206 Keysight N9927-90001 User’s Guide
SA (Spectrum Analyzer) Mode
How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA
Mode (Option 233–Mixed Analyzers))
How to Set Up EMF Settings (Requires EMF (Option 358), GPS
(Option 307), and SA Mode (Option 233–Mixed Analyzers))
EMF mode measures signals at the SA RF Input Port 2 connector.
EMF mode requires the FieldFox to have SA mode (Option 233 on combination
analyzers)), GPS (Option 307), and CPU2 installed.
Recommended, but not required, preamplifier (Option 235) to improve receiver
sensitivity.
With Option 358 (EMF), network designers can measure and verity the RF
exposure compliance as required by each country.
If SA mode is licensed for EMF Option 358, the primary measurement
performed is Channel Power (CHP) which automatically switches amongst the
3 TriAxial antenna axis (X/Y/Z), to provide a summation of "total power"
detected, using unique Antenna supplied corrections for the individual axis,
with results in FieldStrength units. This is accomplished within the existing SA
Channel Power measurement.
Even without license EMF Option 358, the System Utilities menu enables one
to Import Corrections and manually drive the Antenna to a particular axis (X, Y,
or Z). The manual control thus allows any SA Receiver measurement to sweep
that axis just like any other antenna transducer, however without license the
imported corrections are not usable from the Apps. But with license the SA
provides for easy use of the imported XYZ corrections, thus allowing
presentation of correctly compensated FieldStrength measurements, for 1 axis
at a time.
This section reviews the steps in setting up an EMF measurement, using a USB
antenna. If you are not familiar with this process or would like more
information, refer to Chapter 14, “USB Antennas – (Full Capability Requires
EMF Option 358, and SA mode (Option 233 Mixed Analyzers)).”
This section consists of:
If OTA or SA mode does not detect an EMF Option 358 license, then the
EMF application and the USB antenna’s axes must be set up manually. This
use model is not recommended or supported by Keysight.
The USB antenna’s cable loss is not included, in the antenna’s correction
factors. For an accurate EMF measurement, the cable loss values should
be accounted for. Refer to “Editing Cable Correction Factors and Adding
New Cable Factors” on page 215.
IMPORTANT! The USB triaxial antenna—or equivalent—is required for EMF
measurements. Refer to Chapter 14, “USB Antennas – (Full Capability
Requires EMF Option 358, and SA mode (Option 233 Mixed Analyzers)).”
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