456 



Table 546 



WIRELESS TELEGRAPHY 



KILOCYCLE-METER CONVERSION TABLE 



Velocity of propagation, 299820 km/sec. 



The number of kilocycles (kc) is the number of thousands of times the rapidly alternating 

 current in the antenna repeats its direction of flow per sec. The smaller the wave length, the 

 larger the frequency. To obtain approximate kc divide 300000 by the number of m (see 

 next table). For accurate conversion the constant is 299820. The wave length is equal to 

 the velocity divided by the frequency. The velocity of radio waves in space, according to 

 the best available data, is 299820 km/sec. This table and the next are entirely reversible, 

 i.e., 50 kc is 5996 m, and also 50 m is 5996 kc. The range of the table is easily extended by 

 shifting the decimal point in opposite directions for each pair of values — e.g., 2230 kc or m 

 is equivalent to 134.4 m or kc; whence 223 kc or m is equivalent to 1344 m or kc. (Taken 

 from Bur. Standards, Misc. Publ., 67, 1925.) 



Smithsonian Tables 



