I added a Maxim DS3231 "extremely accurate I2C real- time clock (RTC) with an integrated temperature- compensated crystal oscillator (TCXO) and crystal"[1] to my BeagleBone Black based Linux system. It appears to lose 1 second every 5 to 10 days, which makes it possible to do these modes in the field if the clock has been set recently. Since it is a separate board, it could be added to many different computers/radios.

73 Bill AE6JV

[1] 
<https://cdn-learn.adafruit.com/downloads/pdf/adafruit-ds3231-precision-rtc-breakout.pdf>

On 1/15/17 at 12:38 PM, [email protected] (Harry Yingst via Elecraft) wrote:

I see New hardware in data centers lose more than a second a week without a external clock source to update them.

------------------------------------------------------------------------
Bill Frantz |"Insofar as the propositions of mathematics refer to 408-356-8506 | reality, they are not certain; and insofar they are www.pwpconsult.com | certain, they do not refer to reality.” -- Einstein

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]

Reply via email to