User:Mu301/wireless

Spark-gap




Massie
400 meters, 1 kW






 * Telegraph Stations of the World: 1907





Tests

 * 2182 kHz = 137.4 m
 * 150 mm 6 in
 * 150 mm = 5.9055 in

Symbols

 * = equal
 * ≈ approximately
 * ≠ not equal
 * ≡ identity
 * ≃ asymptotic equality