BW: Opens the Select Bandwidth list. Choose from the following bandwidths:
1.4 MHz3 MHz
5 MHz
10 MHz
15 MHz (Option 543 required)
20 MHz (Option 543 required)
EVM Mode: Press to select either Auto or PBCH Only. Selecting Auto measures PDSCH if data is available, otherwise, it measures PBCH. Selecting PBCH Only forces a PBCH measurement and the constellation measurement will only show QPSK. The instrument will automatically choose PBCH Only mode when the OTA Scanner is used.
Trigger: Opens the Trigger submenu.
Trigger Source No Trig or Ext: Press to choose between
No Trig or External (Ext). When Ext is chosen, the instrument uses an external trigger input to determine frame start timing for data acquisition. The internal algorithms will search for a frame sync and use the delta between the external timing reference and internal sync to compute a ‘Timing Error’ measurement.
Trigger Polarity Rising or Falling: Select the desired edge of the external trigger source to use for reference.
Back: Returns to the Setup menu
Ext. Ref. Freq (Only Some Models): Press to set the external reference frequency. The External Reference Frequency list opens. Highlight the desired frequency and press
Enter.
