GB/T 4365-2003 Electrical terminology - Electromagnetic compatibility
Some standard content:
GB/T4365—2003
This standard adopts the international standard (IEC60050(161):1990 International Electromagnetic Compatibility ([EV) Chapter 161: Electromagnetic Compatibility\Amendmet117 and Amdmet2, 1908) based on the original C/T5-55 Electromagnetic Compatibility Terminology (IEC60050161):1990), a total of 30 items. This standard has a total of 192 items. According to the consultation results of the Technical Department of the National Radio Interference Standardization Committee and the National Radio Interference Standardization Technical Committee, for IECTC1 formulated 1E60050-713:1998. Non-taxable radio communication: transmission, receiver, network and operation (has been converted into the national standard GB/T2900.54—200 2) In the handling of the 17 terms of IEC60050-151, the definitions of the terms in G/T2900.54-2002 are adopted and marked in the form of notes below the relevant terms of this standard. After the revision of IEC60050-151, this standard will be rectified accordingly. The standard will not be revised according to the requirements of IEC/T1.1-2000. The appendix A and Appendix B of this standard are the appendices for reminders. From the date of implementation, this standard will replace GB/T4365-19954. This standard is proposed by the National Technical Committee for Standardization of Radio Frequency Interference and the National Technical Committee for Standardization of Electrotechnical Terminology. Drafting unit of the standard: Shanghai Scientific Research Institute. Participating organizations of this standard: Wuhan High Voltage Research Institute and Mechanical Science Research Institute of State Power Corporation. The main drafters of this standard are Ji Zeng, Yang Ziyou, Lang Chachuan and Yang Mei. GB/T 4365-2003
LEC Foreword
1) All national committees represent the special interests of all national committees involved. Therefore, formal resolutions or agreements on technical issues made by technical committees shall, as far as possible, express the broadest international opinion on the relevant issues. 2) These resolutions or agreements shall be in the form of recommended publications for international use and, in this sense, shall be accepted by all national committees.
3> In order to promote international uniformity, IEC hopes that all national committees will use the texts of IEC recommended publications as their national standards when domestic conditions permit. This standard is in the following sections: 1 Technical Requirements Committee, by TEC 1 Technical Requirements Committee (Terminology Committee 161 Working Group and IEC 77 Technical Private Transformation - Electrical Equipment (including network expansion) and CISPR International Radio Frequency Special Committee jointly developed,
This standard replaces TFC: 50 (902 publication (1973), it constitutes the International Electrotechnical Standards (IEV) Chapter 16I. This standard text is based on the following documents: June 6
(IEV1S1>) (C)
IcISPK
Installation Quick Notice
23 TF(EV61) (C0)>
360CISPR
Final international standard section coming
1/1E:4/FIS
Final international standard draft
-/1637/FDIS
From February
?(IEV161)(CO)
Sa Report
257(EV161)(C0
5 352: CISPF
Voting report
1/1569A/RVDH
Voting notice
I/1652A/RVD
All information on the voting to approve this standard or the draft can be obtained from the voting report listed in the above table. 0
National Standard of the People's Republic of China
Electrotechnical terminology
Electromagnetic compatibility
Electromagnelic compatibalityGB/T4365—2003
Idt.TEC 60060 (161). 1990
Substitute GB/T4355199
This standard specifies the technical aspects of electromagnetic interference in terms of basic concepts, interference waveforms, interference control stimulus, equipment classification, receivers and transmitters, power control, and supply tree impedance and voltage changes and variations. This standard is applicable to the compilation of various standards and other technical documents related to electromagnetic interference. 2 Electromagnetic interference terminology
2.1 Basic overview
161-01-01 Electromagnetic environment Electromagnetic environment The sum of all electromagnetic phenomena present in a given location. Note that the electromagnetic environment is time-varying and its description may require the use of a design method. 161-01-02 Electromagnetic environment Electromagnetic environment - a time-varying electromagnetic phenomenon that does not transmit information - it may be superimposed or combined with useful signals. 161-01-03 Unwanted signal Unwealed signal Desired signal May damage the reception of useful signal. 161-01-04 Interfering signal Damages the reception of useful signal.
