Universal Licensing System
WRFB691
Northern Air Systems
License details
| ULS identifier | 4243863 |
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| Call sign | WRFB691 |
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| Radio service | IG |
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| Status | A |
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| Grant date | 2020-01-24 |
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| Expiration | 2030-01-24 |
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| Frequency range | 462.8125 MHz |
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| Locations | 1 |
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| Representative location | IL |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:23:27 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MOI | 462.81250000 | | | 5.000000 | 5.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 462.81250000 | | 11K0F3E |
| 1 | 1 | 462.81250000 | | 7K60FXE |
| 1 | 1 | 462.81250000 | | 7K60FXD |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | IL | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 683 E. Center St., Grayslake, IL | LAKE | 8472238877 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-06 | WRFB691 | LIAUA |
| 2020-01-24 | WRFB691 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4243863 | 2026-08-02 01:23:27 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRFB691 | ULS 4243863 | 2026-08-02 01:23:27 |
| Status | A | ULS 4243863 | 2026-08-02 01:23:27 |
| Service | IG | ULS 4243863 | 2026-08-02 01:23:27 |
| Grant Date | 2020-01-24 | ULS 4243863 | 2026-08-02 01:23:27 |
| Expiration Date | 2030-01-24 | ULS 4243863 | 2026-08-02 01:23:27 |