PATTERN GENERATOR PRACTICE

Objectives 1.1 Getting to know the basic patterns in the Pattern Generator. 1.2 Measuring standard composite video and voltage on each pattern. 1.3 Measuring on the modulator wave modulated video (RF). 1.4 Measuring video IF. Equipment Used 1 Pattern Generator TV signal, LODESTAR CPG-1367A1 1 Oscilloscope 40 MHz and passive probe 1 Power Supply 1 cable connecting the BNC - BNC 75 ohm 1 BNC connector cable - RCA 75 ohm 1 T-BNC Connector Circuit Diagram Theory Source of image patterns (pattern generator) is the technique of video (television) for the purpose of setting up or finding fault. There are various kinds of image patterns with a variety...

Read more »

VIDEO MODULATOR PRACTICE

Objectives :1.       To measure the frequency spectrum in video transmission.2.       To determine the space carrier frequency of picture and carrier frequency of audio.3.       To determine the bandwidth of video transmission.4.       To determine the kind of picture and audio modulation.Instruments:1.       1  Modulator video (VCD/DVD/video sender)2.       1  Spectrum Analyzer3.       1  Connection cable RCA-BNCCircuit...

Read more »

COMPOSITE VIDEO PRACTICE

OBJECTIVES: 1.1 To know the base of composite video1.2 To measure composite video and standart voltage1.3 To determine the parameter of composite video INSTRUMENTATIONS: 1 VCD/VTR1 Oscilloscope 40 MHz and passive probe1 Conector cable RCA - BNC (75 ohm) CIRCUIT DIAGRAM :THEORY :Composite video is the most common type of video interface for sending or receiving an analog video signal to or from a television set. A composite video interface might connect a VHS tape player, DVD player or game console to a televisionComposite video is a yellow, female RCA jack, normally found next to two audio jacks, one red, the other white. The three...

Read more »