Refer to the User Guide for selecting the TD‑SCDMA/HSPA+ Signal Analyzer mode and continue with the following setups for the specific Demodulator measurements.
1. Press the Setup main menu key. (For a few of the setup parameters, you will have the choice of selecting the Auto option in a list box or an Auto submenu key. The Auto submenu key allows you a means of immediate selection rather than scrolling through the list box, highlighting Auto, and pressing the Enter key.)
a. Press the Slot Selection submenu key. The Slot Selection list box and menu open. In the list box, use the Up/Down arrow keys or the rotary knob to highlight Auto or slot 1 through slot 6 and press the Enter key.
b. Press the Trigger submenu key. The Trigger menu opens.
1. Press the Trigger Type submenu key to toggle through the three trigger types: No Trig, GPS, and Ext. The active state is underlined on the face of the virtual submenu key.
2. Press the Ext Trigger Polarity submenu key to toggle either Rising or Falling trigger edge.
3. Press the Back submenu key to return to the Setup menu.
c. Press the Uplink Switch Point submenu key. The numerical value on the face of the virtual submenu key turns red and is ready to be edited. Use the Up/Down arrow keys, rotary knob, or numerical keypad to set a new value and press the Enter key.
d. Press the SYNC‑DL Code submenu key. The SYNC‑DL Code list box opens. In the list box, use the Up/Down arrow keys or the rotary knob to highlight Auto or code 0 through code 31 and press the Enter key.
e. Press the Scrambling Midamble Code submenu key. The Scrambling/Midamble Code list box opens. In the list box, use the Up/Down arrow keys or the rotary knob to highlight Auto or code 0 through code 127 and press the Enter key.
f. Press the Max Users submenu key. The Maximum Users list box opens. In the list box, select Auto or 2 through 16 and press the Enter key.
g. Press the Meas Speed submenu key to toggle through the measuring speeds: Fast, Norm, and Slow.
h. Press the More submenu key to continue with setups in the Advanced Settings menu.
i. Press the Tau Offset submenu key to enter a tau offset value.
j. Press the Back submenu key to return to the Setup menu.
CDP Data
1. Press the Measurements main menu key.
2. Press the Demodulator submenu key.
3. Press the CDP Data submenu key once to select the CDP Data measurement and press again to open the CDP Data menu.
4. In the CDP Data menu, press the CDP Units submenu key to toggle Relative or Absolute.
5. Press the Back submenu key to return to Demodulator menu.
6. Press the Back submenu key again to return to the Measurements menu.
Modulation Summary
The Modulation Summary displays the critical Modulation transmitter performance measurements in a table format by demodulating the TD‑SCDMA/HSPA+ signal that is displayed in the Modulation Summary table: Slot Power, EVM, Peak EVM, Freq Error, Freq Error PPM, Tau, Noise Floor, Carrier Feed Through, and Peak CDE.
1. Press the Measurements main menu key.
2. Press the Demodulator submenu key.
3. Press the Modulation Summary submenu key to display the modulation summary table.
4. Press the Back submenu key to return to the Measurements menu.