5 Electromagnetic interference Electromagnetic disturbance 161-01-05 Any electromagnetic phenomenon that may cause the performance of a device, equipment or system to degrade or have adverse effects on animals or non-animals. In: Electromagnetic interference may be undesirable, unwanted or changes in the transmission medium itself. 161-1-06 Electromagnetic interference etectrmmagaeteinterrecerEMI The electrical tightness of the equipment and the transmission channel or system is reduced. Note: 1. The "electrical interference" and "electrical interference" are divided into "at the beginning" and "behind". 2. "Electromagnetic interference" and "electrical interference" are normal standards. Electromagnetic compatibility: EMC161-01-07 The equipment and system should not work normally in its electrical environment. The ability of an object to emit unacceptable disturbance in the environment.
161-01-08 [Electromagnetic] emission
(electromaenetle) emission
The emission of electrical energy from a source to the outside:
161-01-09
(radio communication) emission
emissiun (inradiocomtruunisation) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China 2003-01- 17 Approved for implementation on May 1, 2003
GB/I4365-2003
A radio transmitter that generates and transmits radio signals to the outside. 16t-01-10 [Electromagnetic radiation] Energy is transmitted from the source to space in the form of electromagnetic waves. h) Energy is transmitted in space in the form of electromagnetic waves. Note: The meaning of "electromagnetic radiation" can sometimes be extended to include electromagnetic induction. 161-01-11 No electric environment enlromenta) The electromagnetic field generated by all radio transmitters in a given station. 161-01-12 Noise radlo (frequency) The electromagnetic field generated by all radio transmitters in a given station. 161-01-13 Noise radlo (reqoency) Disturbapce The electromagnetic field generated by all radio transmitters in a given station. 161-01-14 Radio frequency interference adia frequency interference, RFT is the degradation of the reception performance of a desired signal caused by radio interference, note
1. 713 1 d5 radio interference (RFE) is the degradation of the reception performance of a desired signal caused by radio frequency interference, namely: 2. low-medium-frequency interference (disturbance) and high-frequency interference (distutbore). The phrase "medio-frequencs interferece" is also used for radio frequency interference or unwanted signals, 3. In order to consider,ITV radio frequency plan defines different types of interference, namely allowable interference, tolerable interference and harmful interference, 161-01-15 inter-system interference is the electromagnetic interference caused by electromagnetic interference generated by other systems to a system, 313-11-07 inter-system interference is the electromagnetic interference caused by the electromagnetic interference generated by other systems to a system, 161-01-16 intra-system interference is the electromagnetic interference caused by the electromagnetic interference in the system. Note: 713-11-b intra-system interference is the electromagnetic interference caused by the electromagnetic interference generated by the system. 161-01-17 is the electromagnetic noise that comes from natural environment rather than artificial mass production. Artificial noise mauraedeolse
161-01-18
Source: 713-11-26 Artificial noise marmednoisc comes from the period of artificial teaching,
161-01-19 (fat reduction degradallom (ofperformance) device, equipment to parent capital work performance and normal belt sample English non-high note: \ sequence low"--inquiry available workers when the loss to permanent loss. 16 1-01-20
(to interference) immunity (tpdiaturbance) The ability of a device, equipment or system to face electromagnetic interference without reducing its operating performance 161-01-21 [electromagnetic inductance (eciromagnetie) saceptbility The ability of a device or system to avoid performance degradation in the presence of electromagnetic interference. Note: high sensitivity and high immunity.
