[time-nuts] /Agilet counter 53131A (not 53151A) trigger problems

Rich Stolte rstolte at accusrc.com
Mon Aug 27 15:22:24 EDT 2012


Try switching the 50 ohm input impedance in and out a couple of times.  This
has worked for me more than once in the past.  I think it may be a sticking
relay or dirty contacts, etc.

Rich Stolte
AccuSource Electronics



> 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
>
> _______________________________________________
08/27/12





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