taken from here
https://www.eevblog.com/forum/testgear/rigol-ds1000z-series-font-size/msg559800/#msg559800aaa..there's the marmad i know, getting all feisty over nothing.
again.
Well, no - sorry, I have not learned anything new from your posts - which continue to be filled with loads of incorrect speculation and bad information.
damn, i see simillar posts from teenagers when they first appear on the web!
ego-trips.
adults just correct the wrong info.
you learned your camera is crap. i bet recent smartphones have better quality.
There is no "virtual 12bit stuff". It seems you still don't understand how the DSOs are working. I suggest you go back and re-read the posts in the other thread.
nope, i think you didn't understand the terminology i used, in a simillar fashion that you calculate bits of vertical resolution to end up with a decimal point numbers. 9.8bits i think you calculated somewhere.
if the adc is 8bit (and it is on both 1k and 2k scopes) than any way to achieve higher res will be virtual because it's not real, it's achieved by tricks.
(as rf loop explains shorter and simpler than your pdf paper, not that pdf is bad)
it's just that 2k is devoting more cpu to doing it, ie z is not really doing it, like we saw from the screenshots.
i understand exactly how they get virtual "12bits" from real 8bits. i mentioned it in the thread, if it's wrong, correct it.
No, you're wrong again on multiple points. Either your eyes are bad, you don't use a color-corrected monitor, or you don't understand what you're looking at.
my god man, my god! come here and we'll test our eyes, we'll see their color performance, we'll see of color (on monitor) affects this (at all) and we'll also talk about pixelization by lower resoltuion, which seems not really quite your field of expertise.....
if you can't see a drastic resolution decrease in z portion of the screen i posted above, then you'0
re quite unfamiliar with the way images are scaled.....
see this, both images originated from same lores source, one is jaggy, one is less jaggy but more blurred...the only difference is resizer.....
now, it is not really important for us to go into details of how and why (although we already did, and can do some more) but the fact is z has consideratly less vert. res.
with same number of bits of adc. and same display resolution! There is no lower resolution - they are exactly the same -
meh, make a 320x240 paint image of diagonal thin line(or sine form), and then make the same thing (same line, slanted in a same angle) on 1920x1080, and you'll probably get what i'm talking about.
probably!
and the only thing that the DS1000Z has going for it is slightly more contrast (due to a brighter backlight). But it's "washed-out" and less "sharp" (this is NOT the same thing as contrast) because of it's worse sub-pixel anti-aliasing. This is apparent - even to those with poor vision - when you examine the images close-up (using pa3bca's photos) :
you're going on too far in a wrong direction. you talk about small nuances that less will notice(i would, and better than you, i wear no glasses and can read z display just fine, font is not small for me) and skip the "elephant in the room" ie the jagginess of the z sine forms.
First, here is the rendering of "black" on both DSO screens - normal and inverted to "white". If it's not obvious which one is closer to true black, then you need a new computer monitor (or you need to calibrate the one you've got):
what a nitpicking parade!
it's probably true, it's probably correct, but i just can't bring myself to the fact that you see the 1000(z?) trees and yet not see the forest!
I repeat: there is no higher res - they are both in Normal acquisition mode on displays of equivalent resolution.
this tells me 2k has much better resizer, the thing that converts less adc levels to more pixels the display has.
when both displays are 480 pixels high.
again, could you, please, make a png screenshots from both scopes on that AM signal?
i' m really interested in this, ie why it's happening.