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==== Preparing your Laptop or PC for Large Captures ====
<note important>You may need to contact your system administrator or IT department before changing these settings</note>
  - Ensure you have at least 100GB of free disk space and at least 16GB of RAM.
  - Navigate to "System" in Control Panel (Windows 10) {{ :resources:tools-software:ace:screenshot_2021-07-01_152927.png?400 |}}
  - Go to "Advanced System Settings" {{ :resources:tools-software:ace:screenshot_2021-07-01_153421.png?400 |}}
  - Go to Performance and Settings {{ :resources:tools-software:ace:screenshot_2021-07-01_153421.png?400 |}}
  - Go to Advanced and Select "Change" {{ :resources:tools-software:ace:screenshot_2021-07-01_154148.png?400 |}}
  - Choose the option to "Automatically manage paging file..." {{ :resources:tools-software:ace:screenshot_2021-07-01_154333.png?400 |}}
<note important>Continuous use of paging files with an SSD based storage device may result in excessive wear!</note>
==== Limitations and What to Expect ====
  - Not all ACE plug-ins can support or have been updated to support large captures. 
  - The size of your paging file and amount of RAM your PC or Laptop has.
  - Most Capture Controllers (e.g. ADS7-V2) take a snapshot to onboard RAM as the data rate is often too high to continuously transfer to the PC (reliably). For the SDP-H1 that's 64MB and the ADS7-V2 about 4GB.
  - The FFT analysis library is limited to (2^31)-1 element double arrays. Note that Complex Samples are passed as an interleaved double array, the limitation for Complex FFTs is 2^30 I&Q samples.
  - Depending on the size of the Capture it could take a long time.
  - As the operation is memory intensive some applications may stop responding or your system may become unstable.

==== Capturing Raw Data to File to Avoid Delays ====
If you want to do large captures, we still recommend that you capture the raw data directly to file using the Remote Control service and a scripting/automation language of your choice. e.g. Python, Matlab or Labview. This will bypass the ACE GUI and analysis libraries and allow you to work with the data directly.

  * [[resources:tools-software:ace:remotecontrol|ACE Remote Control]]

==== ACE Plug-ins that Support Large Captures ====
We will add to this list as we are informed of plug-in updates, this is not authoritative, always check for plug-in and ACE updates.

  * AD9208
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