3 Short-Range Comms & IoT Mode
3.11 IQ Waveform Measurement
Option B2X 255 MHz path 300 MHz
Option B5X 510 MHz path 600 MHz
Option R10 1 GHz path 1.2 GHz
Option R15 1.5 GHz path 2.4 GHz
Option R20 2 GHz path 2.4 GHz
Option R40 4 GHz path 5.1 GHz
For all other configurations:
10 MHz path 15 MHz
Option B25 25 MHz path 45 MHz
Meas Setup Summary Table
Lets you view and access many of the parameters in the Meas Setup menus on one
screen.
Spur Avoidance
Because VXT models M9410A/11A/15A/16A are direct-conversion (zero-IF)
receivers, feedthrough leakage from the local oscillator appears as a spurious signal
(spur) at the center frequency. The Spur Avoidance function is provided to eliminate
this spur, at the expense of some measurement speed.
When Spur Avoidance is enabled (the default), the instrument uses a software
algorithm to remove this spur from the displayed measurement data, but the
algorithm only operates under certain conditions. Specifically, it only operates when
the Digital IF BW<= maxBW/2.5. See "More Information" on page 1598.
You can disable this function to speed up your measurement, by setting Spur
Avoidance to Disabled.
Note that when Spur Avoidance is not in effect, either because you have disabled it
or because the Digital IF BW > maxBW/2.5, the following warning message appears
in the status bar: “Settings Alert; Spur Avoidance Off”. This is to alert you that
measurement accuracy might be impacted by the fact that Spur Avoidance is not in
effect.
The spur avoidance function is not available for:
–
M9410A/11A with EP6 option at frequency above 6 GHz
–
M9415A/16A at frequency below 380 MHz and above 12.3 GHz
–
M9410E/11E/15E/16E at frequency below 380 MHz and above 25.9 GHz
Short Range Comms & IoT Mode User's &Programmer's Reference 1597
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