161-01-22 electrostatic discharge electrostatic discharge dlscharge+FSC Charge transfer caused by objects with low electrostatic potential approaching or directly contacting each other. 2
GB/T4365—2003
161-01-23 (bumping) The voltage generated by the emitter of electrostatic discharge (emitterofelectmmagecicdiaturhance), which is equivalent to the electromagnetic disturbance of the power station. Equipment or system. 161-01-24 Inductive device Sugoepibk device The device, equipment or system that may be reduced in performance before being affected by electromagnetic disturbance. 2. 2 Electrostatic disturbance reading
161-02-01 Transient] tramlent (adjective and noun) A physical quantity or phenomenon that changes between two adjacent independent states, and the time of its change is smaller than the time scale of interest. 161-02-02 Pulse palge
A physical quantity that changes suddenly in a short time and then quickly returns to its initial value. 161-02-03 Shock pulse tmpolge
A pulse with a unit pulse or a number of Laxey numbers. 161-02-04 Peak group impulse kpike
A unidirectional group impulse with a short duration.
161-02-05 (pulse) upper limit rlgelpeofapluge) The time it takes for the pulse solution value to rise from a given lower limit value to an initial upper limit value for the first time. Note that unless otherwise specified, the lower limit and upper limit are respectively set to 0% and 161-02-06 Rate of rise nle nt rise
The average rate of change of a quantity over time within a specified range of values, for example, from 10% to 90% of its peak value. borst(ofpluzesoroscillationg)161-02-07
A limited number of clearly distinguishable pulse sequences or pulses of limited duration. 161-02-08 Impulse noise Impaktve nixe Noise that acts on a device as a series of clear pulses or transients. 161-02-09 Impulsive disturbance Impaktve nixe Noise that acts on a device as a series of clear impulses or transients. 161-02-10
continuous noise
electromagnetic disturbance whose effect on a base device cannot be decomposed into a series of audible and discernible effects. 161-02-11
continpoos disturbance
electromagnetic disturbance whose effect on a base device cannot be decomposed into a series of audible and discernible effects. f61-02-12quasi-impulse noisequasi-impulse noise is the sound formed by the addition of pulses and continuous noise. Discontinuous noise161-02-13
electromagnetic interference produced by the interference within a certain period of time separated by intermittent intervals. Random noise
161-02-14
A noise whose instantaneous value cannot be measured,
A click
161-02-15
An electrical disturbance whose duration does not exceed a certain specified value when measured by a specified method. Click rate
161-02-16
A noise whose unit time (usually per minute) exceeds a certain value. 161-03-17
Fundamental component (camponept) The first component of the Fourier series of a periodic quantity 161-02-18 Harmonic component (coponen1) The component of the Fourier effect of a periodic quantity with a degree higher than 1. 161-02-19 Full speed frequency hamonic anber GB/T4365—2003
The ratio of the spectral frequency to the base frequency. Note: The spectral frequency is expressed as hnrmnnir crmler1. 161-02-20 The ratio of the harmonic content to the fundamental frequency. 161-02-21 The harmonic content harmonic content is the product obtained by measuring the fundamental frequency of an alternating current. 161-02-22. The fundamental fact nr The ratio of the root mean square value of the fundamental frequency to the alternating current to which it belongs. E Total harmonic factor (total) harmonic factor 1 61-02-29
The ratio of the root mean square value of the sum of harmonics and the alternating current they fill: Pakating
161-02-24
Used to express the periodic basis with non-average value. Alternating component alternatingcomponent167-02-25
The amount obtained by removing the DC component from the pulsating component. Note: The alternating component is sometimes called ripple content (ippbe: mLant). Effective peak-rlp factor pkeructor161-02-26
The ratio of the peak-to-valley difference of the ripple wave to the total value of the single-current component161-02-27
The ratio of the root mean square factor of the effective wave rmS-rlppletee1orThe ratio of the root mean square of the ripple wave content to the absolute value of the DC component. The effect of the disturbance dscontinmonsdlsiarbenre161-02-28
The effect on a certain device is called: · A series of different effects of electrical disturbance. Note - This definition does not mean that the frequency of the vibration is independent of the effect it produces. In fact, any vibration is related to its effect on the device that causes the vibration. 161-02-29 Damped oscillation is a vibration.
