INSTRUMENTATION FOR RECEIVING ELECTROMAGNETIC NOISE BELOW 3000 CPS

• Main Author: LOKKEN,J. E.
• Other Authors: PACIFIC NAVAL LAB ESQUIMALT (BRITISH COLUMBIA)
• Format: Text
• Language: English
• Published: 1964
• Subjects: *RADIO INTERFERENCE; ELECTRONIC RECORDING SYSTEMS; ATMOSPHERICS; EXTREMELY LOW FREQUENCY; ELECTROMAGNETIC RADIATION; NOISE(RADIO); MAGNETOMETERS; RADIO RECEIVERS; GEOPHYSICS; ARCTIC REGIONS; Arctic; Schumann
• Online Access: http://www.dtic.mil/docs/citations/AD0613379; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0613379

The frequency range studied is divided into three bands: the micropulsation band, which extends up to approximately 5 cps and uses quasi-DC receiving systems; the low ELF or Schumann band between approximately 2 cps and the power-line frequency of 50 or 60 cps; and the band which commences at as low...