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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
Optional: Using RTSA to verify the signal quality (Requires Option 350
and Preamp Option 235)
— Press Mode >
— Press Freq/Dist >
— Press Scale/Amptd
Figure 13-22
Using RTSA to verify LTE FDD 751 MHz signal quality–20 dB Signal to Noise
Displayed (Requires Option 350 and Preamp Option 235)
Keysight N9915-90020 User's Guide
RTSA
— Then
Density Spectrum
Center
(For this example, Center = 751 MHz.)
— Then
Preamp [ON]
Ref Level
— Then
(Default). Then use the
or numeric keypad to position the trace for optimum viewing on the
FieldFox display. Refer to
You should see a ~20 dB or greater LTE FDD signal–to–noise level. If not
refer to
"Troubleshooting" on page
(Default)
(Default) > 751 MHz
Figure 13-22 on page
416.
arrows, the rotary knob,
383.
383
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