Universal Licensing System
WRKN540
NorthfieldWiFi
License details
| ULS identifier | 4379048 |
|---|
| Call sign | WRKN540 |
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| Radio service | MG |
|---|
| 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 - 11565 MHz (3 frequencies) |
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| Locations | 1 |
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| Coordinates | 44.3896944, -92.7005000 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:48:19 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | FXO | 10915.00000000 | | | | | |
| 1 | 2 | FXO | 10915.00000000 | | | | | |
| 1 | 2 | FXO | 10915.00000000 | | | | | |
| 1 | 2 | FXO | 10915.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 3 | FXO | 10995.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
| 1 | 1 | FXO | 11565.00000000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 10915.00000000 | | 79M6D7D |
| 1 | 2 | 10915.00000000 | | 79M6D7D |
| 1 | 2 | 10915.00000000 | | 79M6D7D |
| 1 | 2 | 10915.00000000 | | 79M6D7D |
| 1 | 3 | 10995.00000000 | | 79M6D7D |
| 1 | 3 | 10995.00000000 | | 79M6D7D |
| 1 | 3 | 10995.00000000 | | 79M6D7D |
| 1 | 3 | 10995.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
| 1 | 1 | 11565.00000000 | | 79M6D7D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 415th St. (Hader # 87839), Zumbrota, GOODHUE, MN | 44.36566667, -92.82952778 | 364.800 m | LTOWER | 127.700 m structure / 131.100 m overall | N |
| 2 | R | | 44.34147222, -93.06333333 | 360.000 m | | | |
| 3 | R | | 44.29086111, -92.78736111 | 341.300 m | | | |
| 4 | R | | 44.38969444, -92.70050000 | 370.000 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 | 261.9000 | | |
| 1 | 2 | R | Ubiquiti Networks Inc. AF-11G35 | | | 35.0000 | 0.0000 | | |
| 1 | 3 | R | Ubiquiti Networks Inc. AF-11G35 | | | 35.0000 | 0.0000 | | |
| 1 | 4 | R | Ubiquiti Networks Inc. AF-11G35 | | | 35.0000 | 0.0000 | | |
| 2 | 1 | T | Ubiquiti Networks Inc. AF-11G35 | | S | 35.0000 | 158.0000 | | |
| 3 | 1 | T | Ubiquiti Networks Inc. AF-11G35 | | S | 35.0000 | 75.4000 | | |
License history
| Date | File or call sign | Action |
|---|
| 2023-04-19 | WRKN540 | LIMOD |
| 2022-05-13 | WRKN540 | LIMOD |
| 2022-04-26 | WRKN540 | LETCNS |
| 2021-12-27 | WRKN540 | LIMOD |
| 2021-01-23 | WRKN540 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 4379048 | 2026-08-02 02:48:19 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WRKN540 | ULS 4379048 | 2026-08-02 02:48:19 |
| Status | A | ULS 4379048 | 2026-08-02 02:48:19 |
| Service | MG | ULS 4379048 | 2026-08-02 02:48:19 |
| Grant Date | 2021-01-23 | ULS 4379048 | 2026-08-02 02:48:19 |
| Expiration Date | 2031-01-23 | ULS 4379048 | 2026-08-02 02:48:19 |