JPS5566158A - Fm broadcasting device - Google Patents

Fm broadcasting device

Info

Publication number
JPS5566158A
JPS5566158A JP13933078A JP13933078A JPS5566158A JP S5566158 A JPS5566158 A JP S5566158A JP 13933078 A JP13933078 A JP 13933078A JP 13933078 A JP13933078 A JP 13933078A JP S5566158 A JPS5566158 A JP S5566158A
Authority
JP
Japan
Prior art keywords
frequency
supplied
switching regulator
signal
constitution
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.)
Granted
Application number
JP13933078A
Other languages
Japanese (ja)
Other versions
JPS6217422B2 (en
Inventor
Hiroshi Ono
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP13933078A priority Critical patent/JPS5566158A/en
Publication of JPS5566158A publication Critical patent/JPS5566158A/en
Publication of JPS6217422B2 publication Critical patent/JPS6217422B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/44—Arrangements characterised by circuits or components specially adapted for broadcast
    • H04H20/46—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
    • H04H20/47—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems
    • H04H20/48—Arrangements characterised by circuits or components specially adapted for broadcast specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95 specially adapted for stereophonic broadcast systems for FM stereophonic broadcast systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PURPOSE:To improve the S/N by setting the operation frequency of the switching regulator to the 4-fold value of the frequency of the reference signal and thus eliminating or reducing the mixture of the operation frequency of the switching regulator into the transmission signal by holding a high efficiency. CONSTITUTION:The L+R component and the L-R component to be the subchannel are led out with multiplication from stereo modulator 2 which supplies the left (L) and right (R) signals plus the pilot signal and then supplied to the transmission antenna through output terminal 8 after the frequency modulation via frequency modulator 4 and the amplification through power amplifier 6. The operation power is supplied to the stereo of such constitution plus frequency modulators 2 and 4, and at the same time the operation power is supplied to amplifier 6 via switching regulator 12. And the operation frequency of regulator 12 is set to the 4-fold value of the frequency of pilot signal Sp to be defined as the frequency outside the signal band, thus improving the S/N.
JP13933078A 1978-11-14 1978-11-14 Fm broadcasting device Granted JPS5566158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13933078A JPS5566158A (en) 1978-11-14 1978-11-14 Fm broadcasting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13933078A JPS5566158A (en) 1978-11-14 1978-11-14 Fm broadcasting device

Publications (2)

Publication Number Publication Date
JPS5566158A true JPS5566158A (en) 1980-05-19
JPS6217422B2 JPS6217422B2 (en) 1987-04-17

Family

ID=15242795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13933078A Granted JPS5566158A (en) 1978-11-14 1978-11-14 Fm broadcasting device

Country Status (1)

Country Link
JP (1) JPS5566158A (en)

Also Published As

Publication number Publication date
JPS6217422B2 (en) 1987-04-17

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