Note: In this case, the damping constant is usually 60% to several times the damping time constant of the vibration. The damping time constant is about one cycle of the vibration. 2.3 Interference control
(time varying) level level (ota time varying quantity) 161-03-01
The value of a quantity measured and calculated in a specified time interval, such as field strength and power, can be expressed in terms of its relative effectiveness at a given location under test. The unit is minutes. 161-03-02 The power supply voltage is transmitted to the assembly via the power supply line. 161-03-03
Power supply immunity nainsnuidty
The power supply decoupling factor 161-03-04
The voltage applied to the power supply at a specified location is compared to the voltage at the specified location of the test equipment.
Case radiation calinetrnklintlon
161-03-05
Radiation generated by the device housing, excluding radiation generated by the connected antenna or cable. Internal immunity Iniernalimmnanity
161-03-06
The ability of a device, equipment or system to operate normally without performance degradation when electromagnetic interference exists at its input line:
CB/T 4365—203
161-3-07 External immunity
Exteraal immunity
The ability of an equipment or system to operate normally without performance degradation when interference is prevented from passing through a path other than the conventional input line or antenna.
Limit of interference tolerance
161-03-08
The permissible level of interference caused by the measurement method specified in the measurement method. 161-03-09
Limit of interference tolerance The permissible performance reduction of the device, equipment or system caused by the interference.Effective radiated power (effective radiated power in a given directive)
The power that must be added to the input terminals of a lossless reference antenna to produce the same excess radiated power flux as a given power flux at a specified distance in a given direction. Note: Where specified, the half-value is indicated. (Charging time constant of detector) 161-04-175
The time required for the voltage at the detector terminals to reach the state value (1-1/e) after a sinusoidal voltage of the design rate is suddenly applied to the detector terminals.
Discharge time constant (of detector) 161-04-18
The time required for the detector output voltage to drop to 1/c of the initial value after the sinusoidal input voltage is suddenly removed. （time constant of indicator）161-04-1
The ratio of the interval between vibrations of the indicator of the measuring instrument to the 2 element, the ratio: the characteristic of the self-reporting medicine is the undamped vibration. 161-04-20
（overload factor of receiver）overloadfactar（nfareceiver）The ratio of the maximum value of the sinusoidal signal recorded to the input value when the indicator is full-scale deflected, corresponding to this maximum input signal. The amplitude/amplitude constant of the circuit before the receiver detector shall not deviate from the linearity by more than 1dB. The detector quasrpeakdelector161-04-21||t t||When a detector with a certain pulse time is applied with a specified complex equal-amplitude pulse, its output voltage is a fraction of the pulse peak value. And this fraction tends to increase with the pulse repetition rate. 161-04-22 Quasi-peak voltmeter qkasipeakvoltmeter The combination of a quasi-peak detector and an indicating meter with a specified pulse repetition time. (quasi-peak voltmeter) Pulse response characteristics (inlquasi-peakmlinseter) 161-04-23
The relationship between the indication value of a quasi-peak voltmeter and the repetition rate of a specified complex equal-amplitude pulse. 161-04-24
Peak value detector
A detector that outputs a voltage equal to the peak value of the applied signal 161-04-25 RMS detector root-mena-squnredelector A detector that outputs a voltage equal to the RMS value of the applied signal. 161-4-26 Average detector averagedetector A detector that outputs a voltage equal to the average value of the applied signal envelope. Note: The average value must be obtained within a specified time period. Simulation Hrtificialband
161-04-27
A simulation of the electrical network between the hand and the human body under normal working conditions GB/T 4365 2003
161-04-28AdiglinmestsiteA site that satisfies the requirements for measuring the electromagnetic field emitted by the device under test under specified conditions. 161-4-29[One quarter of the length] Slop(guarter-wie)llterA movable axially adjustable mechanism of a conductor used to limit the length of the conductor at a given frequency. 161-04-30
Absorbing clampnlsorbinglruop
A device that can be moved along the source of an old device or similar device A measurement device used to obtain the maximum power of a device or device without any power frequency.
