Universal Licensing System
WRMF939
BOB, LLC
License details
| ULS identifier | 4431415 |
|---|
| Call sign | WRMF939 |
|---|
| Radio service | CF |
|---|
| Status | A |
|---|
| Grant date | 2021-04-02 |
|---|
| Expiration | 2031-04-02 |
|---|
| Frequency range | 23275 MHz |
|---|
| Locations | 2 |
|---|
| Representative location | Mokena, WILL, IL |
|---|
| Coordinates | 41.5444444, -87.8399444 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-09 15:44:02 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 23275.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
| 1 | 1 | FXO | 23275.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 23275.00000000 | | 47M3D7W |
| 1 | 1 | 23275.00000000 | | 47M3D7W |
| 1 | 1 | 23275.00000000 | | 47M3D7W |
| 1 | 1 | 23275.00000000 | | 47M3D7W |
| 1 | 1 | 23275.00000000 | | 47M3D7W |
| 1 | 1 | 23275.00000000 | | 47M3D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 9150 W 191st St., Mokena, WILL, IL | 41.54444444, -87.83994444 | 220.000 m | BANT | 8.000 m structure / 10.000 m overall | |
| 2 | R | | 41.55427778, -87.81275000 | 216.700 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | RF Engineering & Energy R RFMA-2341UH06S | | V | 40.5000 | 64.3000 | | |
| 1 | 2 | R | RF Engineering & Energy R RFMA-2336UH03S | | | 35.3000 | 0.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2025-08-04 | WRMF939 | LITRAN |
| 2025-08-01 | WRMF939 | LITRAN |
| 2025-04-23 | WRMF939 | LITRAN |
| 2024-05-11 | WRMF939 | LIAUA |
| 2021-04-02 | WRMF939 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4431415 | 2026-08-09 15:44:02 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRMF939 | ULS 4431415 | 2026-08-09 15:44:02 |
| Status | A | ULS 4431415 | 2026-08-09 15:44:02 |
| Service | CF | ULS 4431415 | 2026-08-09 15:44:02 |
| Grant Date | 2021-04-02 | ULS 4431415 | 2026-08-09 15:44:02 |
| Expiration Date | 2031-04-02 | ULS 4431415 | 2026-08-09 15:44:02 |