Universal Licensing System
WRKN631
Surf Air Wireless, LLC
License details
| ULS identifier | 4379146 |
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| Call sign | WRKN631 |
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| Radio service | MG |
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| Status | A |
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| Grant date | 2021-01-23 |
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| Expiration | 2031-01-23 |
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| Frequency range | 10915 MHz |
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| Locations | 2 |
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| Representative location | Momence, KANKAKEE, IL |
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| Coordinates | 41.1471944, -87.6436667 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:44:30 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 10915.00000000 | | | | | |
| 1 | 1 | FXO | 10915.00000000 | | | | | |
| 1 | 1 | FXO | 10915.00000000 | | | | | |
| 1 | 1 | FXO | 10915.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 10915.00000000 | | 79M6D7D |
| 1 | 1 | 10915.00000000 | | 79M6D7D |
| 1 | 1 | 10915.00000000 | | 79M6D7D |
| 1 | 1 | 10915.00000000 | | 79M6D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 1752 North 12000E Road, Momence, KANKAKEE, IL | 41.14719444, -87.64366667 | 190.500 m | SILO | 38.100 m structure / 39.600 m overall | |
| 2 | R | | 41.22938889, -87.62563889 | 210.300 m | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | Ubiquiti Networks Inc. AF-11G35 | | S | 35.0000 | 9.4000 | | |
| 1 | 2 | R | Ubiquiti Networks Inc. AF-11G35 | | | 35.0000 | 0.0000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2022-04-26 | WRKN631 | LETCNS |
| 2021-08-03 | WRKN631 | LITRAN |
| 2021-03-24 | WRKN631 | LIAUA |
| 2021-01-23 | WRKN631 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4379146 | 2026-08-02 02:44:30 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKN631 | ULS 4379146 | 2026-08-02 02:44:30 |
| Status | A | ULS 4379146 | 2026-08-02 02:44:30 |
| Service | MG | ULS 4379146 | 2026-08-02 02:44:30 |
| Grant Date | 2021-01-23 | ULS 4379146 | 2026-08-02 02:44:30 |
| Expiration Date | 2031-01-23 | ULS 4379146 | 2026-08-02 02:44:30 |