41753169079241_page_40

41753169079241 | page 40 | https://thedailydialectics.com/pdfs/FIOA/41753169079241/41753169079241.pdf

aAs the result of a recent SIPB*tstudy, it was determined that increased emphasis should be placed on the VLF portion of the _spectrum in particular in the band from 3'to 15 kc. Although there , are no military receivers covering this range, -NSA (R/D) has developed an experimental model of such a…