Statements (55)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
transmitter
|
| gptkbp:canBe |
radio interference
|
| gptkbp:composedOf |
transformer
spark gap oscillator |
| gptkbp:developedBy |
gptkb:Nikola_Tesla
|
| gptkbp:employs |
military communication
amateur radio maritime communication |
| gptkbp:firstHeld |
early 20th century
|
| gptkbp:hasCitations |
efficiency
size frequency stability signal purity |
| gptkbp:hasRelatedPatent |
scientific research
historical demonstrations amateur radio experimentation |
| https://www.w3.org/2000/01/rdf-schema#label |
Spark-gap transmitter
|
| gptkbp:influenced |
development of radio transmitters
|
| gptkbp:isAssociatedWith |
early radio experiments
wireless pioneers Tesla_coils |
| gptkbp:isChallengedBy |
solid-state transmitters
|
| gptkbp:isCharacterizedBy |
manual operation
high energy consumption high maintenance needs simple circuitry high output power noisy operation limited frequency range high voltage arcs intermittent operation low modulation capability low reliability |
| gptkbp:isKnownFor |
low cost
simple design high power output |
| gptkbp:isPartOf |
early radio technology
|
| gptkbp:isUsedFor |
high-frequency transmission
shortwave communication spark gap radio transmission sending_Morse_code |
| gptkbp:isUsedIn |
telegraphy
early radio broadcasting early aviation communication |
| gptkbp:isVisitedBy |
atmospheric conditions
antenna size transmission range |
| gptkbp:operates |
high voltage
|
| gptkbp:produces |
radio waves
|
| gptkbp:replacedBy |
vacuum tube transmitter
|
| gptkbp:requires |
high power supply
|
| gptkbp:usedIn |
wireless telegraphy
|
| gptkbp:uses |
spark gap
|
| gptkbp:wasPartOf |
1920s
|