Statements (59)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
navigation system
|
| gptkbp:composedOf |
master station
slave stations |
| gptkbp:developedBy |
gptkb:United_States
|
| gptkbp:firstIntroduced |
1940s
|
| gptkbp:hasCitations |
signal degradation
signal interference |
| gptkbp:hasHistoricalSignificance |
gptkb:Cold_War
|
| gptkbp:hasImpactOn |
search and rescue operations
|
| gptkbp:hasVariants |
LORAN-A
LORAN-C LORAN-D |
| https://www.w3.org/2000/01/rdf-schema#label |
LORAN
|
| gptkbp:isAssociatedWith |
signal timing
navigation accuracy ground stations signal propagation frequency modulation transmission towers |
| gptkbp:isAttendedBy |
atmospheric conditions
terrain |
| gptkbp:isBasedOn |
time difference measurement
|
| gptkbp:isConsidered |
obsolete technology
a legacy system a precursor to GPS |
| gptkbp:isLedBy |
gptkb:GPS
|
| gptkbp:isOrganizedBy |
gptkb:U.S._Coast_Guard
|
| gptkbp:isPartOf |
navigation history
aviation safety systems maritime safety systems land navigation systems radio navigation systems |
| gptkbp:isRelatedTo |
signal processing
geolocation technology radio frequency identification time synchronization |
| gptkbp:isSetIn |
some regions
|
| gptkbp:isSubjectTo |
international agreements
regulatory oversight |
| gptkbp:isSupportedBy |
government funding
|
| gptkbp:isUsedBy |
1990s
|
| gptkbp:isUsedFor |
fishing industry
military operations scientific research |
| gptkbp:isUsedIn |
recreational boating
emergency services maritime navigation urban areas developed countries aviation navigation transportation industry land navigation high-density traffic areas |
| gptkbp:operatesIn |
low frequency
|
| gptkbp:provides |
positioning information
|
| gptkbp:providesAccessTo |
10 to 100 meters
|
| gptkbp:replacedBy |
gptkb:GPS
|
| gptkbp:requires |
specialized receivers
|
| gptkbp:uses |
radio signals
|