[time-nuts] What's the easiest way to divide by 10 for Thunderbolt reference output?

Chris Hoffman, KG6O cq.kg6o at gmail.com
Tue Jul 24 17:05:21 UTC 2012


John,

That's interesting to me. What exactly are the actual structural limitations of [that] pic?

-CH

On Jul 24, 2012, at 7:55, John Ackermann N8UR <jra at febo.com> wrote:

> Unfortunately, the TAPR T2-Mini divider (http://www.tapr.org/kits_t2-mini.html) can't quite get to 1 MHz from 10 MHz with the PIC divider chip due to limitations in the chip architecture.
> 
> However, nothing says you couldn't "dead bug" in a decade divider chip in place of the PIC, and let the T2-Mini provide the input conditioning, output driver, voltage regulation, connectorization, etc. for you, making it much a smaller project.
> 
> John
> ----
> 
> On 7/24/2012 8:18 AM, Chris Wilson wrote:
>> 
>> 
>>   24/07/2012 13:14
>> 
>> My Racal Dana 9908 can take a 1 Mhz external reference. Inputting my
>> Thunderbolt at 10 MHz works, but shifts the decimal point over. I am
>> not sure if this has any other detrimental effects as to accuracy or
>> other? What's the easiest way to have a 1 MHz reference from the
>> Thunderbolt for this timer / counter please, yet retaining 10 Mhz for
>> my other devices that want a 10MHz reference signal?  Thanks.
>> 
> 
> 
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