Universal Licensing System
WRCK636
ImOn Communications, LLC
License details
| ULS identifier | 4094800 |
|---|
| Call sign | WRCK636 |
|---|
| Radio service | MG |
|---|
| Status | A |
|---|
| Grant date | 2018-10-25 |
|---|
| Expiration | 2028-10-25 |
|---|
| Frequency range | 17815 - 17915 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | Sioux City, PLYMOUTH, IA |
|---|
| Coordinates | 42.5740278, -96.3700556 |
|---|
| Source archive | l_micro.zip |
|---|
| Dataset refreshed | 2026-08-02 02:43:19 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 17815.00000000 | | | | | |
| 1 | 1 | FXO | 17915.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 17815.00000000 | | 42M6D7W |
| 1 | 1 | 17815.00000000 | | 47M1D7W |
| 1 | 1 | 17815.00000000 | | 45M8D7W |
| 1 | 1 | 17915.00000000 | | 45M8D7W |
| 1 | 1 | 17915.00000000 | | 47M1D7W |
| 1 | 1 | 17915.00000000 | | 42M6D7W |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 23199-23001 Glacier Rd, Sioux City, PLYMOUTH, IA | 42.57402778, -96.37005556 | 427.600 m | LTOWER | 21.000 m structure / 22.000 m overall | |
| 2 | R | | 42.56494444, -96.40088889 | 353.600 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-1839UH06S03 | | H | 38.9000 | 248.2000 | | |
| 1 | 2 | R | RF Engineering & Energy R RFMA-1839UH06S03 | | | 38.9000 | | | |
Special conditions
| Type | Condition code |
|---|
| P | 4020 |
| P | 5106 |
License history
| Date | File or call sign | Action |
|---|
| 2025-04-01 | WRCK636 | LIASS |
| 2023-03-31 | WRCK636 | LITRAN |
| 2023-03-17 | WRCK636 | LIMOD |
| 2018-10-25 | WRCK636 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4094800 | 2026-08-02 02:43:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRCK636 | ULS 4094800 | 2026-08-02 02:43:19 |
| Status | A | ULS 4094800 | 2026-08-02 02:43:19 |
| Service | MG | ULS 4094800 | 2026-08-02 02:43:19 |
| Grant Date | 2018-10-25 | ULS 4094800 | 2026-08-02 02:43:19 |
| Expiration Date | 2028-10-25 | ULS 4094800 | 2026-08-02 02:43:19 |