User`s guide

Chapter 3 137
Screen Reference
SPECTRUM MONITOR
3. Screen Reference
o Knob MKR/Cursor: Toggles the function of the CURSOR CONTROL knob
between Cursor
and MKR for marker control.
o Marker Coars/Fine: Toggles the marker control between Coars
for coarse
and Fine
to move the marker with 10 dots (coarse) or 1 dot (fine) resolution.
The marker readouts for the frequency and amplitude are available at any
point of the measured trace.
o More (2 of 3): Displays softkey menu 3.
o Return: Displays the initial screen with function modes.
Softkey Menu 3
o Print: Allows you to print a hardcopy of a graphic image from the screen.
o More (3 of 3): Returns to softkey menu 1.
o Return: Displays the initial screen with function modes.
Explanation
When the Start softkey is pressed, the Test Set tries to synchronize with the bursted
signal by amplitude triggering which uses the rising (low-to-high) amplitude
transition in pulsed carriers as the trigger source. If this synchronization fails, for
example when the signal is a continuous wave, the Test Set is triggered
immediately.
NOTE When you are measuring a bursted signal with the continuous trigger mode and the
waveform disappears suddenly, the Test Set may lose synchronization with the
burst signal. If this happens, press the Abort softkey, and then the Start softkey to
restart the measurement. This resynchronizes the measurement because the Test
Set determines the measurement timing for the burst signal when the Start softkey
is pressed and repeats the measurements with every 8-slot timing.