Universal Licensing System
KJ4105
ROCK RIVER SERVICE COMPANY
License details
| ULS identifier | 1610971 |
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| Call sign | KJ4105 |
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| Radio service | IG |
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| Status | C |
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| Grant date | 1999-12-02 |
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| Expiration | 2005-01-08 |
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| Cancellation | 2004-10-28 |
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| Frequency range | 469.9 MHz |
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| Locations | 1 |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:17:46 |
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Licensee
| Name | ROCK RIVER SERVICE COMPANY |
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| Applicant type | C |
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| FRN | 0002847663 |
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| Location | ROCKFORD, IL |
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| Address | 2222 CHARLES ST, ROCKFORD, IL, 61104 |
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| Phone | 8152261280 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | MO | 469.90000000 | | | 35.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 469.90000000 | | 16K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | | | 8152261280 |
License history
| Date | File or call sign | Action |
|---|
| 2004-10-29 | KJ4105 | LTSFRN |
| 2004-10-29 | KJ4105 | LICAN |
| 2004-10-18 | KJ4105 | LETRES |
| 2001-10-29 | KJ4105 | AUDOPR |
| 2000-11-22 | KJ4105 | LICCNV |
| 1999-12-02 | KJ4105 | LIREN |
| 1999-12-02 | KJ4105 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1610971 | 2026-08-02 01:17:46 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KJ4105 | ULS 1610971 | 2026-08-02 01:17:46 |
| Status | C | ULS 1610971 | 2026-08-02 01:17:46 |
| Service | IG | ULS 1610971 | 2026-08-02 01:17:46 |
| Grant Date | 1999-12-02 | ULS 1610971 | 2026-08-02 01:17:46 |
| Expiration Date | 2005-01-08 | ULS 1610971 | 2026-08-02 01:17:46 |
| Cancellation Date | 2004-10-28 | ULS 1610971 | 2026-08-02 01:17:46 |