Keysight FieldFox B Series User Manual page 362

Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF
Option 377, 5G NR / 5G NR EVM Conducted Option 378
How to Set Up Over–the–Air (OTA) Mode Settings
7. Select Trace 6—choose:
The Spectrum view in 5G TF uses a center frequency that is +2.6 MHz
offset from the carrier's center frequency. This is done so that FieldFox can
capture the necessary xPBCH (physical broadcast channel) information to
demodulate the signal. Be aware that all of the instrument's displayed
numbers are rounded to three significant digits (e.g., 5.0026 GHz is
displayed as 5.003 GHz).
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— Then Channel ARFCN
Channel Number signal to be measured. Setting an ARFCN
automatically sets a corresponding Center frequency for
the component carrier.
— Then Center
— Then Offset
— Then Sync Raster (Option 378 5G NR and 5G NR EVM Only) opens a
softkey menu, where you can set the Global Synchronization raster
Channel using wider SSB frequency search. Sync ARFCN is coupled
with Sync GSCN. ARFCN and GSCN minimum and maximum values
vary with band setting and licensed frequency.
— Then Sync ARFCN
synchronized.
— Then Sync GSCN
synchronized.
— Then Center
— Then Offset
— Then Back
— Window 1 2 3 4
— Then Win State OFF ON
— Then Display Type
— Table or
— Bar Chart
— Spectrum
— Strip Chart
— Constellation
— Frame Summary
— Then CC (select component carriers)
Sets the Absolute Radio-Frequency
sets the ARFCN center frequency.
sets the offset from the Center frequency.
sets the ARFCN reference signals to be
sets the GSCN signals to be
sets the GSCN center frequency.
sets the offset from the Center frequency.
to ON
or
or
or
(5G NR EVM only) or
(5G NR EVM only)
Keysight N9938-90006 User's Guide