• Thumbnail for Superheterodyne receiver
    A superheterodyne receiver, often shortened to superhet, is a type of radio receiver that uses frequency mixing to convert a received signal to a fixed...
    53 KB (6,598 words) - 09:27, 30 April 2024
  • Thumbnail for Radio receiver
    Advantages section below describes how the superheterodyne receiver overcomes these problems. The superheterodyne receiver, invented in 1918 by Edwin Armstrong...
    152 KB (16,593 words) - 04:46, 31 July 2024
  • Thumbnail for Shortwave radio receiver
    Wasp" line of regenerative receivers. E.H. Scott Radio Laboratories offered its superheterodyne "World's Record" shortwave receiver kit in the late 1920s,...
    17 KB (1,824 words) - 12:44, 10 April 2023
  • frequency of the intended signal. This is in contrast to the standard superheterodyne receiver where this is accomplished only after an initial conversion to...
    8 KB (1,038 words) - 13:14, 6 December 2023
  • Thumbnail for Tuned radio frequency receiver
    By the mid 1930s, it was replaced by the superheterodyne receiver patented by Edwin Armstrong. The TRF receiver was patented in 1916 by Ernst Alexanderson...
    15 KB (1,580 words) - 14:52, 9 April 2024
  • Thumbnail for Intermediate frequency
    There may be several such stages of intermediate frequency in a superheterodyne receiver; two or three stages are called double (alternatively, dual) or...
    26 KB (3,096 words) - 05:47, 7 July 2024
  • be transferred to the rest of the receiver at the more easily handled intermediate frequency. For most superheterodyne architectures, the RF front end consists...
    4 KB (465 words) - 02:43, 17 August 2023
  • previously been available. The greatly improved selectivity of the superheterodyne receiver overtook the TRF design in almost all applications, however the...
    14 KB (1,878 words) - 14:39, 9 April 2024
  • The principle of the modern superheterodyne (or superhet) receiver (originally named the super-sonic heterodyne receiver, because the intermediate frequency...
    34 KB (4,294 words) - 04:47, 8 July 2024
  • Thumbnail for Heterodyne
    heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers. In 1901, Reginald Fessenden...
    29 KB (3,836 words) - 08:15, 24 July 2024
  • Thumbnail for Antique radio
    manufacturers could afford to build a superheterodyne receiver (superhet). RCA had exclusive rights to the superheterodyne circuit patents and extracted high...
    27 KB (3,833 words) - 11:54, 4 July 2024
  • Thumbnail for Edwin Howard Armstrong
    inventor, who developed FM (frequency modulation) radio and the superheterodyne receiver system. He held 42 patents and received numerous awards, including...
    61 KB (7,721 words) - 20:12, 27 August 2024
  • Radar detector detector (category Radar warning receivers)
    detectors are declared illegal. Radar detectors are built around a superheterodyne receiver, which has a local oscillator that radiates slightly. It is therefore...
    3 KB (358 words) - 19:03, 10 April 2024
  • Thumbnail for Regenerative circuit
    "reflex" receivers) and especially by another Armstrong invention - superheterodyne receivers and is largely considered obsolete.: p.190  Regeneration (now...
    31 KB (3,602 words) - 04:48, 31 July 2024
  • cascode circuit is very useful as a multiplying mixer circuit in superheterodyne receivers. At the lower gate the RF signal is fed to the mixer, and at the...
    22 KB (2,888 words) - 01:29, 21 March 2024
  • high-band quadrant receivers a low-band array plus receiver to provide 360° azimuth low-band coverage a narrowband superheterodyne receiver for signal analysis...
    6 KB (760 words) - 01:51, 4 August 2024
  • Thumbnail for Software-defined radio
    software defined antennas are the enablers of cognitive radio. Superheterodyne receivers use a VFO (variable-frequency oscillator), mixer, and filter to...
    30 KB (3,928 words) - 05:02, 31 July 2024
  • and radio receiver manufacturer. He invented the superheterodyne method of amplifying radio signals, used in almost all AM radio receivers. His patent...
    10 KB (1,212 words) - 15:06, 22 May 2024
  • Thumbnail for Frequency mixer
    or further signal processing. For example, a key component of a superheterodyne receiver is a mixer used to move received signals to a common intermediate...
    10 KB (1,610 words) - 06:14, 30 July 2024
  • Thumbnail for Frequency changer
    signals at one frequency to another frequency, especially in a superheterodyne receiver. See frequency mixer. The circuit usually consists of a local oscillator...
    5 KB (632 words) - 04:00, 1 December 2023
  • superheterodyne receiver, and a detector designed for RF can be combined with an RF amplifier and a low-pass filter into a direct-conversion receiver...
    5 KB (847 words) - 14:26, 9 November 2022
  • developed an alternative to Edwin Armstrong's superheterodyne receiver, the Homodyne or direct-conversion receiver. In the homodyne or synchrodyne system, a...
    52 KB (7,669 words) - 22:06, 11 August 2024
  • sensitive to noise when using a regenerative receiver or a poorly implemented superheterodyne receiver. For a given data rate, the bandwidth of a BPSK...
    3 KB (296 words) - 22:22, 6 July 2024
  • radio receivers was developed by Edwin Armstrong, who patented a regenerative receiver in 1914. At least one console-model broadcast superheterodyne receiver...
    2 KB (303 words) - 17:04, 6 April 2024
  • Thumbnail for Spectrum analyzer
    (FFT) based spectrum analyzers: A swept-tuned analyzer uses a superheterodyne receiver to down-convert a portion of the input signal spectrum to the center...
    30 KB (3,806 words) - 04:08, 15 June 2024
  • Thumbnail for Detector (radio)
    semiconductor diodes, transistors, or integrated circuits. In a superheterodyne receiver the term is also sometimes used to refer to the mixer, the tube...
    16 KB (2,051 words) - 13:27, 16 July 2024
  • dividing ratio". "308MHz/315MHz/418MHz/433.92MHz Low-Power, FSK Superheterodyne Receiver" (PDF). maximintegrated.com. Retrieved 8 April 2024. "Integrated...
    91 KB (714 words) - 17:14, 25 July 2024
  • open-source office software suite Local oscillator in, for example, a superheterodyne receiver Liceum ogólnokształcące, a type of general academic high school...
    3 KB (467 words) - 13:06, 24 August 2024
  • Superheterodyne transmitter is a radio or TV transmitter which uses an intermediate frequency signal in addition to radio frequency signal. There are...
    4 KB (616 words) - 22:43, 6 December 2023
  • Thumbnail for Superette (radio)
    In 1931 RCA introduced a new line of Superette radio receivers. These used the superheterodyne principle but were lower cost than earlier products, in...
    5 KB (621 words) - 08:03, 2 August 2023