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Extremely low frequency - Wikipedia, the free encyclopedia
One of the difficulties posed when broadcasting in the ELF frequency range is antenna size. This is because the antenna must be at least a substantial fraction of .

Communication with submarines - Wikipedia, the free encyclopedia
A station in Antarctica at 78S 167W noticed when the Soviet Navy put their ZEVS antenna into operation. Due to the technical difficulty of building an ELF .

US NAVY ELF Antenna tests
US NAVY ELF ANTENNA ATTEMPTS WITH SUBMARINE COMMUNICATION. Due to the penetration ability of ELF radiation, the US Navy incorporates it for .

ZEVS, The russian 82 Hz ELF transmitter
To build and operate an ELF-transmitter is neither an easy nor cheap economically and technically task. The antenna system needs a lot of space and the .

Guest Book
7 entries
    What is, thus, the right way to think at an ULF or ELF antenna? Engineers who worked in the early years of radio had clear ideas about low frequency antenna .

    - brandon ellis (lancaster, OH)
  • Performance of the ELF Antenna Water-Flow Tunnel
    A water-flow tunnel for testing submarine-towed ELF antennas has been built. A year's operating experience with it shows that it can rapidly provide valuable test .

    - Raeann Carter (Lancaster, OH)
  • Inquiring Minds - Questions About Physics
    Nov 29, 2000 . Since the total length of the ELF antenna (including the long path through the ground) is so huge, the antenna is able to create electromagnetic .

    - Raeann Carter (Lancaster, OH)
    The submarine detects a Nevada-site ELF signal with a long trailing antenna that stretches for several hundred yards behind and above its deck. In order to .

    - dawn carter (logan, OH)
  • Extremely Low Frequency Transmitter Site Clam Lake, Wisconsin
    Jun 28, 2001 . form part of the electrical antenna to radiate the ELF signal from the . Each ELF antenna works as an independent horizontal electric dipole.

(903) 383-7047 Build an ELF Magnetometer
Q1, Q2, Q3, Q4, Q5: STORMWISE PART # 2N4124 NPN Transistors. ELF Antenna: Select one of our SLF or ELF antennas for best results. C1: 470 pF capacitor.