129.52500000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 131.55000000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 136.65000000 | | | 25.000000 | | HL |
| 1 | 1 | FA | 136.97500000 | | | 25.000000 | | HL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 129.52500000 | | 13K0A2D |
| 1 | 1 | 131.55000000 | | 13K0A2D |
| 1 | 1 | 136.65000000 | | 14K0G1D |
| 1 | 1 | 136.97500000 | | 14K0G1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | FRESNO YOSEMITE INTERNATIONAL AIRPORT, FRESNO, FRESNO, CA | 36.77666667, -119.72777778 | 101.300 m | BANT | 10.000 m structure / 11.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 11.000 m | | | 360.0000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 2551 RIVA RD, ANNAPOLIS, MD | ANNE ARUNDEL | 4102664034 |
License history
| Date | File or call sign | Action |
|---|
| 2026-03-27 | WDN4 | LIREN |
| 2021-07-28 | WDN4 | LIAUA |
| 2019-09-25 | WDN4 | LIMOD |
| 2016-03-29 | WDN4 | LIREN |
| 2016-01-25 | WDN4 | LETRES |
| 2015-10-23 | WDN4 | LIMOD |
| 2015-08-26 | WDN4 | ESUAPR |
| 2015-02-06 | WDN4 | LIAUA |
| 2015-02-05 | WDN4 | LIAUA |
| 2015-02-05 | WDN4 | ESUAPR |
| 2015-02-04 | WDN4 | ESUAPR |
| 2007-03-01 | WDN4 | AUTHPR |
| 2006-05-02 | WDN4 | LIREN |
| 2006-03-07 | WDN4 | AUTHPR |
| 2006-01-23 | WDN4 | LETRES |
| 2006-01-01 | WDN4 | LIASS |
| 2005-07-25 | WDN4 | ESCAPR |
| 2001-04-27 | WDN4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1974711 | 2026-08-02 02:08:29 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WDN4 | ULS 1974711 | 2026-08-02 02:08:29 |
| Status | A | ULS 1974711 | 2026-08-02 02:08:29 |
| Service | AF | ULS 1974711 | 2026-08-02 02:08:29 |
| Grant Date | 2026-03-27 | ULS 1974711 | 2026-08-02 02:08:29 |
| Expiration Date | 2036-04-19 | ULS 1974711 | 2026-08-02 02:08:29 |