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v240C – Marine Satellite Communication System

112

3) Current Spectrum

Display the current Spectrum settings.

4) Set Spectrum

• Reference/Scale: Set Amplitude Reference Level and Scale. Press the

Reference Level submenu key and use the arrow keys, or the keypad to

change the reference level (2000 to -2000). Select the Scale number (1, 2, 5,

or 10 dB) in the drop down list to enter the desired scale.

• Center Freq.: Enter the desired center frequency using the keypad then click

the Set button to apply the adjusted value. The adjusted value is shown at

the Current Spectrum part.

• Span: To quickly move the span value up or down, select the span number

(6, 60, 300, or 1200 MHz) in drop down list. These numbers facilitate a

zoom-in, zoom-out feature. Then click the Set button to apply the adjusted

value. The adjusted value is shown at the Current Spectrum part.

• Resolution: To quickly adjust the resolution value up or down, select the

resolution number (100, 200, 300, or 600) in drop down list. These numbers

facilitate a zoom-in, zoom-out feature. Then click the Set button to apply the

adjusted value. The adjusted value is shown at the Current Spectrum part.

• Sweep Time: Display the elapsed time all data received during the start to

sop testing interval.

5) Hold

• Max: Set the desired maximum display range value by clicking the check

button. Then click the Set button to change the max level.

• Min: Set the desired minimum display range value by clicking the check

button. Then click the Set button to change the min level.

6) Trace File

• Save: Save current Spectrum setting values and data.

• Load: Load the Trace le and display the data on the spectrum graph.

• Library: Create the new Trace le. After saving the le, it will show in the

Name list.

• Clear: Remove the spectrum data displayed on the graph.

• Name: Show the Trace le which it was created at Library in the drop down

list.

7) Run/Stop

• Run: Request the spectrum data to antenna continuously and update graph

data in real time.

• Stop: Stop requesting the spectrum data. (The graph cannot be updated.)

Intellian v240C User Manual

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