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GB684250A - Improvements in or relating to frequency-modulated radio transmitters - Google Patents

Improvements in or relating to frequency-modulated radio transmitters

Info

Publication number
GB684250A
GB684250A GB656150A GB656150A GB684250A GB 684250 A GB684250 A GB 684250A GB 656150 A GB656150 A GB 656150A GB 656150 A GB656150 A GB 656150A GB 684250 A GB684250 A GB 684250A
Authority
GB
United Kingdom
Prior art keywords
frequency
receiver
relating
march
transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB656150A
Inventor
Frederick William Cutts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB656150A priority Critical patent/GB684250A/en
Publication of GB684250A publication Critical patent/GB684250A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
    • H04B14/006—Angle modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)

Abstract

684,250. Frequency modulation. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 16, 1951 [March 16, 1950], No. 6561/50. Class 40 (v). In order to counteract distortion in a frequency-modulation receiver due to non-linearity in the discriminator response, pre-distortion is introduced at the transmitter by applying its modulated output to a local discriminator and feeding back the resulting signal in negative sense to the modulating circuit. The discriminators used at the transmitter and the receiver should have the same frequency characteristics. The system is of particular use in transmitting television signals by a radio link from a primary transmitting station to a receiver at a retransmitting station.
GB656150A 1950-03-16 1950-03-16 Improvements in or relating to frequency-modulated radio transmitters Expired GB684250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB656150A GB684250A (en) 1950-03-16 1950-03-16 Improvements in or relating to frequency-modulated radio transmitters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB656150A GB684250A (en) 1950-03-16 1950-03-16 Improvements in or relating to frequency-modulated radio transmitters

Publications (1)

Publication Number Publication Date
GB684250A true GB684250A (en) 1952-12-17

Family

ID=9816746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB656150A Expired GB684250A (en) 1950-03-16 1950-03-16 Improvements in or relating to frequency-modulated radio transmitters

Country Status (1)

Country Link
GB (1) GB684250A (en)

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