enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Distance measuring equipment - Wikipedia

    en.wikipedia.org/wiki/Distance_measuring_equipment

    Distance measuring equipment. In aviation, distance measuring equipment (DME) is a radio navigation technology that measures the slant range (distance) between an aircraft and a ground station by timing the propagation delay of radio signals in the frequency band between 960 and 1215 megahertz (MHz). Line-of-visibility between the aircraft and ...

  3. Orders of magnitude (frequency) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    25.1 kHz Acoustic – G 10, the highest pitch sung by Georgia Brown, who has a vocal range of 8 octaves. 44.1 kHz: Common audio sampling frequency: 10 5: 100 kHz: 740 kHz: The clock speed of the world's first commercial microprocessor, the Intel 4004 (1971) 10 6: 1 megahertz (MHz) 530 kHz to 1.710 MHz: Electromagnetic – AM radio broadcasts 1 ...

  4. Electrical length - Wikipedia

    en.wikipedia.org/wiki/Electrical_length

    t. e. In electrical engineering, electrical length is a dimensionless parameter equal to the physical length of an electrical conductor such as a cable or wire, divided by the wavelength of alternating current at a given frequency traveling through the conductor. [1][2][3] In other words, it is the length of the conductor measured in wavelengths.

  5. Very high frequency - Wikipedia

    en.wikipedia.org/wiki/Very_high_frequency

    V. VI. v. t. e. Very high frequency (VHF) is the ITU designation [1] for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter. Frequencies immediately below VHF are denoted high frequency (HF), and the next higher frequencies are known as ultra ...

  6. Instructions per second - Wikipedia

    en.wikipedia.org/wiki/Instructions_per_second

    Instructions per second (IPS) is a measure of a computer 's processor speed. For complex instruction set computers (CISCs), different instructions take different amounts of time, so the value measured depends on the instruction mix; even for comparing processors in the same family the IPS measurement can be problematic.

  7. Orders of magnitude (bit rate) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(bit_rate)

    1×10 9 bit/s Networking Gigabit Ethernet: 1.067×10 9 bit/s Computer data interfaces Parallel ATA UDMA 6; conventional PCI 32 bit 33 MHz – 133 MB/s 1.244×10 9 bit/s Networking OC-24, a 1.244 Gbit/s SONET data channel 1.5×10 9 bit/s Computer data interfaces SATA 1.5 Gbit/s – First generation (interface signaling rate) 2.5×10 9 bit/s

  8. Pulse width - Wikipedia

    en.wikipedia.org/wiki/Pulse_width

    The pulse width is a measure of the elapsed time between the leading and trailing edges of a single pulse of energy. The measure is typically used with electrical signals and is widely used in the fields of radar and power supplies. There are two closely related measures. The pulse repetition interval measures the time between the leading edges ...

  9. Ground wave - Wikipedia

    en.wikipedia.org/wiki/Ground_wave

    Ground wave is a mode of radio propagation that consists of currents traveling through the earth. Ground waves propagate parallel to and adjacent to the surface of the Earth, and are capable covering long distances by diffracting around the Earth's curvature. This radiation is also known as the Norton surface wave, or more properly the Norton ...