JPS56158528A - Afc circuit for am receiver - Google Patents

Afc circuit for am receiver

Info

Publication number
JPS56158528A
JPS56158528A JP6258980A JP6258980A JPS56158528A JP S56158528 A JPS56158528 A JP S56158528A JP 6258980 A JP6258980 A JP 6258980A JP 6258980 A JP6258980 A JP 6258980A JP S56158528 A JPS56158528 A JP S56158528A
Authority
JP
Japan
Prior art keywords
reception section
reception
signal
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
JP6258980A
Other languages
Japanese (ja)
Inventor
Koichi Matsuda
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP6258980A priority Critical patent/JPS56158528A/en
Publication of JPS56158528A publication Critical patent/JPS56158528A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control

Abstract

PURPOSE:To simplify an automatic frequency control AFC circuit of an AM reception section, by introducing the frequency signal of sum or difference of intermediate frequencies IF between an FM reception section and the AM reception section and the IF of the AM reception section to an IF converting means of the FM reception section. CONSTITUTION:An AM signal from an AM reception antenna 12 is converted into an IF signal at a mixer 15, amplified 16 and introduced to the AM side of an FM- AM switch SW3 via a filter 17 and a buffer 19. Further, the local oscillation of the FM reception section fed to a mixer 4 is connected to an oscillator OSC6 via the AM side of a switch SW7. The oscillating frequency of the OSC6 is taken as the frequency of the sum or difference of the IF between the FM and AM reception. The SW3 is connected to the AM side and the local oscillation 14 of the AM reception section is controlled with the AFC signal obtained from an FM detector of the FM reception section. Thus, the AM reception AFC circuit with ease of adjustment can be obtained by a simple circuit.
JP6258980A 1980-05-12 1980-05-12 Afc circuit for am receiver Pending JPS56158528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6258980A JPS56158528A (en) 1980-05-12 1980-05-12 Afc circuit for am receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6258980A JPS56158528A (en) 1980-05-12 1980-05-12 Afc circuit for am receiver

Publications (1)

Publication Number Publication Date
JPS56158528A true JPS56158528A (en) 1981-12-07

Family

ID=13204652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6258980A Pending JPS56158528A (en) 1980-05-12 1980-05-12 Afc circuit for am receiver

Country Status (1)

Country Link
JP (1) JPS56158528A (en)

Similar Documents

Publication Publication Date Title
MX9705554A (en) Wide frequency spectrum television tuner with single local oscillator.
JPS6460115A (en) Rds radio receiver
JPS56158528A (en) Afc circuit for am receiver
SE8103035L (en) RADIORECEIVER
JPS5573144A (en) Channel selection device for radio receiver or the like
JPS5792931A (en) Space diversity receiving device
JPS6432536A (en) Fm receiver
JPS57178435A (en) Fm transmitter and receiver
GB1020227A (en) Improvements in or relating to microwave transmission systems
JPS572135A (en) Radio telephone system
JPS5634241A (en) Receiving unit
JPS5642448A (en) Radio transmission-reception system
JPS56141629A (en) Synthesizer receiver
JPS551772A (en) Receiver for television signal
JPS561630A (en) Broadcast receiver
JPS5625837A (en) Fm radio receiver
JPS57188147A (en) Radio transmitter and receiver
JPS54155701A (en) Reception frequency display unit
JPS55118234A (en) Fm receiver
JPS55143847A (en) Wide band receiving circuit
JPS57115035A (en) Television receiver
JPS5484401A (en) Fm-am receiver with frequency counter
JPS54127613A (en) Transmitter/receiver
JPS56114453A (en) Fm feedback type demodulating circuit
JPS55127724A (en) Superheterodyne receiver