USER’S MANUAL. PROMAX-4
Novembre 1999 Page 31
English
APPENDIX E.- CARRIER / NOISE RATIO MEASUREMENT (C/N)
Figure 13.-
Video carrier level
Example
Suppose that the video carrier level in a channel, for instance the 45, is of 20
dBmV, from the diagram we can deduce that the measurement range is of 50 dB.
Thus, if when we carry out the measurement the C/N ratio is 54 dB (A) the
display will show.
On the other hand, if C/N=47 dB (B) we will see on the display.
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