System information

S7000 Series TV Analyzer Operation Manual
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3.7 HUM---ANALOG TV
HUM modulation is also named power hum modulation distortion, which caused by low-frequency interference
of the power. Users can set up the hum frequency before measurement (See Section 2:
SETUP->MEASURE->HUM).
The interface of HUM measurement is shown in Figure 3-44.
Figure 3-44
3.7.1 Parameters
 CH, Show the channel number of the current channel.
 FREQ, frequency (5MHz ~1050MHz).
3.7.2 Operation
 HOLD/TRIG Hold or Trig the measurement.
 RETURN Press the key to return to the previous interface.
 Press the key to enter the setup interface of HUM frequency directly.