Stripline
161-04-31
A transducer with matched terminals consisting of spaced parallel plates, between which electromagnetic waves are transmitted in the transverse electromagnetic mode, thereby generating the electric field used for testing.
TEMcell
161-04-32bZxz.net
A closed system, usually a rectangular coaxial carrier, in which electromagnetic waves are transmitted in the transverse electromagnetic mode, thereby generating the specified electric field used for testing.
3Dummylamp
161-84-33
A device that simulates the power frequency impedance of fluorescent lamps, which can replace fluorescent lamps in lighting devices to measure the insertion loss of lighting devices.
Balanced-unbalanced converter
161-04-34
A device used to convert an unwanted voltage to a balanced voltage or vice versa. 161-04-35Current probecurn:ntprobeA device that allows current to flow through a conductor without disconnecting the conductor and without presenting two impedances to the corresponding circuit. Reference planegraund(referanct) plane161-04-36
A conductive plane whose potential is used as a common reference potentialShielding enclosuresfieldedeaelusure
161-04-37
A mesh or sheet metal body specially designed to isolate the internal and external electromagnetic environments. Activity: Differential current (x=reer.tdrcom) is a type of screen without body, differential current differentinlsoder.urrenl161-04-38
Dual heart electric must be multi-core electric dish in the two hate cable cores of the current difference of half the amplitude. 161-04-39 Common mode curtent in more than one cable core in the terminal, mainly including the shielding winding) each core must be the current in the same value and the sea. 161-04-40 Common impedance commuumolelmpedanct The quotient of the common voltage divided by the common current, immunity test level 161-04-41
When conducting immunity test, it is used to simulate the electromagnetic interference test signal 2.5 Equipment classification
161-05-01 Industrial and medical (qualified equipment) ISM (qualified equipment) Designed according to the requirements of industrial, scientific, and medical use, used to generate protection or monitor the amount of power applied at the frequency of no-load in the upper part. It does not include equipment used in the communication field. Notes: 1. Industrial science and medicine refers to the shortened version of "medical industry". 2. For the purposes of this document, the following technical documents are not included: 161-05-02 Radio frequency heating device radln frequency heating apparatua A medical device that uses radio frequency energy to produce a heating effect. 161-05-03 Industrial and medical equipment section [sMfrequensyband8
Allocation of industrial and medical equipment section,
$B/T4365—2003
161-05-D4 Information technology equipment Infarmatioa lechaology equipmcnt;IT It is used for the following equipment,
1) receiving data from an external source (for example, through a clock or data or a person); 2) performing some processing on the received data (such as calculation, data conversion, recording, archiving, classification, storage and transmission); 3) providing data output (or block diagram of a device or a device that reproduces data and images). Note that this includes units or systems that mainly produce binary or electronic data and perform data processing functions, such as data processing, electronic calculation, data transfer, memory, data separation, storage, frequency and transmission, as well as image data reproduction, etc. 161-05-05 Special equipment professional equipment is equipment used for communication, professional or industrial purposes and is not intended for public use. Characteristics: In some cases, the special equipment must be specified by the manufacturer. 2.6 Receivers and transmitters
spnrioas emissiod (ruf Lratisini1ling slation) 161-06-01 (transmitter) Spurious emissions (radiation of a transmitter) are emissions on a single or multiple frequencies outside the necessary bandwidth. The signal quality can be reduced by half without corresponding signal quality transmission. Spurious emissions include spectral wave emissions, generated emissions, intermodulation products and frequency conversion products. Except for external emissions, 73-S!i-spurious energy emissions) riunetisiofagu.itter) when the assigned signal passes through one or more frequency points outside the assigned channel, its level may be reduced without affecting the corresponding useful transmission. Note: The emission includes the frequency conversion emission, the generation emission, the product of the frequency conversion and the product of the frequency conversion. The out-of-band emission is the emission at a single or multiple frequency points outside the assigned channel caused by the modulation process. Spurious emission is excluded. 13D9.03 Out-of-band emission is the emission caused by the modulation process outside the assigned channel in the immediate vicinity of the assigned channel. It cannot be reduced, otherwise it will affect the corresponding transmission. Signal-tn-disturbanceratio161-06-03
The ratio of the useful signal level to the interference level obtained under certain conditions. Note: In the expression "to ratio", the signal is not used when the signal is used (interference ratio). Signal-to-noise ratio signa-to-noise ratio
161-06-04
The ratio of the useful signal level measured under specified conditions to half of the power compensation level. 161-06-05 Protection ratio prottcoo1atlo The ratio of the amount required for a device or equipment to achieve the specified performance. 713-11-11 Protection ratio Froteet iozption in the transmission of fixed points, a light in the wireless information receiver, in order to obtain a specific amount of signal to interference ratio of the minimum value.
