• DocumentCode
    1707138
  • Title

    Very narrow channel spacing

  • Author

    Webster, P.A.

  • Author_Institution
    Pye Telecommunications Ltd., Cambridge, England, U.K.
  • Volume
    17
  • fYear
    1966
  • Firstpage
    22
  • Lastpage
    25
  • Abstract
    This paper describes the approach that has been made in the U.K. toward narrower channel spacing for VHF mobile radio. Equipment of the type in current use for 25 kc/s channel spacing was modified for field trials with 12½ kc/s channel spacing, and successful field trials were conducted. The same equipment was then supplied to the British Post Office who conducted their own successful field trials and have since announced their decision to make 12½ kc/s spacing compulsory for new schemes after April 1967.
  • Keywords
    Channel spacing; Chirp modulation; Frequency measurement; Frequency modulation; Land mobile radio; Performance loss; Radio transmitters; Receivers; Stability; Testing;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vehicular Technology Conference, 1966. 17th IEEE
  • Type

    conf

  • DOI
    10.1109/VTC.1966.1621854
  • Filename
    1621854
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1707138