- ![]() | BAND CONFIG Opens the BAND CONFIG Menu below. CENTER FREQUENCY Sets the center frequency of the measurement channel. Changing the center frequency sets the band to MANUAL. CHANNEL BW Sets the measurement channel bandwidth. The available bandwidth settings depend on the selected band and bandwidth option installed in the instrument. Refer to Options Settings. SSB OFFSET SSB is the synchronous signal block. The SSB offset sets the frequency offset between the SSB and the center frequency of the channel. Negative values result in an offset lower than the center frequency. Positive values result in an offset higher than the center frequency. AUTO SSB DETECT Auto detects the center position of the SSB according to the 3GPP raster of GSCN values. If the search is successful, the correct SSB OFFSET is automatically applied and the signal should synchronize for demodulation. See Figure: AUTO DETECT SSB Dialogs (5GNR Measurements). SUBCARRIER SPACING Sets the subcarrier spacing. The available input range is dependent on the selected band. MAPPING PATTERN Select which mapping pattern: P1 for the 3GPP Phase 1 standard, March 2018. P2 for the 3GPP Phase 2 standard, September 2018. Auto selects the most recent standard. GESTURES Opens the GESTURES Menu. Not shown in 5GNR Summary, Multi PCI, Carrier Aggregation or Constellation measurements. Available in Channel Power, OBW and EIRP modes only. |
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- ![]() | BAND Select MANUAL, Global All or one of the predefined bands. Selecting MANUAL disables ARFCN and GSCN settings. ARFCN ARFCN is the absolute radio frequency channel number. The ARFCN is a unique identification number assigned to each radio channel within a communications spectrum. The ARFCN can be used to calculate the center frequency of the radio channel. The available input range is dependent on the selected band. ARFCN is activated when the BAND is set to predefined band or Global All. CHANNEL BW Sets the measurement channel bandwidth. The available bandwidth settings depend on the selected band and bandwidth option installed in the instrument. Refer to Options Settings. GSCN GSCN is the global synchronization raster channel. The GSCN identifies the mapping/offset of the synchronous signal block (SSB). The available input range is dependent on the selected band. GSCN is activated when the BAND is set to predefined band or Global All. |
Note | The instrument must properly sync to and decode the signal to which the center frequency (or ARFCN), SSB offset (or GSCN), and subcarrier spacing are set to correctly match the 5GNR signal under test. |
- ![]() | DRAG Toggles the drag feature on or off. When toggled off, the center frequency will not change when dragging the spectrum display. This can be useful when dragging markers. Note that the Drag feature can also be toggled on/off by clicking the locks under the display. |