[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS6424518A - F1b radio wave transmitter - Google Patents

F1b radio wave transmitter

Info

Publication number
JPS6424518A
JPS6424518A JP62181841A JP18184187A JPS6424518A JP S6424518 A JPS6424518 A JP S6424518A JP 62181841 A JP62181841 A JP 62181841A JP 18184187 A JP18184187 A JP 18184187A JP S6424518 A JPS6424518 A JP S6424518A
Authority
JP
Japan
Prior art keywords
output
communication
warning
power amplifier
radio wave
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
JP62181841A
Other languages
Japanese (ja)
Inventor
Masahiro Wada
Noriyuki Soeda
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP62181841A priority Critical patent/JPS6424518A/en
Publication of JPS6424518A publication Critical patent/JPS6424518A/en
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Transmission In General (AREA)
  • Transmitters (AREA)

Abstract

PURPOSE:To monitor an unnecessary radio wave at the time of no communication of a transmitter at all times by providing a in-no-communication output detecting circuit, detecting the output of a power amplifier part, and outputting a warning when the detected output exceeds a limit level. CONSTITUTION:The in-no-communication output detecting circuit 21 operates its relay 22 with an external input signal which falls to the ground level, for example, when no communication is made, and the output of the power amplifier part 14 is inputted to a limiter 23 through its relay contact 22a; and its output is supplied to an integration circuit 24, a DC amplifier 25, and a detector 26, which are put in operation, thereby generating a warning by the detector 26 when the output electric power of the power amplifier part 14 exceeds limit electric power. Consequently, if an unnecessary wave is radiated owing to an induced noise while no communication is made, the warning is generated and the output can be stopped at need.
JP62181841A 1987-07-20 1987-07-20 F1b radio wave transmitter Pending JPS6424518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181841A JPS6424518A (en) 1987-07-20 1987-07-20 F1b radio wave transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181841A JPS6424518A (en) 1987-07-20 1987-07-20 F1b radio wave transmitter

Publications (1)

Publication Number Publication Date
JPS6424518A true JPS6424518A (en) 1989-01-26

Family

ID=16107749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181841A Pending JPS6424518A (en) 1987-07-20 1987-07-20 F1b radio wave transmitter

Country Status (1)

Country Link
JP (1) JPS6424518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002767A (en) * 1985-05-02 1991-03-26 Laboratories Natura Medica Therapeutic composition containing alpha-linolenic acid and a compound capable of promoting the passage of the acid through the cell membrane, plant extract comprising the acid and the compound, and process for the preparation of the extract

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002767A (en) * 1985-05-02 1991-03-26 Laboratories Natura Medica Therapeutic composition containing alpha-linolenic acid and a compound capable of promoting the passage of the acid through the cell membrane, plant extract comprising the acid and the compound, and process for the preparation of the extract

Similar Documents

Publication Publication Date Title
CA2053778A1 (en) Output level control circuit for use in rf power amplifier
CA2015553A1 (en) Radio transmitter capable of compensating for a frequency characteristic of an antenna and/or a coupling circuit
SE9502802D0 (en) Average RF exposure control
JPS6424518A (en) F1b radio wave transmitter
JPS5739629A (en) Radio equipment
JPS57159131A (en) Power supply system in mobile radio set
JPS57141148A (en) Radio telephone set
JPS5410648A (en) Operation monitor circuit for amplifier
JPS57170640A (en) Receiver having self-diagnosing function
JPS57136825A (en) Super-regenerative receiving system
DE3473952D1 (en) Search device for avalanche victims
JPS56146381A (en) Television voice receiving device
JPS6427323A (en) Transmission equipment
JPS5635219A (en) Monorail type golf cart
JPS54156143A (en) Power source system
JPS5568792A (en) Hearing aid
JPS56126331A (en) Super-regenerative front end of wireless receiver
JPS56155810A (en) Detector
JPS5577241A (en) Community receiving amplifier
JPS57194612A (en) Monitoring circuit for nonbreak amplifying circuit
JPS5440016A (en) Fail soft receiving high frequency amplifier
JPS5776458A (en) Electronic device
JPS56111311A (en) Intermediate-frequency amplifying device with function of limiting input amplitude
JPS6459092A (en) Radar equipment
JPS57107660A (en) Communication system