Reference Cursor And Signal/Noise Ratio; Digital Measuring - emitor COMBOLOOK Color Manual

C. C. C. C. Reference cursor and Signal Reference cursor and Signal Reference cursor and Signal- - - - to to to to- - - - Noise Ratio. Reference cursor and Signal
Color
The COMBOLOOK
Picture-Carrier/Audio-Carrier ratio.
To perform these measurements:
• Put the cursor on any signal carrier and ”zoom in” with the ”Span 13
# 3).
• Push button # 7, reference cursor (ref mrkr
• Tune in the ”right” frequency with the cursor (so it stands on the ”top” of the signal to
measure on).
Push button # 1 (Ref set
Turn the knob and place the cursor on another carrier (signal peak), or on the
floor
.
• The relation between cursor # 1 and cursor # 2 is presented in the lower right hand
corner of the picture-screen.
D. D. D. D. Digital measururing Digital measururing Digital measururing: : : : Digital measururing
The COMBOLOOK COMBOLOOK
COMBOLOOK COMBOLOOK
transponders (such as in digital terrestrial transmissions).
Simply input the start and stop frequencies of the transponder to measure on
( ( ( ( digital transponders are normally 8 MHz wide) digital transponders are normally 8 MHz wide) digital transponders are normally 8 MHz wide) digital transponders are normally 8 MHz wide)
presents the measured and corrected value (in dBuV) in the lower right-hand corner
of the monitor’s screen.
To To To measure a digital transponder’s output signal level To measure a digital transponder’s output signal level: measure a digital transponder’s output signal level measure a digital transponder’s output signal level
• Place the cursor on the digital signal and ”zoom in” with the ”Span 13
(button # 3).
• If needed, increase the displayed bandwidth with the “Span
• Push button # 0, Digital.
is capable of performing measurements of the Signal/Noise/
ref mrkr). ref mrkr ref mrkr
Ref set) and a new cursor appears on top of the earlier.
Ref set Ref set
Color
will also measure the digital output-level (in dB) of digital
Noise Ratio. Noise Ratio. Noise Ratio.
Span 13 ” button (button
Span 13 Span 13
and the COMBOLOOK COMBOLOOK COMBOLOOK COMBOLOOK
Span 13 ” button
Span 13 Span 13
Span”-function. Span Span
22
noise-
Color