spurious response frequency spurlousresonsefreqaency16-6
in a certain device will produce an undesirable response of the electronic filter frequency Zhuang
1. For a tuning frequency of one, the following formula can be used to predict the spurious response f -(af -f/m
to:.
to measure the scattered response
f—this
j——internal entertainment,
,, for the overall effect.
2.713-10-G to receive the good frequency
SpUUSTeEARt
nseIregceac
The radio frequency receiving machine can provide the fine frequency, which can be used independently, and when there is a color ratio in the receiver, it will cause interference to the distributed signal
161-06-07
GB/T 4365—2003
Note that the possible slight response period is mainly the frequency of the combination of the operating frequency and the frequency of the station, with the frequency of the intermodulation threshold frequency. Spurious response suppression ratio rcjkecLiu rsliu The ratio of the signal level with a regular frequency on the device to the useful signal level with the same output frequency.
Note: 71x-10-h1 Spurious response rejection ratio
SpuricmsTcspnanrr:rt.nmtic
Under the condition of equal output frequency, the ratio of the power of the specific frequency of any spurious response frequency to the power of the signal of the same nature on the measured frequency. 161-06-08
The useless vibration produced by the device. Its frequency requirement is consistent with the working frequency Bandwidth (of device) The bandwidth of a given characteristic of a device or transmission channel when the level of any out-of-band spectral component does not exceed a specified value or ratio of its reference value. Broadbanddisturbance
A bandwidth greater than that of a specific measuring device, receiver or transmitter. Note: In some countries, a specific transmitter may be considered a difficult-to-reach interference device. 161-06-12
broadhanddevice
A device capable of receiving and processing all spectral components of a specific emission. 3 Narruwbanddisturbance161-06-13
A bandwidth less than or equal to that of a specific measuring device, receiver or transmitter. 161-06-14
bandwidth means a device capable of receiving and processing a certain portion of the spectral components of a particular transmission. Selectivity
161-06-15
The ability of a receiver to distinguish a given wanted signal from unwanted signals. A measure of this ability. Note: selectivity to receiver is the ability or capability of a receiver to distinguish a given wanted signal from unwanted signals of varying frequency. The effective selectivity effecttveaelectivlty is the selectivity obtained under specified special conditions - for example when the receiver input circuit is overloaded, 161-06-17
151-06-18
frequency selectivity Mdjacentchannelselectivliy is the selectivity obtained by using a subsequent conduction spacing equal to the channel spacing ±713.17 channel selectivity edjapentehanunelelecjvity the receiver selects for signals with frequencies lower than the spacing. Desensitization desensitization
is used to reduce the useful frequency of a receiver caused by unwanted signals 161-06-19
intermodulation
modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media: S71310 S4 intermodulation intermodulation-modularization is the modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media. 161-06-20 Intermodulation
occurs in non-linear devices, networks or propagation media. As a result, the digital spectral components of one or more input signals interact with each other to produce new components whose frequencies are equal to integer multiples of the frequencies of the input signal components. In the past: Intermodulation can be caused by a single non-linear input signal or by the interaction of two positive or negative signals with the same input frequency.713-10-G to monitor the good frequency
SpUUSTeEARt
nseIregceac
The radio frequency can be received by the machine in detail. It can be used independently, but when there is a difference in the reception ratio between the receiver and the receiver, it will cause interference to the used signal
161-06-07
GB/T 4365—2003
Note that the possible slight impact on the receiving frequency is the main frequency of the new radio and the frequency of the combination of the radio, and the intermodulation frequency. Spurious response suppression ratio rcjkecLiu rsliu The ratio of the signal level with a regular frequency on a device to the useful signal level with the same output.
