); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I've heard this recommendation before, but I'll admit I'm not sure I understand it. My 5370B has no problem reading frequencies out to 1E-10 at 1-second gate times. 10 digits/second, just like the 53131A. Sure, the two LSDs (1E-11 and 1E-12 at 10 MHz) are effectively tied to a random-number function, but if it bothered me that much I'd put a piece of electrical tape over that part of the display.
I've seen JohnA's page at http://www.febo.com/time-freq/hardware/5370B/index.html but am not sure how to reproduce the graph at the bottom that shows random noise at the +/- 1E-9 level. That's at least 10x worse than what I observe on the display, counting a 10 MHz signal at 1 second gate time. An automated application with the 5370B can (and should) use its "computer dump" mode to move the processing to the host PC, so I don't see the 5370B's slow CPU as a real drawback. I haven't used a 53131A before. What, specifically, is better about it? -- john, KE5FX > > > > >Here is the question, I only have room for one counter, > should it be a > > 5370B or a 53131A? Which >is more useful to measuring > frequency variations? > > > > >Jeff > > > > > > Hi Jeff, > > > > In my opinion the 5370B is better for phase offset > measurements, and the > > 53131A better for frequency measurements. > > > > The 5370B is not good at all for direct frequency measurements. > > > > The 53131A is not that good for phase measurements. > > I agree with Said here. The problem with the 5370B is really in > the processing > it does, not the hardware, which is excelent for its time. > > I would use the 5370B for more static setups doing longer logging > sessions, but > for most bench-measures the 53131A is probably more versatile. > > Personally I use my 5335A for versatile bench-counter. > > Cheers, > Magnus _______________________________________________ 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.