Mask Testing 15Keysight InfiniiVision 2000 X-Series Oscilloscopes User's Guide 207To manually modify a mask fileYou can manually modify a mask file that you created using the Automaskfunction.1 Follow the steps 1-7 in “To create a mask from a "golden" waveform(Automask)" on page 201. Do not clear the mask after creating it.2 Attach a USB mass storage device to the oscilloscope.3 Press the [Save/Recall] key.4 Press the Save softkey.5 Press the Format softkey and select Mask.6 Press the second softkey and select a destination folder on your USB massstorage device.7 Press the Press to Save softkey. This creates an ASCII text file that describes themask.8 Remove the USB mass storage device and connect it to a PC.9 Open the .msk file your created using a text editor (such as Wordpad).10 Edit, save, and close the file.The mask file contains the following sections:• Mask File Identifier.• Mask Title.Reset Statistics Note that statistics are also reset when:• Mask Test is switched on after being switched off.• Clear Mask softkey is pressed.• An Automask is created.Additionally, the accumulated time counter is reset whenever the oscilloscopeis run after the acquisition was stopped.Transparent Enable Transparent mode to write measurement values and statistics on thescreen without a background. Disable the Transparent mode to show them witha gray background. The Transparent setting affects mask test statistics,measurement statistics, and reference waveform information display.Clear Display Clears acquisition data from the oscilloscope display.