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System Settings
Utilities
How to view and change the Frequency Extender (Freq Extnd) Settings
The following are the only supported modes for the frequency extender feature:
SA (Option 233), mixed analyzers, RTSA (Option 350), IQA (Option 351), OTA
(Option 370/377/378), PAA (Option 360) modes, and VSA (via the Remote
Server feature).
IMPORTANT!
When using a frequency extender with the FieldFox you need to manually
set the LO power:
– When using the mixer, the LO power should be reduced to –12 dBm and
– Reduce frequency span to make measurements until the "unleveled
power" message goes away (requires ≥A.12.40 firmware)
If you upgrade your FieldFox firmware to ≥A.12.40, but find you are unable
to adjust the LO power level to –12 dBm, refer to
page
IMPORTANT!
Due to limitations in the OML hardware, the heads have a 6 GHz frequency
span.
Examples
Using a 24 to 40 GHz mixer, you can sweep:
— 24 to 30 GHz and 25 to 31 GHz, but not
— 24 to 31 GHz
Assuming the same 24 to 40 GHz mixer, using OTA mode, you can
— Set a CCO to 24 GHz and CC1 to 31 GHz, but not
—
PAA and 89600 VSA (via the Remote Server feature) are compatible with
the frequency converter heads, but cannot apply or edit the frequency
head corrections.
For this section, refer to
Figure 30-3 on page
and
These settings are used to set up a frequency extender head (e.g., OML head).
The frequency extender feature can be used in OTA FR2 measurements. See
also,
LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted
Option 378."
Keysight N9938-90006 User's Guide
770.
CC0 to 4 GHz and CC1 to 32 GHz, because you have to remain within
the mixer's band
Figure 30-1 on page
738,
Figure 30-4 on page
Figure 30-6 on page
740.
Chapter 13, "Over–the–Air Measurements (OTA) – LTE FDD Option 370,
"Erase User Data" on
737,
Figure 30-2 on page
739,
Figure 30-5 on page
738,
739,
733
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