JPS55105455A - Transmitter/receiver monitor system - Google Patents

Transmitter/receiver monitor system

Info

Publication number
JPS55105455A
JPS55105455A JP1258179A JP1258179A JPS55105455A JP S55105455 A JPS55105455 A JP S55105455A JP 1258179 A JP1258179 A JP 1258179A JP 1258179 A JP1258179 A JP 1258179A JP S55105455 A JPS55105455 A JP S55105455A
Authority
JP
Japan
Prior art keywords
transmitter
receiver
comparator
output
base station
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
JP1258179A
Other languages
Japanese (ja)
Other versions
JPS6154295B2 (en
Inventor
Hiromi Origasa
Kiyoshi Oota
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 JP1258179A priority Critical patent/JPS55105455A/en
Publication of JPS55105455A publication Critical patent/JPS55105455A/en
Publication of JPS6154295B2 publication Critical patent/JPS6154295B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H04B17/13—Monitoring; Testing of transmitters for calibration of power amplifiers, e.g. gain or non-linearity

Abstract

PURPOSE:To secure the monitor for the transmitter/receiver of the base station from a remote place without installing any special monitor device at the radio base station. CONSTITUTION:Transmitter/receiver of the radio base station is connected to control unit 2 provided at the remote place via four pieces of wires 3-6. With application of transmission control signal SC, transmission oscillator 11 operates and the output level detection signal WTX is applied to comparator 28 via the transmitter comprising modulator 12, multiplier 13, power amplifier 14 and transmission output detector 15 each. On the other hand, oscillation control circuit 19 actuates reception monitor oscillator 20 for a fixed time. And the output signal is applied to receiver consisting of coupling circuit 21, high frequency amplifier 22, mixer 23, local oscillator 24, intermediate frequency amplifier 25, detector 26 and aural amplifier 29 each. Then intermediate frequency level detection signal WRX passed through detection circuit 27 is applied to comparator 28. Control circuit 34 monitors the normalcy of the transmitter and the receiver via the output of comparator 28.
JP1258179A 1979-02-06 1979-02-06 Transmitter/receiver monitor system Granted JPS55105455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1258179A JPS55105455A (en) 1979-02-06 1979-02-06 Transmitter/receiver monitor system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1258179A JPS55105455A (en) 1979-02-06 1979-02-06 Transmitter/receiver monitor system

Publications (2)

Publication Number Publication Date
JPS55105455A true JPS55105455A (en) 1980-08-13
JPS6154295B2 JPS6154295B2 (en) 1986-11-21

Family

ID=11809314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1258179A Granted JPS55105455A (en) 1979-02-06 1979-02-06 Transmitter/receiver monitor system

Country Status (1)

Country Link
JP (1) JPS55105455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288521A (en) * 1989-04-28 1990-11-28 Matsushita Electric Ind Co Ltd Transmitter-receiver
KR100377927B1 (en) * 1999-10-18 2003-03-29 삼성전자주식회사 System and method for remote monitoring of a transmitter in a wireless base station

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323051U (en) * 1976-08-06 1978-02-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5323051U (en) * 1976-08-06 1978-02-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02288521A (en) * 1989-04-28 1990-11-28 Matsushita Electric Ind Co Ltd Transmitter-receiver
KR100377927B1 (en) * 1999-10-18 2003-03-29 삼성전자주식회사 System and method for remote monitoring of a transmitter in a wireless base station

Also Published As

Publication number Publication date
JPS6154295B2 (en) 1986-11-21

Similar Documents

Publication Publication Date Title
EP0246658A3 (en) Transmitter/receiver apparatus
JPS55105455A (en) Transmitter/receiver monitor system
JPS52102626A (en) Tv receiver
JPS55161429A (en) Signal transmitting and receiving system
JPS56106441A (en) Remote monitor controlling device
JPS5642448A (en) Radio transmission-reception system
JPS6439129A (en) Communication equipment facilitating transfer of information between vehicle and stational information spot
JPS57111150A (en) Radio communication system
JPS5534502A (en) Fixed station's transmission device for communication with moving object
JPS5579540A (en) Fsk radio unit
JPS57184345A (en) Transmission controlling system for time-division multidirection multiplex radio communication system
JPS57192144A (en) Transmitter and receiver
JPS5691545A (en) Monitoring system for transmitter and receiver
JPS589394Y2 (en) Receiving machine
JPS5537013A (en) Facsimile device
JPS57174953A (en) Frequency measuring method
JPS54154213A (en) Wireless transmission/reception stereo system
JPS5673936A (en) S/n monitor
JPS5746546A (en) Radio equipment having turning back function
JPS5754434A (en) Status informing device for electric equipment
JPS55126874A (en) Discriminator
JPS5431216A (en) Transmission/reception frequency control system for satellite communication
JPS5575357A (en) Detector for base station designation signal
JPS5531392A (en) Supervisory system of fm radio receiver
JPS5625837A (en) Fm radio receiver