limited timescale in persistence mode

stevenvh · Post by **stevenvh** » Mon May 04, 2015 1:44 pm

In scope mode I can have a timescale of up to 5000s/div. I found that in persistence mode this is limited to 20ms/div. Is there a reason for that? Or is it a bug? (As it happens, for my current measurements I need 50ms/div.)

Post by **Martyn** » Tue May 05, 2015 8:13 am

Persistence mode uses the multi block buffer mechanism within the scope to build up the picture. To keep a reasonable time interval between samples in an individual buffer, and to be able to capture sufficient buffers to create a persistence image, there has to be a limit to the timebase setting. This has been set at 20ms/div in this case, giving ~1000 samples per screen.

Test & Measurement Forum

limited timescale in persistence mode

limited timescale in persistence mode

Re: limited timescale in persistence mode