JPS5563105A - Frequency converter for extra-high frequency - Google Patents

Frequency converter for extra-high frequency

Info

Publication number
JPS5563105A
JPS5563105A JP13548478A JP13548478A JPS5563105A JP S5563105 A JPS5563105 A JP S5563105A JP 13548478 A JP13548478 A JP 13548478A JP 13548478 A JP13548478 A JP 13548478A JP S5563105 A JPS5563105 A JP S5563105A
Authority
JP
Japan
Prior art keywords
frequency
converter
oscillation frequency
supplied
discrimanator
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
JP13548478A
Other languages
Japanese (ja)
Inventor
Takashi Otobe
Yasutoshi Komatsu
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP13548478A priority Critical patent/JPS5563105A/en
Publication of JPS5563105A publication Critical patent/JPS5563105A/en
Pending legal-status Critical Current

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Landscapes

  • Superheterodyne Receivers (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE: To stabilize the oscillation frequency of the local oscillator in the frequency converter regardless of the temperature variation with a simple constitution in which just the common transmission line is used.
CONSTITUTION: Parabola antenna 10 installed on the roof, etc. receives the wave of the SHF band sent from the broadcasting satellite. The received wave is supplied to frequency converter 1, converted into the UHF band signal, led indoors through common transmission line 6, receives signal process 31 via transformer 30 after amplification 29, and also supplied to frequency discriminator 7. The oscillation frequency control signal sent from discrimanator 7 is supplied to the gate of transistor 11 through line 6 and furthermore via filter 24 which blocks the passage of the AC current from AC power source 8. Thus the local oscillation frequency of converter 1 is controlled. In this case, discrimanator 7 is provided indoors to secure a high stability for the characteristics to the temperature variation. Accordingly, the local oscillation frequency can be held in a high accuracy and high stability although converter 1 may be installed outdoors.
COPYRIGHT: (C)1980,JPO&Japio
JP13548478A 1978-11-02 1978-11-02 Frequency converter for extra-high frequency Pending JPS5563105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13548478A JPS5563105A (en) 1978-11-02 1978-11-02 Frequency converter for extra-high frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13548478A JPS5563105A (en) 1978-11-02 1978-11-02 Frequency converter for extra-high frequency

Publications (1)

Publication Number Publication Date
JPS5563105A true JPS5563105A (en) 1980-05-13

Family

ID=15152790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13548478A Pending JPS5563105A (en) 1978-11-02 1978-11-02 Frequency converter for extra-high frequency

Country Status (1)

Country Link
JP (1) JPS5563105A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4592093A (en) * 1984-01-13 1986-05-27 Sony Corporation Super high frequency receiver
US4606074A (en) * 1984-06-14 1986-08-12 Winegard Company Automatic voltage line loss compensation control for an antenna receiver
US4608710A (en) * 1982-07-15 1986-08-26 Masprodenkoh Kabushikikaisha Apparatus for receiving satellite broadcasts

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942212A (en) * 1972-05-02 1974-04-20
JPS53110416A (en) * 1977-03-09 1978-09-27 Nec Corp Repeating and transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942212A (en) * 1972-05-02 1974-04-20
JPS53110416A (en) * 1977-03-09 1978-09-27 Nec Corp Repeating and transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608710A (en) * 1982-07-15 1986-08-26 Masprodenkoh Kabushikikaisha Apparatus for receiving satellite broadcasts
US4592093A (en) * 1984-01-13 1986-05-27 Sony Corporation Super high frequency receiver
US4606074A (en) * 1984-06-14 1986-08-12 Winegard Company Automatic voltage line loss compensation control for an antenna receiver

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