Bill,
That is golden. You raised your kids well!
See also the magic moment of 2006:
https://www.febo.com/pipermail/time-nuts/2006-April/020455.html
and the triple palindrome of 2002:
http://leapsecond.com/pages/mjd52325/
/tvb
On 6/20/2020 7:42 PM, William H. Fite wrote:
When my son was
When my son was 10 years old, he suddenly came running down the stairs
madly clanging an old dinner bell.
"What in the world are you doing?"
"Quick, dad, look at the clock"
I looked.
"Now think about the calendar."
I thought. And thought. Then it dawned on me.
The date and time was 12:34
Hi
*Any* divide approach followed by a flip flop clocked by the input clock will
meet
that same basic requirement. While it *sounds* like it would improve things, it
very much depends on the details.
What are you trying to do? What is the input frequency? What is the phase noise
requirement?
Similar sense of humor. See if the attachment comes through.
Regards,
Mark
On Sat, Jun 20, 2020 at 10:48 AM Bob Fleming wrote:
>
> Divide by 81 has resulted in a great conversation but I could not help but
> notice a potential attempt at humor.
> 10Mhz divided by 81 is 123456.7901 which I
On Wed, Jun 3, 2020 at 2:33 PM Peter Vince wrote:
> I've just been told about an online undergraduate course on the GPS system
> done by Stanford University. I don't remember reading about it on here,
> and a quick check of the archives drew a blank. The course is completely
> free, and on
Hi Robert,
You are right, its the lambda divider that was discussed. Need to better
understand this approach
74HC40103 could also do the 81 Pi-divide easily, but I tend to prefer the
PICDIV concept where the controller is clocked by the signal to divide (So
limited or no noise is added).
Gilles, if I read the Calosso-Rubiola paper correctly a Pi divider is pretty
much your standard square-wave producing digital divider, such as a 74163 (for
even divides). There's odd-value (3,5,7) Pi dividers shown at
https://www.theremin.us/Circuit_Library/symmetrical_digital_dividers.html.
Divide by 81 has resulted in a great conversation but I could not help but
notice a potential attempt at humor.
10Mhz divided by 81 is 123456.7901 which I find to be amusing.
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On the 15 MHz FE 405 we use an XOR and two Flip Flops to divide by 3 with a
symmetrical output. Four of these will give you symmetry and divide by 81
Bert Kehren
In a message dated 6/19/2020 8:14:31 PM Eastern Standard Time, kb...@n1k.org
writes:
Hi
The biggest issue is that there are so
