Turn your Rigol DS1052E Oscilloscope into a 100MHz DS1102E
in [Design]
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From: brent on 8 Apr 2010 11:57 On Apr 8, 10:01 am, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > On Thu, 08 Apr 2010 22:44:21 +1000, Ross Vumbaca > > <ros...(a)au.com.optushome> wrote: > >Hi, > > >On 8/04/2010 10:43, David L. Jones wrote: > > >> Me neither. > >> Although the low end digitals like the Rigols are no match for an analog > >> scope for some jobs. So unless you've got a high end digital, it's still > >> useful to have that analog scope around. > > >When might an analogue scope be better than a low end digital? > > >Regards, > > >Ross.. > > I can't think of much. Maybe clean X-Y plots; the digitals are sloppy > in X-Y mode. > > ftp://jjlarkin.lmi.net/Hills.JPG > > John When I am looking at video signals with higher power RF signals on the board I will take an analog scope any day.
From: John Larkin on 8 Apr 2010 12:13 On Thu, 8 Apr 2010 08:57:53 -0700 (PDT), brent <bulegoge(a)columbus.rr.com> wrote: >On Apr 8, 10:01�am, John Larkin ><jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: >> On Thu, 08 Apr 2010 22:44:21 +1000, Ross Vumbaca >> >> <ros...(a)au.com.optushome> wrote: >> >Hi, >> >> >On 8/04/2010 10:43, David L. Jones wrote: >> >> >> Me neither. >> >> Although the low end digitals like the Rigols are no match for an analog >> >> scope for some jobs. So unless you've got a high end digital, it's still >> >> useful to have that analog scope around. >> >> >When might an analogue scope be better than a low end digital? >> >> >Regards, >> >> >Ross.. >> >> I can't think of much. Maybe clean X-Y plots; the digitals are sloppy >> in X-Y mode. >> >> ftp://jjlarkin.lmi.net/Hills.JPG >> >> John > >When I am looking at video signals with higher power RF signals on the >board I will take an analog scope any day. The advantages of single-shot acquisition, measurement cursors, long-range pre/post-trigger storage, stored waveform pan and zoom, waveform saving, signal averaging, variable/infinite persistance, color, and shoebox size are overwhelming. For HV/RF stuff, the TPS isolated-input scopes are radical. Clip your scope ground lead anywhere. John
From: brent on 8 Apr 2010 12:30 On Apr 8, 12:13 pm, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > On Thu, 8 Apr 2010 08:57:53 -0700 (PDT), brent > > > > <buleg...(a)columbus.rr.com> wrote: > >On Apr 8, 10:01 am, John Larkin > ><jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > >> On Thu, 08 Apr 2010 22:44:21 +1000, Ross Vumbaca > > >> <ros...(a)au.com.optushome> wrote: > >> >Hi, > > >> >On 8/04/2010 10:43, David L. Jones wrote: > > >> >> Me neither. > >> >> Although the low end digitals like the Rigols are no match for an analog > >> >> scope for some jobs. So unless you've got a high end digital, it's still > >> >> useful to have that analog scope around. > > >> >When might an analogue scope be better than a low end digital? > > >> >Regards, > > >> >Ross.. > > >> I can't think of much. Maybe clean X-Y plots; the digitals are sloppy > >> in X-Y mode. > > >>ftp://jjlarkin.lmi.net/Hills.JPG > > >> John > > >When I am looking at video signals with higher power RF signals on the > >board I will take an analog scope any day. > > The advantages of single-shot acquisition, measurement cursors, > long-range pre/post-trigger storage, stored waveform pan and zoom, > waveform saving, signal averaging, variable/infinite persistance, > color, and shoebox size are overwhelming. > > For HV/RF stuff, the TPS isolated-input scopes are radical. Clip your > scope ground lead anywhere. > > John Sure, in most cases I prefer a digital scope. When they made the digital scope user interface to mimic analog scopes interface (Why did that take like 15 years???) digital scopes are almost always better. But for the stuff available to me , I like analog scopes in the case mentioned above. I do not often come across that case. Sometimes when I am trying to get a qualitative feel for thermal noise in a receiver I prefer an analog scope too. I have not tried the TPS isolated input scopes. I hope to get a chance to try one sometime (per your suggestion) , but our capital budgets are severely limited these days.
From: Nico Coesel on 8 Apr 2010 12:49 "JosephKK"<quiettechblue(a)yahoo.com> wrote: >On Wed, 07 Apr 2010 17:17:53 GMT, nico(a)puntnl.niks (Nico Coesel) wrote: > >>"David L. Jones" <altzone(a)gmail.com> wrote: >> >>>John Larkin wrote: >>>> On Tue, 06 Apr 2010 19:34:32 -0700, >>>> "JosephKK"<quiettechblue(a)yahoo.com> wrote: >>>> >>>>> On Mon, 05 Apr 2010 21:45:57 -0700, John Larkin >>> >>>Yup, economy of scale and other factors. >> >>>and the 470MHz at $12K+: >>>http://www.tequipment.net/IwatsuSS-7847A.html >>>Ouch! >> >>They are a lot cheaper second hand because no-one wants an analog >>scope anymore. $500 should be enough. > >There is still a few us who want one. I am still on the lookout for=20 >a Tek 2465 or very similar. There are cases where even my TDS 544A=20 >won't get me the same results. The Iwatsu SS-7847A is a very good oscilloscope and less old than the 2465. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... nico(a)nctdevpuntnl (punt=.) --------------------------------------------------------------
From: Jan Panteltje on 8 Apr 2010 13:06
On a sunny day (Thu, 8 Apr 2010 08:57:53 -0700 (PDT)) it happened brent <bulegoge(a)columbus.rr.com> wrote in <fb2980a4-6e02-48db-b20d-57eefa8df2a6(a)v8g2000vbh.googlegroups.com>: >On Apr 8, 10:01�am, John Larkin beep BAD SYNTAX >> I can't think of much. Maybe clean X-Y plots; the digitals are sloppy >> in X-Y mode. >> >> ftp://jjlarkin.lmi.net/Hills.JPG >> >> John > >When I am looking at video signals with higher power RF signals on the >board I will take an analog scope any day. I agree, for video an analog scope is great. In fact the *ONLY* reason for digital is storage, and even then good analog storage scope once existed. Storage is important when you look at one time events, long data sequences, or events with a very low duty cycle that on an analog scope would show with a too low intensity. Those are, as far as I know, The ONLY advantages of digitising. Maybe the FFT thing, and some other processing of data can be added as advantage but that is actually no longer a scope. Larking is a scope buyer, he seems to just buy and buy scopes, not a real scope wizard. I have re-scaled him to 3 on a 0-10 scale. |