Universal Licensing System
WPKN431
ALARM DETECTION SYSTEMS, INC.
License details
| ULS identifier | 1785358 |
|---|
| Call sign | WPKN431 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2022-03-01 |
|---|
| Expiration | 2032-05-09 |
|---|
| Frequency range | 460.9375 - 465.9875 MHz (6 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | KANE, IL |
|---|
| Coordinates | 41.7803056, -88.2967500 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:12:56 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 460.93750000 | | | 2.000000 | | |
| 2 | 1 | MO | 460.93750000 | | | 2.000000 | | |
| 1 | 1 | MO | 460.96250000 | | | 2.000000 | | |
| 2 | 1 | MO | 460.96250000 | | | 2.000000 | | |
| 1 | 1 | MO | 460.98750000 | | | 2.000000 | | |
| 2 | 1 | MO | 460.98750000 | | | 2.000000 | 20.000000 | |
| 1 | 1 | MO | 465.93750000 | | | 2.000000 | | |
| 2 | 1 | MO | 465.93750000 | | | 2.000000 | | |
| 1 | 1 | MO | 465.96250000 | | | 2.000000 | | |
| 2 | 1 | MO | 465.96250000 | | | 2.000000 | | |
| 1 | 1 | MO | 465.98750000 | | | 2.000000 | 20.000000 | |
| 2 | 1 | MO | 465.98750000 | | | 2.000000 | 20.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 460.93750000 | | 11K3F1D |
| 1 | 1 | 460.93750000 | | 11K3F2D |
| 2 | 1 | 460.93750000 | | 11K3F2D |
| 2 | 1 | 460.93750000 | | 11K3F1D |
| 1 | 1 | 460.96250000 | | 11K3F2D |
| 1 | 1 | 460.96250000 | | 11K3F1D |
| 2 | 1 | 460.96250000 | | 11K3F2D |
| 2 | 1 | 460.96250000 | | 11K3F1D |
| 1 | 1 | 460.98750000 | | 11K3F2D |
| 1 | 1 | 460.98750000 | | 11K3F1D |
| 2 | 1 | 460.98750000 | | 11K3F1D |
| 2 | 1 | 460.98750000 | | 11K3F2D |
| 1 | 1 | 465.93750000 | | 11K3F1D |
| 1 | 1 | 465.93750000 | | 11K3F2D |
| 2 | 1 | 465.93750000 | | 11K3F1D |
| 2 | 1 | 465.93750000 | | 11K3F2D |
| 1 | 1 | 465.96250000 | | 11K3F1D |
| 1 | 1 | 465.96250000 | | 11K3F2D |
| 2 | 1 | 465.96250000 | | 11K3F2D |
| 2 | 1 | 465.96250000 | | 11K3F1D |
| 1 | 1 | 465.98750000 | | 11K3F2D |
| 1 | 1 | 465.98750000 | | 11K3F1D |
| 2 | 1 | 465.98750000 | | 11K3F1D |
| 2 | 1 | 465.98750000 | | 11K3F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | KANE, IL | 41.78030556, -88.29675000 | | | | |
| 2 | T | KENOSHA, WI | 42.57697222, -87.83702778 | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 1100 CHURCH RD, AURORA, IL | | 6308446300 |
License history
| Date | File or call sign | Action |
|---|
| 2022-03-01 | WPKN431 | LIREN |
| 2012-03-02 | WPKN431 | LIREN |
| 2012-02-28 | WPKN431 | LTSAPR |
| 2012-02-13 | WPKN431 | LETRES |
| 2008-03-31 | WPKN431 | LIMOD |
| 2002-04-26 | WPKN431 | LIREN |
| 2002-02-11 | WPKN431 | LETRES |
| 2001-10-11 | WPKN431 | AUDOPR |
| 2001-02-14 | WPKN431 | COR |
| 2000-11-23 | WPKN431 | LICCNV |
| 2000-09-27 | WPKN431 | LIMOD |
| 2000-09-27 | WPKN431 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1785358 | 2026-08-02 01:12:56 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPKN431 | ULS 1785358 | 2026-08-02 01:12:56 |
| Status | A | ULS 1785358 | 2026-08-02 01:12:56 |
| Service | IG | ULS 1785358 | 2026-08-02 01:12:56 |
| Grant Date | 2022-03-01 | ULS 1785358 | 2026-08-02 01:12:56 |
| Expiration Date | 2032-05-09 | ULS 1785358 | 2026-08-02 01:12:56 |