| Callsign | NN3SI |
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| Radio Service | HA - Amateur |
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| License Status | E - Expired |
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| Grant Date | 2003-04-25 |
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| Effective Date | 2004-05-12 |
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| Expire Date | 2013-07-06 |
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| Cancel Date | 2015-07-07 |
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| Last Action Date | 2024-03-13 |
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| End Date | 2013-07-06 |
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| Available Date | 2024-04-13 |
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| Applicant Type | B - Amateur Club |
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| Entity Name | SMITHSONIAN INSTN NAT MUS AMER HSTRY |
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| Street Address / Locality | 17701 Bowie Mill Rd
Derwood, MD 20855 |
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| County | Montgomery County |
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| Zip Location | 39°07'59.5"N 77°08'03.8"W |
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| Maidenhead | FM19kd |
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| FRN | 0008787921 |
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| Licensee ID/SGIN | L00670079 / 000 |
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| Licensee Class | |
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| Callsign Group | B - 2x2 |
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| ULS/Geo Region | 3 / 3 / MD |
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| Prev Callsign / Prev Class | |
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| Next Callsign | |
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| Trustee Callsign / Trustee Name | W3BE JOHNSTON, JOHN B |
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| Vanity Type | |
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| ULS File Number | 0001733857 |
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| Phonetic weight / Morse weight | 13 / 46 |
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