Interesting read but have not figured out the MIT loran thread part of the header. This is about chinese scopes
On Mon, Apr 16, 2012 at 2:27 PM, John Ackermann N8UR <j...@febo.com> wrote: > On 4/16/2012 1:47 PM, Marvin Gozum wrote: > >> At eevblog.com forum Chinese scopes are a daily discussion for over 3 >> years. >> >> In summary, in the<= 100 MHz level they are very cost effective but there >> are better and worse. Rigol, Owon and Hantek are on par while Atten and >> Uni-T are consistently rated less. The criteria for rating them are >> measurement accuracy and precision, UI, construction quality and tech >> support. >> >> Prices vary depending on country, and local support varies. Those >> differences will help you choose between the better 3 brands. >> >> Rigol is consistent in quality all around, but cost more than the others. >> Rigol is the only maker with scopes that compete with Agilent or Tek, in >> the 1-4 GHz level. Support is mostly via the sellers. In the USA, Rigol >> has a subsidiary that provides responsive support. >> >> Owon and Hantek offer larger screens, more features and better GUI, but >> can be plagued with construction flaws. Its acceptable if your seller will >> exchange any defective units you purhcase. Owon has provided tech and >> hardware support directly from China, including spares. >> >> Atten and Uni-T glitches are concerning, as they tend to provide erratic >> measurement. >> > > I got one of the 50MHz Rigol scopes last year as a "toss in" when I bought > one of their arbs. > > It works well, but one thing that annoys me is a flicker on the screen at > fast (less than a few microsecond) sweep speeds. I emailed Rigol US about > it, but never had a response so don't know if it's normal or not. My Tek > 2012 (almost identical form factor as the Rigol, by the way) doesn't show > the flicker. > > The other notable thing about the Rigol is that the on-screen text uses > that not-very-attractive, Times Roman-ish, serif font that seems ubiquitous > in Chinese documentation. Anyone know why they use that versus something > more pleasant on the eyes? > > John > > > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.