[time-nuts] Accurate Thunderbolt position

[Predrag Dukic]

You can physically move Your antenna to the 
position that matches some 5 digit exact position. :))





At 00:04 14.7.2009, you wrote:

>While playing with getting the Thunderbolt to 
>supply a more accurate/reliable position,  I 
>came up with a way to filter the lat/lon/alt 
>data in such a way that you can get a pretty 
>darned accurate location (a quick test shows sub 
>1 foot accuracy should be doable).
>
>The only problem is there seems to be no way to 
>get the tbolt to accept and/or store that 
>position.  The 0x32 command that sets the 
>"accurate" position only uses single precision 
>numbers which are good to around 5 decimal 
>points.  The command that saves the survey 
>position has no way of letting the user enter 
>that position.   Does anybody know of a way to 
>get the Tbolt to accept an externally generated high-accuracy position?
>
>The only way that I can think up that might work 
>is to calculate the high accuracy position,  put 
>the unit into 3D fix mode,  wait until it 
>randomly comes up with a fix that is very close 
>to the desired value (which may never 
>happen),  then put the unit into position hold mode...  craptastic...
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