Universal Licensing System
WLU4
Aviation Spectrum Resources Inc
License details
| ULS identifier | 1979975 |
|---|
| Call sign | WLU4 |
|---|
| Radio service | AF |
|---|
| Status | A |
|---|
| Grant date | 2018-03-08 |
|---|
| Expiration | 2028-03-18 |
|---|
| Frequency range | 130.7 MHz |
|---|
| Locations | 1 |
|---|
| Representative location | CHICAGO, COOK, IL |
|---|
| Coordinates | 41.9597778, -87.9099444 |
|---|
| Source archive | l_coast.zip |
|---|
| Dataset refreshed | 2026-08-02 02:08:30 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FA | 130.70000000 | | | 10.000000 | | LL |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 130.70000000 | | 6K00A3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | OHARE INTERNATIONAL AIRPORT, CHICAGO, COOK, IL | 41.95977778, -87.90994444 | 204.000 m | BANT | 20.000 m structure / 25.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 25.000 m | | | 360.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2018-03-08 | WLU4 | LIREN |
| 2017-12-25 | WLU4 | LETRES |
| 2015-02-06 | WLU4 | LIAUA |
| 2015-02-05 | WLU4 | ESUAPR |
| 2015-02-05 | WLU4 | LIAUA |
| 2015-02-04 | WLU4 | ESUAPR |
| 2008-02-26 | WLU4 | LIREN |
| 2007-12-24 | WLU4 | LETRES |
| 2007-03-01 | WLU4 | AUTHPR |
| 2006-03-07 | WLU4 | AUTHPR |
| 2006-01-01 | WLU4 | LIASS |
| 2005-07-25 | WLU4 | ESCAPR |
| 2003-02-19 | WLU4 | LIREN |
| 2002-12-23 | WLU4 | LETRES |
| 2001-04-27 | WLU4 | LICCNV |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1979975 | 2026-08-02 02:08:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WLU4 | ULS 1979975 | 2026-08-02 02:08:30 |
| Status | A | ULS 1979975 | 2026-08-02 02:08:30 |
| Service | AF | ULS 1979975 | 2026-08-02 02:08:30 |
| Grant Date | 2018-03-08 | ULS 1979975 | 2026-08-02 02:08:30 |
| Expiration Date | 2028-03-18 | ULS 1979975 | 2026-08-02 02:08:30 |