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The following is a list of suggestions for speeding-up your test plan times while minimizing the changes to your initial (functional) test plan that cost time and/or money.



Typical time needed for measurement:

    VCC changes and DC measurements are performed in approximately 2 msec
    RF measurements are performed in approximately 30 msec
    RF Frequency moves are performed in approximately 20 msec

Fast RF Measurements: S parameters, RF Power & Phase

Slow RF Measurements: ACPR, Noise Figure, Intermodulation Distortion, Harmonics (do less frequently)

Minimize/eliminate RF Mechanical Switch changes

Changing RF Ports from Source to Receive or Receive to Source mode requires a switch change


Changing RF Source 1 & 2's RF Attenuator settings requires a switch change

Minimize RF Source & RF Receiver Frequency changes

Replace Narrow IF Filter measurements with WIDE IF Filter measurements (much faster)

Use 16 or less Averages for RF measurements and 32 or less Averages for DC measurements

Setting a parameter to a Local Variable value is slow - it requires a mini-compile to occur

Oscope vs. Receiver measurements

If the RF Receiver can make the measurement, use the Receiver


The Oscope is designed to measure pulse characteristics: Rise/Fall Time, Period, Duty Cycle, etc.
The Receiver is designed to measure Complex Signals: Amplitude, Phase, Noise, Power, Frequency
The Receiver has better Frequency Range, Dynamic Range & measurement speed

Items to set in Global Defaults

Set Receiver Frequency Tracking to Source 1 or System


Set Test Head Parameter to b2
Set RF Ports Receive or Source settings
Set Receiver IF Gain
Set Source 1 Frequency & Level to first RF stimulus signal
Set Source 2 Frequency & Level to first IM stimulus signal
Set Source 3 Frequency & Level to first LO stimulus signal

Switch Source 1 Mode to noise is faster than turning on and off a RF Source

Source12 Attenuation: Use the Source 1 Mode button to further isolate Source 1 & 2 from the DUT

LO Leakage at the DUT's RF input: Use b1 to measure

Analyze Compiled Delta Settings: Receiver & Source RF Frequency, Attenuator settings, Test Head settings, etc.

Intermod measurements- leave RF Source 1 at the standard stimulus frequency, this saves 2 frequency moves

Minimize Test State changes by making test conditions exactly the same for as many measurements as possible:

RF Stimulus levels, frequencies, Receiver settings, DC levels, current limits, ranges, etc.

Notes:

The Optimizer only optimizes the tests within a Test Section.

DC measurements set the Receiver and the RF sources to their default frequency


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