RIGOL DS1053E

[BETAMAX]

Dave - I am new to Blogs but enjoyed looking at a couple of your technical reviews.  I have an old TDS210 and the DS1053E looks really good as a replacement, but does it emulate the Tek's clitch capture mode?  I use scopes for analogue transient work and at RF frequencies and when looking at AM modulation, many digital scope present you with display aliasing even thou they have fast sampling and good memory depth unless you drop into glitch capture mode before looking at the modulation at an audio based sweep rate.   I have scanned the net but I couldn't really find out much detail on the RIGOL.  I might HAVE to get one, but I still wont be throwing away my Tek 485 & 7306 mainframe analogue scopes.

[RayJones]

The DS1052E can be set to Peak Detect acquisition mode which does what you desire.

I presume DS1053E has a very similar front end....

[BETAMAX]

Ray,

Thanks for that info.  How the TDS210 manages that info in practice to make sure you dont lose the information as you "pan out", is to check 10 points and throw out all except maximum and minimum points so you dont accidently "lose" the glitch as the machine tries to display the total memeory information within the resolution limits of the display.

cheers Noel

[alm]

The long memory (as long as you don't require max. sample rate) helps with this, so peak detect won't be as necessary (it can just store all the samples). If you do require peak detect, check if it supports sample rates all the way up to 1GS/s. On some scopes, peak detect doesn't work at the highest sampling rates, which makes it much less useful in my opinion. Also check out the competing Instek model, it could be superior in this application (supports long memory even at 1GS/s if I recall correctly).

[BETAMAX]

alm,

Thanks for the advice.  I noticed from the RIGOL specs at http://rigoloscilloscope.com/digital-storage-oscilloscope/rigol-ds1052e-50mhz-digital-oscilloscope/prod_2.html that total memory depth is 1MB but at http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=180568556086&ssPageName=STRK:MEWAX:IT there is a table which indicates options between sample rates and memory depth and it is not clear whether the DS1052E can do both in glitch capture mode.  I realise the memory is deep but the issue with most old digital scopes with lower resolution displays was display aliasing. (In other words you lose the visual indication when you zoom out even though its still in memory.)