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P6403 changes sample interval in the later part of the data

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P6403 changes sample interval in the later part of the data

Postby ffortino » Thu Sep 09, 2010 7:46 pm

I had a strange thing happen with the P6403 scope and Picoscope 6.4.64.0 SW.

The sample interval started at 800 psec at the beginning of the waveform and then degraded to 8 nsecs towards the end of the waveform; in the same waveform !

Can I change my setup to eliminate this behavior, or is it a possible SW bug ?

Thanks,
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Re: P6403 changes sample interval in the later part of the

Postby ziko » Fri Sep 10, 2010 4:14 pm

That is strange, could you send me your settings file?

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Re: P6403 changes sample interval in the later part of the

Postby ffortino » Fri Sep 10, 2010 7:01 pm

I just re-looked at the data.
The problem seems to occur when my zoom is => 131K
and I'm looking at data in the last 1/3 of the waveform ?

My Collection time = 10 ms/div
No of samples = 200 MS

Sample interval = 800 ps
Sample rate = 1.25 GS/s
No. os samples = 125,000,000

I included the setup with no waveform data.

Thanks,
Attachments
Settings emailed.psdata
(6.15 KiB) Downloaded 125 times
ffortino
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Re: P6403 changes sample interval in the later part of the

Postby ziko » Mon Sep 13, 2010 9:51 am

Hi I opened the file but could not recreate your problem. Does this happen all the time?
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Re: P6403 changes sample interval in the later part of the

Postby ziko » Tue Sep 14, 2010 10:50 am

Hi how do you know that the sampling interval has changed, is this because you used the rulers?

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