JPH01115342U - - Google Patents

Info

Publication number
JPH01115342U
JPH01115342U JP982788U JP982788U JPH01115342U JP H01115342 U JPH01115342 U JP H01115342U JP 982788 U JP982788 U JP 982788U JP 982788 U JP982788 U JP 982788U JP H01115342 U JPH01115342 U JP H01115342U
Authority
JP
Japan
Prior art keywords
frequency
local oscillator
oscillator
added
highly stable
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
JP982788U
Other languages
English (en)
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 filed Critical
Priority to JP982788U priority Critical patent/JPH01115342U/ja
Publication of JPH01115342U publication Critical patent/JPH01115342U/ja
Pending legal-status Critical Current

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  • Superheterodyne Receivers (AREA)

Description

【図面の簡単な説明】
第１図は本考案の局部発振回路を使用した受信
器の構成図である。 １……受信空中線、２……高周波増幅回路、３
……第１混合回路、４……電圧制御発振器（ＶＣ
Ｏ）、５……可変分周器、６，１４……位相比較
回路、７，１６……ローパスフイルタ、８，１２
……帯域フイルタ、９……第２混合回路、１０…
…第２局部発振器、１１，１５……分周器、１３
……第２中間周波増幅回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 高安定周波数の電波を放射する無線機との交信
    を行う無線機のＰＬＬ形ダブルスーパーヘテロダ
    イン方式の受信部において、第２局部発振器１０
    に中間増幅回路の通過帯域内に入る程度の周波数
    安定度を有する基準発振器を用い、該発振器１０
    の出力を分周して第１局部発振器の位相比較器６
    に基準信号として加えると共に、更に他の分周器
    １５を経て位相比較回路１４の一端に加え、又他
    端に第２中間周波信号を入力し、両者の差出力を
    ローパスフイルタ１６を通して前記第２局部発振
    器１０の周波数の微調を行うように構成したこと
    を特徴とする高安定局部発振回路。
JP982788U 1988-01-28 1988-01-28 Pending JPH01115342U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP982788U JPH01115342U (ja) 1988-01-28 1988-01-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP982788U JPH01115342U (ja) 1988-01-28 1988-01-28

Publications (1)

Publication Number Publication Date
JPH01115342U true JPH01115342U (ja) 1989-08-03

Family

ID=31216915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP982788U Pending JPH01115342U (ja) 1988-01-28 1988-01-28

Country Status (1)

Country Link
JP (1) JPH01115342U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006203845A (ja) * 2004-12-22 2006-08-03 Fujitsu Ltd 通信装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290037A (ja) * 1985-10-16 1987-04-24 Hitachi Ltd 受信機

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290037A (ja) * 1985-10-16 1987-04-24 Hitachi Ltd 受信機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006203845A (ja) * 2004-12-22 2006-08-03 Fujitsu Ltd 通信装置

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