Universal Licensing System
KNFX542
CONSTRUCTION SERVICES INC
License details
| ULS identifier | 1852901 |
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| Call sign | KNFX542 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-05-22 |
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| Expiration | 2011-04-11 |
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| Cancellation | 2011-06-11 |
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| Frequency range | 451.6 - 457.5 MHz (7 frequencies) |
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| Locations | 2 |
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| Representative location | BURNS HARBOR, PORTER, IN |
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| Coordinates | 41.6044444, -87.1227778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:18:46 |
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Licensee
| Name | CONSTRUCTION SERVICES INC |
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| Applicant type | C |
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| FRN | 0002894475 |
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| Location | GARY, IN |
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| Address | GARY, IN, 46409 |
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| Phone | 2199808300 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | MO | 451.60000000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 451.65000000 | | | 2.000000 | 2.000000 | |
| 1 | 1 | FB2 | 452.50000000 | | | 75.000000 | 360.000000 | |
| 2 | 1 | MO | 452.50000000 | | | 75.000000 | 75.000000 | |
| 3 | 1 | FB2 | 452.50000000 | | | 75.000000 | 360.000000 | |
| 2 | 1 | MO | 456.52500000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.60000000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 456.65000000 | | | 2.000000 | 2.000000 | |
| 2 | 1 | MO | 457.50000000 | | | 75.000000 | 75.000000 | |
| 4 | 1 | FX1 | 457.50000000 | | | 75.000000 | 150.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 451.60000000 | | 11K2F3E |
| 2 | 1 | 451.65000000 | | 11K2F3E |
| 1 | 1 | 452.50000000 | | 20K0F3E |
| 2 | 1 | 452.50000000 | | 20K0F3E |
| 3 | 1 | 452.50000000 | | 11K2F3E |
| 3 | 1 | 452.50000000 | | 20K0F3E |
| 2 | 1 | 456.52500000 | | 11K2F3E |
| 2 | 1 | 456.60000000 | | 11K2F3E |
| 2 | 1 | 456.65000000 | | 11K2F3E |
| 2 | 1 | 457.50000000 | | 20K0F3E |
| 4 | 1 | 457.50000000 | | 20K0F3E |
| 4 | 1 | 457.50000000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 504 BROADWAY, GARY, LAKE, IN | 41.60280556, -87.33752778 | 183.000 m | | 53.000 m structure / 53.000 m overall | N |
| 2 | T | | | | | | |
| 3 | T | 1175 RAK RD, BURNS HARBOR, PORTER, IN | 41.60444444, -87.12277778 | 195.000 m | TOWER | 89.900 m structure / 89.900 m overall | N |
| 4 | T | PORTER, IN | | | | | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 59.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | | | 88.400 m | | | | 89.400 | |
| 1 | 4 | | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 4490 GRANT ST, GARY, IN | LAKE | 2199808300 |
License history
| Date | File or call sign | Action |
|---|
| 2011-06-11 | KNFX542 | LIEXP |
| 2011-01-17 | KNFX542 | LETRES |
| 2006-10-30 | KNFX542 | LETCNS |
| 2006-02-02 | KNFX542 | LIMOD |
| 2001-09-10 | KNFX542 | AUDOPR |
| 2001-05-22 | KNFX542 | LIREN |
| 2001-01-25 | KNFX542 | LETRES |
| 2000-11-24 | KNFX542 | LICCNV |
| 1996-03-11 | KNFX542 | AUTHPR |
| 1996-03-08 | KNFX542 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1852901 | 2026-08-02 01:18:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNFX542 | ULS 1852901 | 2026-08-02 01:18:46 |
| Status | E | ULS 1852901 | 2026-08-02 01:18:46 |
| Service | IG | ULS 1852901 | 2026-08-02 01:18:46 |
| Grant Date | 2001-05-22 | ULS 1852901 | 2026-08-02 01:18:46 |
| Expiration Date | 2011-04-11 | ULS 1852901 | 2026-08-02 01:18:46 |
| Cancellation Date | 2011-06-11 | ULS 1852901 | 2026-08-02 01:18:46 |