Re: Type 184


Stephen
 

On Fri, Jul 31, 2020 at 05:40 AM, Roy Morgan wrote:


The error reading you get from your counter seems to be on the order of one
fifth of one thousandth of a percent.
Yes, I think so.

The spec on the 184 is one thousandth of one percent.

So, IF the counter is dead on, the 184 error is well within specification. I
offer two questions:

1) Is the counter dead on?
It’s probably not “dead on”, but should be very close to it. It was last calibrated in 2010.


2) Why worry about it? Do you really need or want time marks to be accurate
to one thousandth of one percent?
No, you are right.

(Another way to think about this is: how
wide is the trace on a scope you might > want to calibrate?)
Good point.

Roy Morgan
K1LKY Western Mass

On Jul 31, 2020, at 11:52 AM, Ken Eckert <eckertkp@...> wrote:

From the manual:

2. Check Crystal Oscillator Frequency
a. Requirement-Frequency 1 0 MHz ± 1 00 Hz at ambient
room temperature. Crystal oven stabil ized. (Two hours
warm-up time after power is appl ied before crystal oven is
stabilized.)

On Fri, Jul 31, 2020 at 8:41 AM Tom Gardner <tggzzz@...> wrote:

On 31/07/20 16:26, Stephen wrote:
I have this Type 184 that I acquired a few months back from EBay.
...

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