[time-nuts] Lady Heather's latest bells and whistles

Mike Cook michael.cook at sfr.fr
Wed Sep 14 06:12:25 EDT 2016


Hi Mark.

> Le 14 sept. 2016 à 03:51, Mark Sims <holrum at hotmail.com> a écrit :
> 
> Okee dokeee...  here it is.   Not much difference.   The initial step is smaller,  but it still spikes.  After that things are pretty much the same.   After it cool down,  I'm doing another run with the initial voltage set to the peak of the spike.
> 
> One slight difference was with the new initial voltage setting (closer to the current 10.00000000 MHz operating point),  it appeared to acquire satellites a few seconds faster (but that could just be luck of the draw).  Setting the initial voltage to something far off of optimum would be interesting... I seem to remember it taking several minutes to acquire.
> 
> (Gratuitous astro feature plug...   Lady Heather can show moon rise/transit/set/age times in addition to the sun times)
> 

I just upgraded from 3.0 beta and was hoping to get these additions from your download page, but the V4.00 version doesn’t appear to have them. I see from your screen shots that you are up to V4.08. Is this available to the nuts public? Another Q. I see that with 4.0 I see « LEAP: PENDING! «  whereas on your V4.08 screen shot I see the countdown. Where does LH get this info from?

Thx,
Mike
> ----------------------
> 
>> I would be very interested to see the result of another dead cold start 
> of this same Tbolt, with INIT set to 0.518v.  Of course, the time at 
> which the second satellite is acquired (hence, the temperature of the 
> crystal when discipline begins, and thus, the exact DAC voltage required 
> for a stepless transition, will be a bit different from one start to the 
> next, so it won't be perfect.  But it will be a hell of a lot better 
> than starting from 0.499v).
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"The power of accurate observation is commonly called cynicism by those who have not got it. »
George Bernard Shaw




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