Universal Licensing System
WPWM629
Indiana Harbor Belt Railroad Company
License details
| ULS identifier | 2470013 |
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| Call sign | WPWM629 |
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| Radio service | LN |
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| Status | A |
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| Grant date | 2023-01-12 |
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| Expiration | 2032-12-19 |
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| Frequency range | 911.51 - 918.51 MHz (4 frequencies) |
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| Locations | 1 |
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| Representative location | Riverdale, COOK, IL |
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| Coordinates | 41.6361111, -87.6491667 |
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| Source archive | l_LMcomm.zip |
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| Dataset refreshed | 2026-08-02 00:42:59 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 2 | LR | 911.51000000 | | | 2.000000 | 24.000000 | |
| 4 | 1 | LR | 911.51000000 | | | 2.000000 | 24.000000 | |
| 3 | 1 | LR | 917.01000000 | | | 2.000000 | 24.000000 | |
| 1 | 1 | LR | 918.50000000 | | | 2.000000 | 24.000000 | |
| 2 | 1 | LR | 918.51000000 | | | 2.000000 | 24.000000 | |
| 2 | 2 | LR | 918.51000000 | | | 2.000000 | 24.000000 | |
| 3 | 2 | LR | 918.51000000 | | | 2.000000 | 24.000000 | |
| 4 | 2 | LR | 918.51000000 | | | 2.000000 | 24.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 2 | 911.51000000 | | 20K0N0N |
| 4 | 1 | 911.51000000 | | 20K0N0N |
| 3 | 1 | 917.01000000 | | 20K0N0N |
| 1 | 1 | 918.50000000 | | 20K0N0N |
| 2 | 1 | 918.51000000 | | 20K0N0N |
| 2 | 2 | 918.51000000 | | 20K0N0N |
| 3 | 2 | 918.51000000 | | 20K0N0N |
| 4 | 2 | 918.51000000 | | 20K0N0N |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 500' E of the Intersection of Martha St & Hammond Ave., Calumet City, COOK, IL | 41.63611111, -87.54916667 | 184.000 m | MAST | 2.000 m structure / 2.000 m overall | |
| 2 | T | 250' NW of 140th & Halsted, Riverdale, COOK, IL | 41.63611111, -87.64916667 | 184.000 m | MAST | 2.000 m structure / 2.000 m overall | |
| 3 | T | 1000' N-NW of 140th & Halsted, Riverdale, COOK, IL | 41.72000000, -87.63722222 | 184.000 m | MAST | 2.000 m structure / 2.000 m overall | |
| 4 | T | 150' SW of the Intersection of School St & 140th St, Riverdale, COOK, IL | 41.72000000, -87.63111111 | 184.000 m | MAST | 2.000 m structure / 2.000 m overall | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 2.000 m | H | 9.5000 | 75.0000 | | |
| 1 | 2 | T | | 2.000 m | H | 9.5000 | 75.0000 | | |
| 1 | 3 | T | | 2.000 m | H | 9.5000 | 75.0000 | | |
| 1 | 4 | T | | 2.000 m | H | 9.5000 | 75.0000 | | |
| 2 | 1 | T | | 0.600 m | H | 6.0000 | 60.0000 | | |
| 2 | 2 | T | | 0.600 m | H | 6.0000 | 60.0000 | | |
| 2 | 3 | T | | 0.600 m | H | 6.0000 | 60.0000 | | |
| 2 | 4 | T | | 0.600 m | H | 6.0000 | 60.0000 | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 500' E of the Intersection of Martha St & Hammond Ave, Calumet City, IL | COOK | 2199894933 |
| 2 | 250' NW of 140th & Halsted, Riverdale, IL | COOK | 2199894933 |
| 3 | 1000' N-NE of 140th & Halsted, Riverdale, IL | COOK | 2199894933 |
| 4 | 150' SW of the Intersection of School St & 140th, Riverdale, IL | COOK | 2199894933 |
License history
| Date | File or call sign | Action |
|---|
| 2024-08-16 | WPWM629 | LIAUA |
| 2023-01-12 | WPWM629 | LIREN |
| 2022-09-26 | WPWM629 | LETRES |
| 2013-05-24 | WPWM629 | LIREN |
| 2012-09-24 | WPWM629 | LETRES |
| 2003-09-15 | WPWM629 | LETCNS |
| 2002-12-19 | WPWM629 | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 2470013 | 2026-08-02 00:42:59 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | WPWM629 | ULS 2470013 | 2026-08-02 00:42:59 |
| Status | A | ULS 2470013 | 2026-08-02 00:42:59 |
| Service | LN | ULS 2470013 | 2026-08-02 00:42:59 |
| Grant Date | 2023-01-12 | ULS 2470013 | 2026-08-02 00:42:59 |
| Expiration Date | 2032-12-19 | ULS 2470013 | 2026-08-02 00:42:59 |