Special considerations for pulsed signals
You can use pulse search to demodulate pulsed (burst) transmissions. Pulsed
transmissions are generated by on/off carriers such as those used in mobile units.
Pulse search is identical for both video and digital demodulation. To learn how to
use pulse search, see ‘’Special considerations for pulsed signals’’ in the Digital
Demodulation Concepts chapter. For an example using pulse search, see
‘’To set up pulse search’’ in the Using Digital Demodulation chapter.
Note You cannot use pulse search for VSB measurements. The [pulse search on/off] softkey
(under the [
Time] hardkey) is ghosted (inactive) if VSB is selected.
Speed and resolution considerations
Maximizing speed - measurement and display
l
Use fewer points per symbol
l
Use fewer symbols
l
Decrease span
Maximizing resolution
l
Use more points per symbol
l
Increase max time points
++
Video Demodulation Concepts (Opt. AYH)
23 - 16
++ This parameter is under [
System Utility
][
memory usage
][
config meas memory
]. See the online help on this key for more
information on this topic
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