JPS5625837A - Fm radio receiver - Google Patents

Fm radio receiver

Info

Publication number
JPS5625837A
JPS5625837A JP10242779A JP10242779A JPS5625837A JP S5625837 A JPS5625837 A JP S5625837A JP 10242779 A JP10242779 A JP 10242779A JP 10242779 A JP10242779 A JP 10242779A JP S5625837 A JPS5625837 A JP S5625837A
Authority
JP
Japan
Prior art keywords
output
frequency
fed
intermediate frequency
afc circuit
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.)
Pending
Application number
JP10242779A
Other languages
Japanese (ja)
Inventor
Yasuhiro Hirano
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10242779A priority Critical patent/JPS5625837A/en
Publication of JPS5625837A publication Critical patent/JPS5625837A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/14—Automatic detuning arrangements

Abstract

PURPOSE:To enable to confirm the reception point accurately, by monitoring beat tone between the output of AFC circuit to obtain the center of the intermediate frequency and the output of the fixed oscillator. CONSTITUTION:The FM electromagnetic waves received are fed to the frequency converter 15 and converted into the intermediate frequency. When the switch SW is turned on to the position B, the output of the frequency converter 15 is fed to the AFC circuit 25 to obtain the output of a single frequency at the center frequency of FM modulation, and it is fed to the mixer 26 and at the same time, the intermediate frequency at nonmodulation and the output of the fixed oscillator 27 of the same frequency are added. The output of the mixer 26 is fed to the speaker, the beat tone between the output frequency of the AFC circuit 25 and the output frequency of the fixed oscillator 27 is monitored, the local oscillator 16 is changed so that zero beat is obtained, and after that, the switch SW is turned on to the position A, and the intermediate frequency signal is fed to the FM detector 19 via the intermediate frequency filter 17 and the intermediate frequency amplifier 18.
JP10242779A 1979-08-10 1979-08-10 Fm radio receiver Pending JPS5625837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10242779A JPS5625837A (en) 1979-08-10 1979-08-10 Fm radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10242779A JPS5625837A (en) 1979-08-10 1979-08-10 Fm radio receiver

Publications (1)

Publication Number Publication Date
JPS5625837A true JPS5625837A (en) 1981-03-12

Family

ID=14327151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10242779A Pending JPS5625837A (en) 1979-08-10 1979-08-10 Fm radio receiver

Country Status (1)

Country Link
JP (1) JPS5625837A (en)

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