KN4SJK
Call sign KN4SJK was granted to Madden, John E by the Federal Communications Commission (FCC) on Feb 14, 2019 . The FCC license ID of this call sign is 4123404. More details about call sign KN4SJK can be found in the table below.
| FCC License Id | 4123404 |
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| Radio Service Code | HA |
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| Description of the Radio service | Amateur |
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| Date When the FCC Granted the Authorization | 2019-02-14 |
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| Date When the Authorization Has or Will Expire | 2029-02-14 |
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| Date on Which the Authorization Was Cancelled | 2019-06-04 |
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| Date This Record Was Last Updated. | 2019-06-04 |
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| Service Category | Personal Use |
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| High-level Service Category Description | Personal Use |
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| Licensing Source System | ULS |
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| FCC Registration Number (FRN) | 0028231371 |
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| License Status Status | Canceled |
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| High-level License Status | Cancelled |
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| Description of Entity Type | Individual |
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| High-level Entity Type Description | Individual |
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