If you are using a multiband unit this pull down menu allows you to select between the available operating bands.
9 Maximum Range
This sets the maximum distance of the PIM and Return Loss Measurement to be used. Depending on the distance units
settings this can be in either meters or feet. Units settings are under Settings Miscellaneous menu settings.
10 Velocity Factor
The velocity factor (VF) is a fundamental property of the RF cables in the system under test, which affects the speed at
which signals travel through the system. The velocity factor varies from cable to cable, but its value is always greater than
zero and less than or equal to one.
11 Frequency Adjust Slider
12 Power Step Arrow
7. Standard iQA/iPA Measurement Modes
7.1
Introduction
The full suite of standard (i.e. non-RTF) iQA/iPA operating modes is still available when the RTF module is connected,
including:
• Fixed frequency PIM measurement
• Time trace
• Frequency sweep
• Spectrum monitor
The only difference with the RTF module at present is the addition of a Return Loss pre-test, which is automatically
performed before commencing PIM testing in Fixed Frequency mode.
Time Trace, Frequency Sweep and Spectrum Monitor modes are all unchanged with the RTF module present.
7.2
Fixed Frequency PIM Measurements with RTF Module Connected to iQA/
iPA
The procedure for performing a fixed frequency PIM test with the RTF module connected to the iQA/iPA is as follows:
1.
Configure the instrument for a fixed frequency PIM test as described in the iQA/iPA Operating Manual.
2. Press the green RF ON/OFF button to start the test.
3. The instrument now performs a low-power return loss sweep across the transmit band of the iQA/iPA. While the
sweep is running the following progress indicator is displayed:
Operating Manual
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Passive Intermodulation and Return Loss Fault Ranging Device
24