[time-nuts] Z3815A date problem fixed?

Magnus Danielson magnus at rubidium.dyndns.org
Sun Jan 26 07:59:40 UTC 2014


On 26/01/14 02:33, Morris Odell wrote:
> Thanks for the reply Magnus. I know the frequency control function is
> unaffected by the date problem but I'm far too obsessional to ignore it :-)
>
> I contemplated the AVR solution to correct the code but once I looked at the
> output of the receiver with a MAX232 as suggested here, I found there were
> quite a few different and varying NMEA and proprietary sentences being sent
> each second and most of them contained the time & date in one form or
> another. Not knowing which ones the Z39815 relies on means they all have to
> be identified and corrected. Programming an AVR to fix this would not be
> beyond me but it would be complex and time consuming compared to the
> receiver transplant and I'd still have to make the hardware for the AVR. It
> would also mean finding a bit of room inside the Z3815 to fit an AVR board .
> It's also sort of kludgy, like wearing gloves because your pen leaks.
>
> Better, I think, to transplant the receiver. The GT-8031 will suffer a
> similar fate according to the spec, at midnight on December 31, 2079 but
> I'll be 130 years old then so probably won't need to replace it again....

Your doomsday machine will fail on that date. Good to know. No manic 
laughter from your grave after that.

Ah well, I understand your reasoning. Would be interesting if someone 
did do the other approach as well.

Cheers,
Magnus




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