JPS6434031A - Wave interference testing device - Google Patents

Wave interference testing device

Info

Publication number
JPS6434031A
JPS6434031A JP62190625A JP19062587A JPS6434031A JP S6434031 A JPS6434031 A JP S6434031A JP 62190625 A JP62190625 A JP 62190625A JP 19062587 A JP19062587 A JP 19062587A JP S6434031 A JPS6434031 A JP S6434031A
Authority
JP
Japan
Prior art keywords
frequency
signal
communication
wave
disturbance
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
JP62190625A
Other languages
Japanese (ja)
Inventor
Masamichi Yonekura
Takanao Suzuki
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
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 filed Critical NEC Corp
Priority to JP62190625A priority Critical patent/JPS6434031A/en
Publication of JPS6434031A publication Critical patent/JPS6434031A/en
Pending legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To evaluate disturbance for a signal with high redundancy, by generating a disturbance signal swept by an audible frequency for a real communication wave, and performing a test by the real communication wave by synthesizing a communication wave and a disturbance wave. CONSTITUTION:A communication frequency storage device 1 is a storage device to set and store a communication frequency in advance, and a variable frequency oscillator 2 oscillates disturbance signal centering a stored value. Meanwhile, a sweep signal generator 3 generates the signal of the audible frequency, for example, of 1kHz, and sweeps the output frequency of the variable frequency oscillator 2 within the receiving band area of a receiver to be measured centering the preset value of the communication frequency storage device. After the sweep frequency signal is outputted after being adjusted to an appropriate power by an attenuator 4. In such a way, it is possible to perform a wave interference test suitable for a real communication scene.
JP62190625A 1987-07-30 1987-07-30 Wave interference testing device Pending JPS6434031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190625A JPS6434031A (en) 1987-07-30 1987-07-30 Wave interference testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190625A JPS6434031A (en) 1987-07-30 1987-07-30 Wave interference testing device

Publications (1)

Publication Number Publication Date
JPS6434031A true JPS6434031A (en) 1989-02-03

Family

ID=16261182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190625A Pending JPS6434031A (en) 1987-07-30 1987-07-30 Wave interference testing device

Country Status (1)

Country Link
JP (1) JPS6434031A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123327A (en) * 1982-12-28 1984-07-17 Nippon Telegr & Teleph Corp <Ntt> System for detecting radio interference

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123327A (en) * 1982-12-28 1984-07-17 Nippon Telegr & Teleph Corp <Ntt> System for detecting radio interference

Similar Documents

Publication Publication Date Title
DE2961024D1 (en) Microwave moisture measurement device with commutable measuring range
SE7709041L (en) PROCEDURE AND DEVICE FOR DETERMINING THE CONDITION OF THE MOVEMENT OF A SUBSTANCE WITH MOVEMENT
JPS52138197A (en) Observing apparatus for rapid change in reflection or transmission energy by wood in radio frequency range
JPS6434031A (en) Wave interference testing device
EP0207860A3 (en) Method and device for the rapid reflectometric testing of passive components in the vhf range
JPS54152886A (en) Transponder checking device
JPS5228371A (en) Acoustic wave searching system
JPS54106185A (en) Radar test signal generator
SU549689A1 (en) Ultrasound Testing Device
GB1115129A (en) Device for measuring high frequency constants of materials
JPS53145669A (en) Azimuth signal processing system
JPS5295995A (en) Testing for alarm device of micro wave
JPS533111A (en) Sweep signal generator using modulated wave
Bassim et al. Pulse length and frequency spectrum of real and simulated acoustic emission signals
JPS6472044A (en) Magnetic resonance device and its probe impedance adjusting method
SU1699273A1 (en) Geoelectric prospecting device
SU993148A1 (en) Phase fluctuation characteristic digital meter
IT8009415A0 (en) EQUIPMENT WITH LASER GENERATOR WITH MIXED AMPLITUDE AND FREQUENCY MODULATION FOR REMOTE SCARTOMETRY MEASUREMENTS, USABLE FOR DIRECTOR BEAM GUIDANCE OF FURNITURE IN SPACE
JPS5618738A (en) Measuring method for optical fiber cable
JPS5534517A (en) Noise generator
JPS5287074A (en) Mismatching attenuation measuring apparatus
FR2301965A1 (en) Athermapeutic ultra short wave equipment - designed to treat living tissue without heat generation (NL260876)
JPS5219938A (en) Sawtooth wave oscillation circuit
JPS5544295A (en) Test signal generator and method of testing same
JPS54129962A (en) False pulse generator