Universal Licensing System
WHJ439
AlarmNet Inc
License details
| ULS identifier | 982578 |
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| Call sign | WHJ439 |
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| Radio service | MG |
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| Status | C |
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| Grant date | 2011-07-08 |
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| Expiration | 2021-09-05 |
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| Cancellation | 2015-10-16 |
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| Frequency range | 928.0375 - 952.2375 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | CHICAGO, COOK, IL |
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| Coordinates | 41.8772500, -87.6255833 |
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| Source archive | l_micro.zip |
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| Dataset refreshed | 2026-08-02 02:46:56 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FXO | 928.03750000 | | | | | |
| 1 | 1 | FXO | 928.23750000 | | | | | |
| 1 | 3 | FXO | 952.03750000 | | | | | |
| 1 | 3 | FXO | 952.23750000 | | | | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 928.03750000 | | 15K0F2D |
| 1 | 1 | 928.23750000 | | 15K0F2D |
| 1 | 3 | 952.03750000 | | 25K0F2D |
| 1 | 3 | 952.23750000 | | 25K0F2D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | CNA BLDG. 333 S. WABASH, CHICAGO, COOK, IL | 41.87725000, -87.62558333 | 182.000 m | | 189.600 m structure / 189.600 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | V | | 360.0000 | | |
| 2 | 1 | R | | | | 10.0000 | | | |
| 3 | 1 | T | | | V | 10.0000 | 360.0000 | | |
| 4 | 1 | R | | | | | | | |
License history
| Date | File or call sign | Action |
|---|
| 2015-10-16 | WHJ439 | LICAN |
| 2011-07-08 | WHJ439 | LIREN |
| 2011-07-07 | WHJ439 | ESCAPR |
| 2011-06-13 | WHJ439 | LETRES |
| 2003-03-31 | WHJ439 | LITRAN |
| 2001-12-31 | WHJ439 | LIASS |
| 2001-08-23 | WHJ439 | LIREN |
| 2001-06-11 | WHJ439 | LETRES |
| 2000-02-04 | WHJ439 | LITRAN |
| 1999-08-13 | WHJ439 | LICCNV |
| 1998-12-21 | WHJ439 | COR |
| 1998-08-21 | WHJ439 | COR |
| 1996-06-12 | WHJ439 | LIREN |
| 1991-09-05 | WHJ439 | LIMOD |
| 1991-07-30 | WHJ439 | LIMOD |
| 1986-08-08 | WHJ439 | LIMOD |
| 1983-08-23 | WHJ439 | LIMOD |
| 1983-07-22 | WHJ439 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 982578 | 2026-08-02 02:46:56 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WHJ439 | ULS 982578 | 2026-08-02 02:46:56 |
| Status | C | ULS 982578 | 2026-08-02 02:46:56 |
| Service | MG | ULS 982578 | 2026-08-02 02:46:56 |
| Grant Date | 2011-07-08 | ULS 982578 | 2026-08-02 02:46:56 |
| Expiration Date | 2021-09-05 | ULS 982578 | 2026-08-02 02:46:56 |
| Cancellation Date | 2015-10-16 | ULS 982578 | 2026-08-02 02:46:56 |