[time-nuts] Thunderbolt & Lady Heather 48 hour precision survey

Mark Sims holrum at hotmail.com
Sat Nov 27 14:35:44 EST 2010

Lady Heather has an oscillator "autotune" function (&a from the keyboard) that sets reasonable values for a lot of the oscillator and filter parameters.  The oscillator autotune function determines the oscillator EFC gain value,  then sets that,  the damping factor,  the time constant,  and the antenna mask angle and AMU values to good time-nutty settings (that you can then go back and modify to your heart's content) 

Ideally,  you should first set the antenna elevation mask angle to 0 degrees (F E 0),  clear the signal level data (C S),  then let it run for a few hours (24 is best).  From this it determines the antenna elevation angle where the signal begins to crap out.  Then run the oscillator autotune (& a)  You can then manually set any of the parameters that you don't like.


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