BS EN 55020:1995:2002 Edition
$198.66
Electromagnetic immunity of broadcast receivers and associated equipment
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 64 |
Limits and test methods for determining the immunity of broadcast receivers and associated equipment to conducted and radiated electromagnetic interference.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 6 | Foreword Foreword to amendment A11 Foreword to amendment A12 Foreword to amendment A13 |
| 7 | Foreword to amendment A14 Contents |
| 9 | 1 Scope 1.1 This standard for immunity requirements applies to television broadcast receivers, sound broa… 1.2 Immunity requirements are given in the frequency range�0 Hz to 400 GHz. Radio-frequency tests… 2 Normative references |
| 10 | 3 Objective 4 Definitions 4.1 Sound receivers are appliances intended for the reception of sound broadcast and similar serv… 4.2 Television receivers are appliances intended for the reception of television broadcast and si… 4.3 Associated equipment is either intended to be connected directly to sound or television recei… |
| 11 | 4.4 Multifunction equipment are appliances in which two or more functions are provided in the sam… 4.5 A disturbance signal is an unwanted signal which may degrade radio reception or cause malfunc… 4.6 Immunity is the ability to maintain a specified performance when the equipment is subjected t… 4.7 Screening effectiveness is the characteristic of a coaxial connector terminal to attenuate th… 4.8 Port: Particular interface of the specified apparatus with the external electromagnetic envir… 4.9 Outdoor unit of Direct To Home satellite receiving systems for individual reception (Type�B�o… |
| 12 | Table 1 Survey (non exhaustive) of receiver and associated equipment types, including the appropriate par… Figure 1 Examples of ports |
| 13 | 5 Description of locations 6 Performance criteria 6.1 Performance criterion A 6.2 Performance criterion B |
| 14 | 6.3 Performance criterion C 7 Conditions during testing 7.1 Measurement procedure for audio assessment |
| 15 | Figure 2 Audio power-output measurement 7.2 Audio power-output measurement |
| 16 | 7.3 Measurement procedure for video assessment 8 Applicability 8.1 For battery powered: 8.2 For: 8.3 For sound broadcast receivers in the long-wave, medium-wave and short-wave operation mode, im… |
| 17 | 8.4 Input immunity requirements apply for the VHF band II part of sound receivers (including car … 8.5 For PC tuner cards immunity requirements for the antenna input connector are applicable accor… 8.6 An IR remote control unit shall be tested together with the main unit.D |
| 18 | Table 3 Limits of input immunity from unwanted signals outside the VHF band II range ( 9 Immunity requirements for the antenna input connector 9.1 Requirements for input immunity to RF voltages (in differential mode) of the VHF band II part… Table 3 Limits of input immunity from unwanted signals inside the VHF band II range ( |
| 19 | 9.2 Requirements for input immunity to RF voltages (in differential mode) of television receivers… |
| 20 | Limits of input immunity of television receivers for systems B, G and I |
| 21 | Figure 3 Limits of input immunity from unwanted signals outside the VHF band II range |
| 22 | Figure 4 Limits of input immunity from unwanted signals inside the VHF band II range Table 6 Limits of input immunity of television receivers for system L |
| 23 | Table 7 Limits of input immunity of television receivers for systems B, G, I and L Table 8 Limits of input immunity of satellite receivers 9.3 Requirements for immunity to RF voltages (in common mode) Limits of immunity to RF voltages (in common mode) of antenna terminals |
| 24 | 9.4 Requirements for screening effectiveness 9.5 Requirements for immunity to electrical fast transients 10 Immunity requirements at loudspeaker and headphone output connector |
| 25 | 11 Immunity requirements for audio input and output connectors (excluding�loudspeaker and headphone) 12 Immunity requirements for a.c. mains power connectors |
| 26 | 13 Immunity requirements for the enclosure port 13.1 Requirements for immunity to ambient electromagnetic fields |
