KN4MFB
Call sign KN4MFB was granted to Carvalho, Rickard J by the Federal Communications Commission (FCC) on May 11, 2018 . The FCC license ID of this call sign is 4044509. More details about call sign KN4MFB can be found in the table below.
| FCC License Id | 4044509 |
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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 | 2018-05-11 |
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| Date When the Authorization Has or Will Expire | 2028-05-11 |
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| Date on Which the Authorization Was Cancelled | |
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| Date This Record Was Last Updated. | 2018-08-27 |
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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) | 0027521699 |
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| License Status Status | Active |
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| High-level License Status | Active |
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| Description of Entity Type | Individual |
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| High-level Entity Type Description | Individual |
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