Note: 71x-10-h1 Spurious response suppression ratio
SpuricmsTcspnanrr:rt.nmtic
Under the condition of equal output power, the power ratio of the power of any specific frequency on the receiving side to the power of other similar signals on the measuring frequency. 161-06-08
The useless oscillation produced by the device. Its frequency requirements are independent of the operating frequency, and are usually unrelated to those frequencies required for the production of the product.
161-D6-09
161-06-10
161-06-11
Bandwidth (ofdevice) The bandwidth of a given characteristic of a device or transmission channel when the value does not exceed a specified value or ratio. Characteristics: A given characteristic may be a characteristic, phase characteristic, or delay frequency characteristic. [Baudwidth (of an amplified signal) The level of any out-of-band spectral component does not exceed a specified percentage of the bandwidth. Broadbanddisturbance
A bandwidth greater than that of a specific measuring device, receiver or transmitter. Note: In some countries, a specific transmitter may be considered a difficult-to-reach interference device. 161-06-12
broadhanddevice
A device capable of receiving and processing all spectral components of a specific emission. 3 Narruwbanddisturbance161-06-13
A bandwidth less than or equal to that of a specific measuring device, receiver or transmitter. 161-06-14
bandwidth means a device capable of receiving and processing a certain portion of the spectral components of a particular transmission. Selectivity
161-06-15
The ability of a receiver to distinguish a given wanted signal from unwanted signals. A measure of this ability. Note: selectivity to receiver is the ability or capability of a receiver to distinguish a given wanted signal from unwanted signals of varying frequency. The effective selectivity effecttveaelectivlty is the selectivity obtained under specified special conditions - for example when the receiver input circuit is overloaded, 161-06-17
151-06-18
frequency selectivity Mdjacentchannelselectivliy is the selectivity obtained by using a subsequent conduction spacing equal to the channel spacing ±713.17 channel selectivity edjapentehanunelelecjvity the receiver selects for signals with frequencies lower than the spacing. Desensitization desensitization
is used to reduce the useful frequency of a receiver caused by unwanted signals 161-06-19
intermodulation
modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media: S71310 S4 intermodulation intermodulation-modularization is the modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media. 161-06-20 Intermodulation
occurs in non-linear devices, networks or propagation media. As a result, the digital spectral components of one or more input signals interact with each other to produce new components whose frequencies are equal to integer multiples of the frequencies of the input signal components. In the past: Intermodulation can be caused by a single non-linear input signal or by the interaction of two positive or negative signals with the same input frequency.713-10-G to monitor the good frequency
SpUUSTeEARt
nseIregceac
The radio frequency can be received by the machine in detail. It can be used independently, but when there is a difference in the reception ratio between the receiver and the receiver, it will cause interference to the used signal
161-06-07
GB/T 4365—2003
Note that the possible slight impact on the receiving frequency is the main frequency of the new radio and the frequency of the combination of the radio, and the intermodulation frequency. Spurious response suppression ratio rcjkecLiu rsliu The ratio of the signal level with a regular frequency on a device to the useful signal level with the same output.
