To Keep the hacking thread clean, I´ll carry on here.
Done the "upgrade" Thing, before I took a pic from the 70Mhz BW while the 40ps pulse-gen. was running:
![](https://s16.directupload.net/images/190314/temp/vgkfg26w.png)
(Unfortunately forgotten the 50
![Ohms \$\Omega\$](https://www.eevblog.com/forum/Smileys/default/omega.gif.pagespeed.ce.G89vbH4KGC.gif)
Termination)
Now, with 350Mhz BW:
![](https://s16.directupload.net/images/190315/temp/tpwcfd97.png)
Quite "faster", but somewhat of a "glitch" into it.
Compare it with lecroy WS3024, first with 1M too:
![](https://s17.directupload.net/images/190315/temp/t77wfi5p.jpg)
Looks "better"...
Now, with a 50
![Ohms \$\Omega\$](https://www.eevblog.com/forum/Smileys/default/omega.gif.pagespeed.ce.G89vbH4KGC.gif)
external termination resistor, rigol:
![](https://s16.directupload.net/images/190315/temp/vdrswbv7.png)
No "glitches", really fast (under 1ns) but massive overshoot...
![Sad :(](https://www.eevblog.com/forum/Smileys/default/xsad.gif.pagespeed.ic.L3FGyzQrjB.png)
Hm, hm....test it with the same resistor on the lecroy:
![](https://s16.directupload.net/images/190315/temp/5pg6rnir.jpg)
Aha, same on the lecroy..
![Cool 8)](https://www.eevblog.com/forum/Smileys/default/xcool.gif.pagespeed.ic.cOxV6sPNRd.png)
Now, with it´s own integraded 50
![Ohms \$\Omega\$](https://www.eevblog.com/forum/Smileys/default/omega.gif.pagespeed.ce.G89vbH4KGC.gif)
termination:
![](https://s16.directupload.net/images/190315/temp/k5txtryg.jpg)
Ahh, perfect....
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/xcheesy.gif.pagespeed.ic.KPzuH4J-TG.png)
And external termination as needed by the rigol is just crap.
Ah, some more about the problems, in this case a forgotten thing :
Functiongenerator, decreasing/increasing the amplitude : There´s no choice between Vpp or Vrms, it´s only in V....