Digital Television Signal Analyzer Measurement Guide : ISDB‑T Signal Analyzer : Phase Noise, Custom
 
Phase Noise, Custom
Test Selection:
1. Press the Meas Selection main menu key.
2. Press the Phase Noise submenu key.
Test Setup:
1. Press the Meas Setup main menu key to open the Meas Setup menu.
2. Press the Meas Mode submenu key to open the Select Meas Mode list box. Select from: Single, Continuous, and Average. Scroll through to the desired measure mode using the Up/Down arrow keys or the rotary knob to highlight the measure mode and then press Enter.
If Average is selected, then set up Average Count. Otherwise, continue to configure Marker at Step 3.
a. Press the Average Count submenu key to open the Average Count Editor list box.
b. Scroll through to the desired number count by using the Up/Down arrow keys or the rotary knob. The count may be entered by using the numeric keypad. Press Enter to set the value.
3. Press the Marker submenu key to select either On or Off.
If On is selected, then the maker (a green diamond) is displayed on the graph, and the Integration submenu key is displayed in the menu. Use the arrow keys or the rotary knob to move the marker. Three measurement point values at the marker location are displayed in the graph. These three values and their respective units are frequency offset (Hz), Phase Noise (dBc/Hz), and signal‑to‑marker ratio (dBc).
4. Press the Integration submenu key to add the integration marker on the graph. The range between the standard marker and the integration marker is shown in white between 2 vertical green lines on the graph. The differences in point measurements from the standard marker to the integration marker are displayed in green at the top right corner of the Phase Noise graph as a frequency range and a dBc value. The sample image in Figure: Transmitter Phase Noise Measurement with Integration Marker On may differ from any display on your instrument.
5. Press the Execute Measure main menu key to begin testing.
Transmitter Phase Noise Measurement with Integration Marker On
6. Save measurements to file by pressing the Save Files main menu key. Refer to the section, Saving the Measurement Results for more information regarding saving files.