IEC 61079-2:1992

Foreword
Section 1: General
1.1 Scope
1.2 Normative references
1.3 Definitions
     1.3.1 DBS tuner unit
     1.3.2 First intermediate frequency (first i.f.)
Section 2: General notes on measurement
2.1 General conditions
     2.1.1 Introduction
     2.1.2 Test site
     2.1.3 Environmental conditions
     2.1.4 Power supply
     2.1.5 Accuracy of measuring instruments
     2.1.6 Stabilization period
2.2 Video, audio and digital test signals
     2.2.1 Video test signals
     2.2.2 Audio test signals
     2.2.3 Data signal content
2.3 Radio-frequency input signals
     2.3.1 Input signals
     2.3.2 Input signal levels
     2.3.3 Setting of input signal level
2.4 Reference signals
     2.4.1 Reference video signal
     2.4.2 Reference audio signal
2.5 Standard measuring conditions
2.6 Measuring instruments
     2.6.1 Test signal generator
     2.6.2 First i.f. modulator
     2.6.3 C.W. signal generator
     2.6.4 SWR bridge
     2.6.5 Spectrum analyzer
     2.6.6 Directional coupler
     2.6.7 Input coupling network
     2.6.8 Bias network
     2.6.9 Bandpass filter
     2.6.10 Lowpass filter
     2.6.11 Variable bandpass filter
     2.6.12 Video noise meter
     2.6.13 Group delay measuring instrument
     2.6.14 Video monitor
Section 3: Methods of measurement
3.1 Impedance matching at input terminal
     3.1.1 Introduction
     3.1.2 Method of measurement
     3.1.3 Presentation of the results
3.2 Signal-to-noise ratio of video signal (unweighted)
     3.2.1 Introduction
     3.2.2 Method of measurement
     3.2.3 Presentation of results
3.3 Truncation noise
     3.3.1 Introduction
     3.3.2 Method of measurement
     3.3.3 Presentation of results
3.4 Input signal level to output signal level
     characteristics
     3.4.1 Introduction
     3.4.2 Method of measurement
     3.4.3 Presentation of the results
3.5 Co-channel c.w. interference ratio
     3.5.1 Introduction
     3.5.2 Method of measurement
     3.5.3 Presentation of results
3.6 Adjacent channel interference ratio
     3.6.1 Introduction
     3.6.2 Method of measurement
     3.6.3 Presentation of results
3.7 Intermodulation interference ratio
     3.7.1 Introduction
     3.7.2 Method of measurement
     3.7.3 Presentation of results
3.8 Image frequency interference ratio - second i.f.
     3.8.1 Introduction
     3.8.2 Method of measurement
     3.8.3 Presentation of results
3.9 Impairment due to spurious responses
     3.9.1 Introduction
     3.9.2 Method of measurement
     3.9.3 Presentation of results
3.10 Stability of local oscillator frequency
     3.10.1 Introduction
     3.10.2 Method of measurement
     3.10.3 Presentation of results
3.11 AFC characteristics of local oscillator
     3.11.1 Introduction
     3.11.2 Measurement
     3.11.3 Presentation of the results
3.12 Amplitude/frequency response of video channel
     3.12.1 Introduction
     3.12.2 Method of measurement
     3.12.3 Presentation of the results
3.13 Group delay characteristics of video channel
     3.13.1 Introduction
     3.13.2 Method of measurement
     3.13.3 Presentation of results
3.14 Linear waveform response of video channel
     3.14.1 Introduction
     3.14.2 Method of measurement
     3.14.3 Presentation of results
3.15 Line time amplitude linearity of video signal
     3.15.1 Introduction
     3.15.2 Method of measurement
     3.15.3 Presentation of results
3.16 Differential gain and differential phase
     characteristics with respect to the chrominance
     sub-carrier
     3.16.1 Introduction
     3.16.2 Method of measurement
     3.16.3 Presentation of results
3.17 Intermodulation between sound sub-carrier and
     chrominance sub-carrier
     3.17.1 Introduction
     3.17.2 Method of measurement
     3.17.3 Presentation of results
3.18 Suppression of energy dispersal signal
     3.18.1 Introduction
     3.18.2 Method of measurement
     3.18.3 Presentation of results
3.19 Power supply for outdoor unit
     3.19.1 Introduction
     3.19.2 Method of measurement
     3.19.3 Presentation of results
Figures
Annex A (informative) Bibliography

Applies to the tuner unit of a receiver for the direct reception ofsatellite broadcast transmissions in the 12 GHz band. Definesconditions and methods of meausrement to be applied.