>From the datasheet: A input 10Hz..125MHz min level 25mVrms (-19dBm) B input min 50MHz, -20dBm the problem is on A input only? Maybe 150MHz for the A input, being beyond the official specifications, requires more signal on one counter than the other. In the past they all were fine? I have read your paper on the correlation between the real and predicted aging of crystal oscillators. I'm trying to find a suitable model for the Morion MV201 OCXO or the Oscilloquartz 8663 to implement a Kalman filter.
On Fri, Aug 24, 2012 at 3:34 PM, Bernd Neubig <bneu...@t-online.de> wrote: > Hi all, > > I have several HP/Agilent frequency counters 53151A (and 53152A) in my lab. > Several of them meanwhile show trigger problems. > > I have tested the A and B channel between 5 MHz and 200 MHZ at three input > levels of -10 dBm, 0 dBm and +10 dBm. > > Those with trigger problems show erroneous numbers at -10 dBm input level > rather selectively, i.e. mostly at 100 MHz, some also at 150 MHz, while the > are o.k. > > Has anyone on this list experienced similar defects and can give a > recommendation how to fix/repair them? > > > > Best regards > > > > Bernd > > DK1AG > > www.axtal.com > > _______________________________________________ > 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. > _______________________________________________ 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.
