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Page IV-36
720 DSP Operation Manual
Business Services Meter
HUM
The HUM feature provides users with the ability to measure the amplitude of the 50/60
Hz, 100/120 Hz, and low frequency interference present on the video carrier of a single
carrier channel.
Select the
Hum
button from the
Display
pop-up menu to display a bar
graph of the HUM levels of the analog
channel.
The following measurement results
are displayed with a pass/fail status for
each measurement that is included in
the open limit set:
• 60 Hz level value with bar graph
• 120 Hz level value with bar graph
• < 1 kHz (low frequency) level value
with bar graph
Summary of Contents for 720 DSP
Page 23: ...www trilithic com 720 DSP Business Certification Meter Section I The Basics ...
Page 79: ...www trilithic com 720 DSP Business Certification Meter Section II Setup Menu ...
Page 199: ...www trilithic com 720 DSP Business Certification Meter Section III Autotest Menu ...
Page 221: ...www trilithic com 720 DSP Business Certification Meter Section IV Troubleshoot Menu ...
Page 413: ...www trilithic com 720 DSP Business Certification Meter Section V Utility Menu ...
Page 429: ...www trilithic com 720 DSP Business Certification Meter Section VI Appendix ...
Page 440: ...9710 Park Davis Drive Indianapolis IN 46235 317 895 3600 www trilithic com Made in U S A ...