To alter the value of the reference level select the Spectrum Analyser mode
functions menu, turn the rotary selector [4] to select the Reference level function and
press it. The screen will show a window with the values which can be selected. Turn the
rotary selector [4] to the desired reference level and activate it by pressing the selector
again.
4.10.1.4 Dynamic Range
It allows to zoom in or to zoom out the visualization vertical scale by means of
selecting the following values for the screen divisions: 2, 5 and 10 dB/div
4.10.1.5 Dual Marker/Single Marker
(Only for level measurements) This function enables two tuning markers (Dual
marker) to be seen on the spectrum display. When you choose this option you can
select the active marker (Marker B
marker (Single marker).
Figure 60.- Spectrum Analyser mode with two tuning markers.
When you select the Dual marker function, the bottom of the screen displays the
frequency of each of the two markers, the signal level for each frequency and, on the far
right, the frequency difference and the level between them.
4.10.1.6 Sweep
It offers the possibility of selecting the Spectrum mode sweep rate: High
Resolution (slow sweep, high precision), Fast (fast sweep, low precision) and Antenna
Alignment (for faster sweep antenna alignment without numeric representation).
To modify the sweep speed select the Spectrum Analyser mode functions menu,
then turn the rotary selector [4] to the Sweep function and press. The screen will show a
window containing all the values which may be chosen. Turn the rotary selector [4] to
the desired speed and activate it by pressing the selector again.
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A or Marker A
B) or return to using only one
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06/2005