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Added note on how to split a capture file into multiple files using the existing app (might be better if there was an actual Split option, future enhancement)

Mark Thompson 2023-10-08 11:10:20 -05:00
parent 5619c02ab2
commit 437f29a963
1 changed files with 4 additions and 1 deletions
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IQ-trim.md

@ -12,8 +12,11 @@ IQ Trim allows you to trim "radio silence" from the beginning and end of a C16 o
* **Max Pwr** - Power (complex magnitude) of the "strongest" samplein the capture file. * **Max Pwr** - Power (complex magnitude) of the "strongest" samplein the capture file.
* **Cutoff** - Signal to Noise cutoff as a percentage of the Max Pwr. Can be modified. * **Cutoff** - Signal to Noise cutoff as a percentage of the Max Pwr. Can be modified.
## Trimming Files ## Trimming Capture Files
1. Open a capture file. You should hopefully see a trimmable region in the IQ Display control. 1. Open a capture file. You should hopefully see a trimmable region in the IQ Display control.
- If you don't see a block in the IQ Display, the capture signal was too weak for the tool. - If you don't see a block in the IQ Display, the capture signal was too weak for the tool.
2. Manually set Start/End or use the Cutoff % to automatically trim. 2. Manually set Start/End or use the Cutoff % to automatically trim.
3. Press "Trim" - the file will be edited. It does not make a backup so be careful with your favorite sample files. Maybe use FileMan to make a backup first. 3. Press "Trim" - the file will be edited. It does not make a backup so be careful with your favorite sample files. Maybe use FileMan to make a backup first.
## Splitting Capture Files
Capture files can be split into multiple files using FileMan and Trim. Use FileMan to make copies of the original capture file, then trim each copy using manually specified Start/End positions.