Signal path reset for recalibration1/6/2024 ![]() The DM NVX device is not grounded properly. The video flickers or drops when the DM NVX device is touched or when metal in the vicinity of the device is touched. Switch the audio input to 2-channel audio. manufactured at end of 2007) have noticably reduced calibration cycles (ie. The audio is multichannel on a DM-NVX-E30 or DM-NVX-E30C, which do not downmix a 2-channel signal from a multichannel surround sound source. The older non-A variants took the longest to recalibrate, the 'A' models reduced the time for the calibration at vertical changes, and the later models (i.e. Entering NO will cancel the reset and show the. The time for the calibration variies depending on what WavePro you have. resets the flow calibration factors for this flow device to defaults and shows the message Changes Saved. This is different from other scope manufacturers' scopes which only self-calibrate quickly at power-up and don't compensate for temperature shift or multiple vertical settings, and where a more thorough calibration has to be started manually. ![]() I would leave it on, as thermal recalibrations will only occur during the warm-up phase (10-15min) and, provided your room temperature doesn't change' will pretty much disappear. There's a setting to disable that so that a critical measurement is not interrupted, but that will be reset during the next power-up. In addition, the scope does a recalibration when the internal temperature changes to a certain extend. All LeCroy high-end scopes do this if a vertical change results in changes to the signal path (which contains RF relays) to make sure the path and ADC remain within specs. Aside from the fact that it's changes to the vertical scale which triggers the recalibration cycle, that's normal.
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