Universal Licensing System
WNKR970
Arrowhead Security Systems, Inc.
License details
| ULS identifier | 1661268 |
|---|
| Call sign | WNKR970 |
|---|
| Radio service | IG |
|---|
| Status | E |
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| Grant date | 1998-01-07 |
|---|
| Expiration | 2003-01-22 |
|---|
| Cancellation | 2003-04-27 |
|---|
| Frequency range | 461 - 466 MHz (2 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | MN |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:14:01 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 461.00000000 | | | 110.000000 | 65.000000 | |
| 3 | 1 | MO | 461.00000000 | | | 4.000000 | | |
| 3 | 1 | MO | 461.00000000 | | | 40.000000 | | |
| 2 | 1 | FX1 | 466.00000000 | | | 5.000000 | 5.000000 | |
| 3 | 1 | MO | 466.00000000 | | | 4.000000 | | |
| 3 | 1 | MO | 466.00000000 | | | 40.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 461.00000000 | | 20K0F3E |
| 3 | 1 | 461.00000000 | | 20K0F3E |
| 3 | 1 | 461.00000000 | | 20K0F3E |
| 2 | 1 | 466.00000000 | | 20K0F3E |
| 3 | 1 | 466.00000000 | | 20K0F3E |
| 3 | 1 | 466.00000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 10 OBSERVATION RD, DULUTH, ST. LOUIS, MN | 46.78688889, -92.12158333 | 363.000 m | TOWER | 227.000 m structure | N |
| 2 | T | MN | | | | | |
| 3 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 172.000 m | | | | 0.000 | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 205 W 2ND ST STE 140, DULUTH, MN | | 2187221234 |
License history
| Date | File or call sign | Action |
|---|
| 2003-04-27 | WNKR970 | LIEXP |
| 2002-12-10 | WNKR970 | LIAUA |
| 2002-10-28 | WNKR970 | LETRES |
| 2001-08-28 | WNKR970 | AUDOPR |
| 2000-11-23 | WNKR970 | LICCNV |
| 1998-01-07 | WNKR970 | AUTHPR |
| 1998-01-07 | WNKR970 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1661268 | 2026-08-02 01:14:01 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WNKR970 | ULS 1661268 | 2026-08-02 01:14:01 |
| Status | E | ULS 1661268 | 2026-08-02 01:14:01 |
| Service | IG | ULS 1661268 | 2026-08-02 01:14:01 |
| Grant Date | 1998-01-07 | ULS 1661268 | 2026-08-02 01:14:01 |
| Expiration Date | 2003-01-22 | ULS 1661268 | 2026-08-02 01:14:01 |
| Cancellation Date | 2003-04-27 | ULS 1661268 | 2026-08-02 01:14:01 |