JPS5657341A - Antenna reception system - Google Patents

Antenna reception system

Info

Publication number
JPS5657341A
JPS5657341A JP13452779A JP13452779A JPS5657341A JP S5657341 A JPS5657341 A JP S5657341A JP 13452779 A JP13452779 A JP 13452779A JP 13452779 A JP13452779 A JP 13452779A JP S5657341 A JPS5657341 A JP S5657341A
Authority
JP
Japan
Prior art keywords
cable
frequency
loss
circuit
amplifier
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
JP13452779A
Other languages
Japanese (ja)
Inventor
Shintaro Gomi
Katsuaki Kawamura
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 JP13452779A priority Critical patent/JPS5657341A/en
Publication of JPS5657341A publication Critical patent/JPS5657341A/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
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To improve the noise exponent and then increase the dynamic range, by securing the direct mixer system with installation of a high-frequency amplifier at the side of the reception antenna and thus reducing the effect of the cable loss. CONSTITUTION:The high-frequency amplifier 40 is connected to the reception antenna 401 via the matching/reactance NOT circuit 402, and the input passed through the antenna cable 409 is supplied directly to the mixer circuit 404. Thus the direct mixer system is formed. The oscillation frequency of the local oscillator 408 is applied to the circuit 404 to produce the intermediate-frequency signal after a frequency conversion, and the reception signal is produced from the speaker 407 via intermediate-frequency amplifier 405 and the wave detector 406. Owing to the direct mixer system, the loss of the cable 409 is defined as the quotient of the amplifier 403. Thus the loss of the cable 409 is reduced to improve the noise exponent. As a result, the excellent dynamic range can be secured.
JP13452779A 1979-10-17 1979-10-17 Antenna reception system Pending JPS5657341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13452779A JPS5657341A (en) 1979-10-17 1979-10-17 Antenna reception system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13452779A JPS5657341A (en) 1979-10-17 1979-10-17 Antenna reception system

Publications (1)

Publication Number Publication Date
JPS5657341A true JPS5657341A (en) 1981-05-19

Family

ID=15130396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13452779A Pending JPS5657341A (en) 1979-10-17 1979-10-17 Antenna reception system

Country Status (1)

Country Link
JP (1) JPS5657341A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151127A (en) * 1982-03-04 1983-09-08 Nippon Denso Co Ltd Car radio receiver
KR960003142A (en) * 1994-06-27 1996-01-26 김광호 Wireless interface circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151127A (en) * 1982-03-04 1983-09-08 Nippon Denso Co Ltd Car radio receiver
JPH0331020B2 (en) * 1982-03-04 1991-05-02 Nippon Denso Co
KR960003142A (en) * 1994-06-27 1996-01-26 김광호 Wireless interface circuit

Similar Documents

Publication Publication Date Title
JPS5657341A (en) Antenna reception system
JPS5627507A (en) Loop antenna unit
JPS5550175A (en) Received signal processor
JPS5642437A (en) Radio receiver
JPS56103514A (en) Filter circuit
JPS56132828A (en) Space diversity receiving device
JPS5484413A (en) Heterodyne repeating system
JPS551772A (en) Receiver for television signal
JPS5547740A (en) Fm receiver
FR2441292A1 (en) Short to long wave converter for radio receiver - has separate mixer and local oscillator for long waves and selected signal fed to amplifier
JPS54127612A (en) Receiving device
JPS5673936A (en) S/n monitor
ES486852A1 (en) Self-oscillating converter for ultrashort wave radio receivers
JPS57200870A (en) Phase difference detector
JPS5555628A (en) Squelch system in fm receiver
JPS5631234A (en) Beat interference eliminating unit
JPS54132111A (en) Super-heterodyne receiver
JPS5511630A (en) Radio receiver
JPS57125536A (en) Synthesized diversity receiver
GB1390561A (en) Radio receiving system
JPS56109046A (en) Tuner device
JPS5625834A (en) Fm receiver
JPS559273A (en) Receiver for radio control unit
JPS5535501A (en) Transmission frequency convertor
JPS57147337A (en) Intermediate frequency phase synthesizer