3GPP Signal Analyzer for Anritsu RF and Microwave Handheld Instruments : TD‑SCDMA/HSPA+ Signal Analyzer : TD‑SCDMA/HSPA+ RF Measurements : Channel Spectrum
  
Channel Spectrum
TD‑SCDMA/HSPA+ Channel Spectrum
1. Press the Setup main menu key.
2. Press the More submenu key.
a. Press the Number of Carriers submenu key so that the desired number is underlined.
b. Press the Spreading Factor submenu key so that the desired Spreading Factor is underlined: Auto, 16, or 1.
c. To set the Modulation Type, press the Modulation Type submenu key. The Modulation Type dialog box opens. Select the desired setting: Auto, QPSK, 8PSK, 16QAM, or 64QAM.
d. If the channel in use has a known DwPTS signal, select On. If the channel in use does not have a DwPTS signal, then select Off. If the presence of the DwPTS is unknown or you are unsure, select Auto.
e. If necessary, press the Tau Offset submenu key to specify a Tau Offset value.
f. Press the Back submenu key to return to the Setup menu
3. Press the Measurements main menu key.
4. Press the RF Measurement submenu key.
5. Press the Channel Spectrum submenu key to activate this RF measurement view (Figure: TD‑SCDMA/HSPA+ Channel Spectrum).
6. Press the Back submenu key again to return to the Measurements menu.