Universal Licensing System
KRD938
UNDERWRITERS LABORATORIES INC
License details
| ULS identifier | 1637472 |
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| Call sign | KRD938 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 2001-06-15 |
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| Expiration | 2011-08-13 |
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| Cancellation | 2011-10-15 |
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| Frequency range | 469.425 MHz |
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| Locations | 2 |
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| Representative location | NORTHBROOK, COOK, IL |
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| Coordinates | 42.1453056, -87.8472778 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:10:55 |
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Licensee
| Name | UNDERWRITERS LABORATORIES INC |
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| Applicant type | C |
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| FRN | 0005261847 |
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| Location | NORTHBROOK, IL |
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| Address | 333 PFINGSTEN RD, NORTHBROOK, IL, 60062 |
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| Phone | 7082728800 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | FB2 | 464.42500000 | | | 100.000000 | 200.000000 | |
| 2 | 1 | MO | 464.42500000 | | | 40.000000 | | |
| 2 | 1 | MO | 464.42500000 | | | 4.000000 | | |
| 2 | 1 | MO | 469.42500000 | | | 40.000000 | | |
| 2 | 1 | MO | 469.42500000 | | | 4.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 464.42500000 | | 20K0F3E |
| 2 | 1 | 464.42500000 | | 20K0F3E |
| 2 | 1 | 464.42500000 | | 20K0F3E |
| 2 | 1 | 469.42500000 | | 20K0F3E |
| 2 | 1 | 469.42500000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | 333 PFINGSTEN, NORTHBROOK, COOK, IL | 42.14530556, -87.84727778 | 203.000 m | | 16.000 m structure / 16.000 m overall | N |
| 2 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | 18.000 m | | | | | |
| 1 | 2 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 333 PFINGSTEN RD, NORTHBROOK, IL | | 7082728800 |
License history
| Date | File or call sign | Action |
|---|
| 2011-10-15 | KRD938 | LIEXP |
| 2011-05-23 | KRD938 | LETRES |
| 2001-12-04 | KRD938 | AUDOPR |
| 2001-06-15 | KRD938 | LIREN |
| 2001-05-21 | KRD938 | LETRES |
| 2000-11-23 | KRD938 | LICCNV |
| 1996-06-25 | KRD938 | LIREN |
| 1996-06-25 | KRD938 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1637472 | 2026-08-02 01:10:55 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
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| Call Sign | KRD938 | ULS 1637472 | 2026-08-02 01:10:55 |
| Status | E | ULS 1637472 | 2026-08-02 01:10:55 |
| Service | IG | ULS 1637472 | 2026-08-02 01:10:55 |
| Grant Date | 2001-06-15 | ULS 1637472 | 2026-08-02 01:10:55 |
| Expiration Date | 2011-08-13 | ULS 1637472 | 2026-08-02 01:10:55 |
| Cancellation Date | 2011-10-15 | ULS 1637472 | 2026-08-02 01:10:55 |