Note: 71x-10-h1 Spurious response suppression ratio
SpuricmsTcspnanrr:rt.nmtic
Under the condition of equal output power, the power ratio of the power of any specific frequency on the receiving side to the power of other similar signals on the measuring frequency. 161-06-08
The useless oscillation produced by the device. Its frequency requirements are independent of the operating frequency, and are usually unrelated to those frequencies required for the production of the product.
161-D6-09
161-06-10
161-06-11
Bandwidth (ofdevice) The bandwidth of a given characteristic of a device or transmission channel when the value does not exceed a specified value or ratio. Characteristics: A given characteristic may be a characteristic, phase characteristic, or delay frequency characteristic. [Baudwidth (of an amplified signal) The level of any out-of-band spectral component does not exceed a specified percentage of the bandwidth. Broadbanddisturbance
A bandwidth greater than that of a specific measuring device, receiver or transmitter. Note: In some countries, a specific transmitter may be considered a difficult-to-reach interference device. 161-06-12
broadhanddevice
A device capable of receiving and processing all spectral components of a specific emission. 3 Narruwbanddisturbance161-06-13
A bandwidth less than or equal to that of a specific measuring device, receiver or transmitter. 161-06-14
bandwidth means a device capable of receiving and processing a certain portion of the spectral components of a particular transmission. Selectivity
161-06-15
The ability of a receiver to distinguish a given wanted signal from unwanted signals. A measure of this ability. Note: selectivity to receiver is the ability or capability of a receiver to distinguish a given wanted signal from unwanted signals of varying frequency. The effective selectivity effecttveaelectivlty is the selectivity obtained under specified special conditions - for example when the receiver input circuit is overloaded, 161-06-17
151-06-18
frequency selectivity Mdjacentchannelselectivliy is the selectivity obtained by using a subsequent conduction spacing equal to the channel spacing ±713.17 channel selectivity edjapentehanunelelecjvity the receiver selects for signals with frequencies lower than the spacing. Desensitization desensitization
is used to reduce the useful frequency of a receiver caused by unwanted signals 161-06-19
intermodulation
modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media: S71310 S4 intermodulation intermodulation-modularization is the modulation of unwanted signals on useful signals caused by the interaction of signals in non-linear devices, networks or propagation media. 161-06-20 Intermodulation
occurs in non-linear devices, networks or propagation media. As a result, the digital spectral components of one or more input signals interact with each other to produce new components whose frequencies are equal to integer multiples of the frequencies of the input signal components. In the past: Intermodulation can be caused by a single non-linear input signal or by the interaction of two positive or negative signals with the same input frequency.17 Channel selectivity is the selection of signals by a receiver with a frequency that is too low to be spaced. Desensitization is used to reduce the amount of unwanted signals that are caused by unwanted signals. 161-06-19 Tragymoduiation is the modulation of unwanted signals on wanted signals by the interaction of signals in nonlinear devices, networks or propagation media: 71310 S4 Intermodulation is the modulation of unwanted signals on wanted signals by the interaction of signals in nonlinear devices. 161-06-20 Intermodulation occurs in nonlinear devices and propagation media. The interaction of one or more input signal spectral components produces new components whose frequencies are equal to the integral multiple of the frequency of each input signal component. The modulation can be caused by a single non-random input signal or by a number of positive or negative signals acting at the same time.17 Channel selectivity is the selection of signals by a receiver with a frequency that is too low to be spaced. Desensitization is used to reduce the amount of unwanted signals that are caused by unwanted signals. 161-06-19 Tragymoduiation is the modulation of unwanted signals on wanted signals by the interaction of signals in nonlinear devices, networks or propagation media: 71310 S4 Intermodulation is the modulation of unwanted signals on wanted signals by the interaction of signals in nonlinear devices. 161-06-20 Intermodulation occurs in nonlinear devices and propagation media. The interaction of one or more input signal spectral components produces new components whose frequencies are equal to the integral multiple of the frequency of each input signal component. The modulation can be caused by a single non-random input signal or by a number of positive or negative signals acting at the same time.
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