Keysight Technologies C Series - Page 385

Keysight N9915-90020 User’s Guide 385
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
2. Selecting and OTA mode: Press Measure > LTE FDD or LTE TDD or 5G TF or
5G NR or 5G NR EVM Conducted
3. Optimizing the FieldFox to scan for signals:
— Set the System
> System Configuration > Frequency Ref > Freq Ref
Source [GPS] >Back
— Set the GNSS (GPS+) > GNSS Receiver > Internal > Esc
See also “GNSS (GPS+) and GPS” on page 795.
— Set the Scale/Amptd to:
— RF Atten > 0 dB
—
Preamp > ON
— Set the Freq/Dist > then optionally:
All Measurement Setups:
— Press
CC CCO
— Press
Enabled OFF ON Enable/disable selected
component carriers. If only one CC is enabled, the OFF key
press is ignored (default = ON).
— Press
Center to select the currently displayed component
carrier center frequency.
For LTE FDD and LTE TDD (instrument dependent)
— Optional (LTE FDD and LTE TDD only):
——Freq Mode > Chan
——Then Channel Table – Opens a menu to choose
your
CC, Band, Channel, and then use Favorites
List, to open a softkey menu to save your Setup
n.
For 5G NR (instrument dependent)
— Optional (5G NR only):
——
Offset frequency offset of the measurement
frequency from the center frequency
——Freq Mode > Chan
——Then Channel Table – Opens a menu to choose
your
CC, Band, Raster Mode Chan Sync, and
then use
Channel Raster to open a softkey menu:
Then
Channel ARFCN, Center, or Offset
Else