BIRD SignalHawk SH-36S-RM-ASL, Operation Manual, Page: 129 / 195

Measurements
115
Time Domain (Zero Span) Measurement
In Time Domain, the amplitude of a single frequency is measured, rather than sweeping a range
of frequencies. The SignalHawk measures and displays the amplitude of the frequency for a
specified period (sweep time) and refreshes during the next sweep. The Time Domain trace
resembles the horizontal line display on an oscilloscope.
Time Domain (Zero Span) Setup
NOTE
The center frequency is being measured.
The Time Domain Measurement can be turned on using the Start Menu or the Measure Menu .
1. Click on the Measure Menu button ( 3 ). See Time Domain Measurement Figure .
2. Click on Time Domain: Menu Button.
3. If measurement is not already on, Click on Time Domain: On/Off option ( 1 ) to turn on
measurement.
NOTE
Underlined option is the active option.
4. Press the Sweep Time option ( 2 ) and set the single sweep time using the mouse scroll
wheel, arrow keys, or keyboard.
NOTE
•
Time range can be set from 1 ms to 100 s.
•
There are a limited number of pixels, so longer sweep times mean less detail in
the display.
•
This enables the Video Trigger in the BW & Sweep menu. To use the Video
Trigger, see video trigger options on the Trigger Source Menu .