| 28 | Test specification for video tape equipment in the playback mode Test specification for portable video equipment 13.2 Requirements for immunity to RF voltages |
| 29 | Limits of immunity to RF voltages for the different ports of portable ��������video equipment 13.3 Requirements for immunity to electrostatic discharge Limits of immunity to RF voltages of mains, loudspeaker and headphone terminals |
| 30 | 14 Measurement of input immunity 14.1 Measurement of sound receivers 14.2 Measurement of television receivers and video tape equipment |
| 32 | 15 Measurement of immunity to RF voltage (common mode) 15.1 Coupling units |
| 33 | Measuring set-up for input immunity measurement of television receivers and video tape equipment |
| 34 | General principle of the current injection method 15.2 Measurement set-up 15.3 Measurement circuit |
| 35 | 15.4 Measurement procedure 16 Measurement of screening effectiveness 16.1 Measuring set-up for television receivers |
| 36 | Measurement principle for the immunity from conducted currents |
| 37 | 16.2 Measurement procedure for television receivers |
| 38 | Measuring set-up for the screening effectiveness of the antenna terminals of a television receiver 16.3 Measuring set-up for VHF band II receivers 16.4 Measurement procedure for VHF band II receivers |
| 39 | Measuring set-up for the screening effectiveness of the antenna terminals of VHF band II receivers 17 Measurement of electrical transients |
| 40 | 18 Measurement of immunity to induced voltages 18.1 Measuring circuit and set-up 18.2 Measurement procedure |
| 43 | 19 Measurement of immunity from radiated fields 19.1 The open stripline 19.2 Measurement set-up Example of the arrangement of an open stripline TEM device in combination with absorbing plates i… |
| 44 | Measurement principle for the immunity of broadcast receivers from radiated fields in the frequen… |
| 45 | 19.3 Measurement procedure 20 Measurement of electrostatic discharge |
| 46 | 21 Significance of the immunity limits 21.1 The significance of the immunity limits in this standard for type approved equipment shall b… 21.2 Tests shall be made: 21.3 Subsequent tests are necessary from time to time on equipment taken at random from productio… 21.4 Statistical assessment of compliance shall be made as follows. |
| 47 | (normative) Specification of the test-TV-set (normative) Specification of the test-TV-set (normative) Specification of filters and weighting network (normative) Specification of filters and weighting network Low-pass filter�15 kHz Band-pass filter 0,5 kHz to 3 kHz |
| 48 | Weighting network (normative) Specification of coupling units and of low-pass filter (normative) Specification of coupling units and of low-pass filter Construction of the coupling units |
| 49 | Performance checks for coupling units Performance checks for the low-pass filter F |
| 53 | Measuring set-up to check the insertion loss of the coupling units in the frequency range�30 MHz … (normative) Matching networks and mains stop filter (normative) Matching networks and mains stop filter RC network for audio inputs (RC |
| 54 | RC network for audio outputs (RC Mains stop filter (MSF) (normative) EConstruction information for the open stripline and for the mains and loudspeaker ba… (normative) EConstruction information for the open stripline and for the mains and loudspeaker ba… |
| 55 | Open stripline TEM device, basic configuration with matching network and terminating impedance Overview of an open stripline TEM device |
| 56 | Constructional details of an open stripline, TEM device |
| 57 | Supplementary constructional details of the open stripline TEM device Matching network MN |
| 58 | Terminating impedance TI |
| 60 | Band-stop filter type LBS (for loudspeaker connection) |
| 61 | (normative) Calibration of the open stripline (normative) Calibration of the open stripline |
| 62 | Circuit arrangement for calibration of the measuring set-up Example of additional arrangement for enquiry of the calibration curve |
| 63 | Voltage at the measuring-plate depending on the measuring frequency for 10 V e.m.f. voltage level… (normative) Ferrite core sizes and materials (normative) Ferrite core sizes and materials Ferrite core sizes and materials |
