Page.7.
COLOUR BURST level: Testing the colour burst level will determine if the burst signal is
sufficient to trigger the displays colour producing circuit. Burst will diminish in amplitude over
longer cable runs and can get fall below the threshold for the video display to show a colour
image.
For NTSC format, the Chroma standard level is 40 IRE
For PAL format, the Chroma standard level is 280mV
If the Chroma level is too low, the colour will not be as deep, and some details of the image will
get washed out. If the Chroma level is too high, there will be spots on the image. If the coaxial
cable is too long, it will reduce the chroma level
2.3.8 PTZ controller
Displays and allows for analysis of analogue video and controls Pan/tilt/zoom function of PTZ
analogue cameras. For PTZ testing, setup the controlling parameters from the meter to match
those of the camera: e.g. PTZ protocol (PELCO-D, etc.), communication port (RS-485, etc.),
baud rate, PTZ camera ID and pan/tilt speed.
2.3.9 Enhanced Colour bar generator
The tester sends out colour bars via its BNC output to the monitor. This is used to test for a
problem in the cable going from the camera back to the monitoring area
2.3.10 12VDC 2A power output port and 5VDC 2A USB power port
The unit can power a camera with its 12V DC 2A power output. Also included is a built in 5V
DC 2A power output port used to charge USB devices. NOTE: This USB port is for charging
only and has no ability to transfer data.
2.3.11 Audio testing
Test the audio from mic level input devices. Connect the tester and mic level device with the
audio cable. Supports audio recording and output. to monitor and / or record audio.
To Next Page
