Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:monument
|
| gptkbp:activity |
transmission of VLF radio signals
|
| gptkbp:frequency |
annual
|
| https://www.w3.org/2000/01/rdf-schema#label |
Alexanderson Day
|
| gptkbp:location |
gptkb:Sweden
|
| gptkbp:namedAfter |
gptkb:Ernst_Alexanderson
|
| gptkbp:observedBy |
gptkb:Grimeton_Radio_Station
|
| gptkbp:purpose |
demonstrate historical radio technology
|
| gptkbp:relatedTo |
gptkb:SAQ_transmitter
radio history |
| gptkbp:bfsParent |
gptkb:Grimeton_Radio_Station
|
| gptkbp:bfsLayer |
6
|