JPS57183133A - In-use and stand-by system radio communication equipment - Google Patents

In-use and stand-by system radio communication equipment

Info

Publication number
JPS57183133A
JPS57183133A JP6725281A JP6725281A JPS57183133A JP S57183133 A JPS57183133 A JP S57183133A JP 6725281 A JP6725281 A JP 6725281A JP 6725281 A JP6725281 A JP 6725281A JP S57183133 A JPS57183133 A JP S57183133A
Authority
JP
Japan
Prior art keywords
stand
diode
switching
frequency multiplication
radio communication
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.)
Granted
Application number
JP6725281A
Other languages
Japanese (ja)
Other versions
JPS6242420B2 (en
Inventor
Shogo Minami
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6725281A priority Critical patent/JPS57183133A/en
Publication of JPS57183133A publication Critical patent/JPS57183133A/en
Publication of JPS6242420B2 publication Critical patent/JPS6242420B2/ja
Granted 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0466—Fault detection or indication

Abstract

PURPOSE:To obtain a useful in-use/stand-by switching device by performing in-use/stand-by switching operation by using a diode for frequency multiplication. CONSTITUTION:Frequency multipliers 16 and 17 are each composed of an input matching circuit 18, a diode 19 for frequency multiplication, an output band-pass filter 20, and a bias circuit 21, and their bias voltage values are so set that the outputs of the multipliers are maximized. Said diode 19 for frequency multiplication, on the other hand, is supplied with a switching voltage through an in- use/stand-by changeover switch 26, a by-pass capacitor 24, and a resistance 22. Therefore, if an in-use system has a fault, the diode in the multiplier 16 is turned on to perform switching to a stand-by system.
JP6725281A 1981-05-01 1981-05-01 In-use and stand-by system radio communication equipment Granted JPS57183133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6725281A JPS57183133A (en) 1981-05-01 1981-05-01 In-use and stand-by system radio communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6725281A JPS57183133A (en) 1981-05-01 1981-05-01 In-use and stand-by system radio communication equipment

Publications (2)

Publication Number Publication Date
JPS57183133A true JPS57183133A (en) 1982-11-11
JPS6242420B2 JPS6242420B2 (en) 1987-09-08

Family

ID=13339547

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6725281A Granted JPS57183133A (en) 1981-05-01 1981-05-01 In-use and stand-by system radio communication equipment

Country Status (1)

Country Link
JP (1) JPS57183133A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0354494A (en) * 1989-07-21 1991-03-08 Honda Motor Co Ltd High frequency transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0354494A (en) * 1989-07-21 1991-03-08 Honda Motor Co Ltd High frequency transmitter

Also Published As

Publication number Publication date
JPS6242420B2 (en) 1987-09-08

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