[time-nuts] Using 5335 frequency counter for timing
jerry at hanler.com
Mon May 8 00:48:47 EDT 2017
I tried reading the 5335 over GPIB. In the case where I am measuring frequency I get the expected number of digits. In the case where I am measuring A->B, I only get nanoseconds (e.g 3E-9; or 4E-9). On my scopes, I was able to measure the delta at 3.28 nanoseconds with both scopes close within .01 nanoseconds. I was measuring the delta between 1M and 11.5” of RG316 cable. With a published velocity factor of .695 and 3.28E-9 seconds difference, the delta came out to 27” vs the measured 27.87”. Of course the RG316 VF wasn’t accurate to the number of digits needed to get any closer. I was demonstrating the precision of the equipment I was using to my son who is becoming somewhat of a mad scientist like his father.
> On May 7, 2017, at 8:15 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> jerry at hanler.com said:
>> I thought I had seen somewhere where people were getting higher resolution
>> using software along with the 5335, no?
> I don't know about the 5335, but if you talk to a 5334 via GPIB, you can get
> more digits than fit on the display.
> These are my opinions. I hate spam.
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
More information about the time-nuts