JPS5720039A - Lincompex radio receiver - Google Patents

Lincompex radio receiver

Info

Publication number
JPS5720039A
JPS5720039A JP9450580A JP9450580A JPS5720039A JP S5720039 A JPS5720039 A JP S5720039A JP 9450580 A JP9450580 A JP 9450580A JP 9450580 A JP9450580 A JP 9450580A JP S5720039 A JPS5720039 A JP S5720039A
Authority
JP
Japan
Prior art keywords
signal
afc
pilot signal
output
control channel
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
JP9450580A
Other languages
Japanese (ja)
Inventor
Hiroshi Haruki
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 JP9450580A priority Critical patent/JPS5720039A/en
Publication of JPS5720039A publication Critical patent/JPS5720039A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To increase a locking range and to shorten a locking time by exercising AFC on a search basis and by performing rough tracking with a control channel signal higher in level than a pilot signal before precise AFC with the pilot signal. CONSTITUTION:A lincompex radio receiver which extracts a pilot signal contained in a transmitted signal and makes a reception frequency follow up a transmission frequency automatically is provided; when a control channel signal in a received output signal is not acquired by a BPF7, a discriminating circuit 14 outputs a signal 0 and when acquired, a signal 1 is outputted. With those signals, a sweep signal generation control circuit 15 is controlled to apply the output of a sweep signal generator 16 to a control input changeover circuit 17 and the output signal of a phase comparator 11 for AFC operation is searched for by the output of the discriminating circuit 14. Rough tracking is performed with the control channel signal higher in level than the pilot signal and then precise AFC control is exercised with the pilot signal, ths increasing a locking range and shortening a locking time.
JP9450580A 1980-07-09 1980-07-09 Lincompex radio receiver Pending JPS5720039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9450580A JPS5720039A (en) 1980-07-09 1980-07-09 Lincompex radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9450580A JPS5720039A (en) 1980-07-09 1980-07-09 Lincompex radio receiver

Publications (1)

Publication Number Publication Date
JPS5720039A true JPS5720039A (en) 1982-02-02

Family

ID=14112166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9450580A Pending JPS5720039A (en) 1980-07-09 1980-07-09 Lincompex radio receiver

Country Status (1)

Country Link
JP (1) JPS5720039A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523244A (en) * 1975-06-24 1977-01-11 Matsushita Electric Ind Co Ltd Air-conditioning equipment
JPS5421214A (en) * 1977-07-19 1979-02-17 Matsushita Electric Ind Co Ltd Automatic clarifier adjusting system of ssb

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523244A (en) * 1975-06-24 1977-01-11 Matsushita Electric Ind Co Ltd Air-conditioning equipment
JPS5421214A (en) * 1977-07-19 1979-02-17 Matsushita Electric Ind Co Ltd Automatic clarifier adjusting system of ssb

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