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Old 27-03-2007, 09:44 AM
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allan gould
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allan gould is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 4,485
Have almost finished the translation, but the friend doing it got stuck on the tips section as it was too technical for him. But at least have a good idea of how it works. Also was contacted by Martin Mylivec re my autoguider and he said it would be sent off mid-April. Its one of these in picture as he is waiting for the silk screening on the CNC case to be finished (Damn, just cant wait). He also mentioned that in the latest version of his TVGuider he has no calibration routine but has written a high precision guiding routine so that sub-pixel guiding with a small guidescope (see quote below).
In last version of firmware, I added long avaraging (up to 50frames -
2sec) for ultra-high precision. Here you can apply Ratio (RAT) parameter. This sets length of correction pulse (because at for example
0,5 or 1 sec. correction period there is not possible to work like realtime positional feedback). This is similar to calibration, but you must find correct pulse length manually. There are 10 predefined values of RAT parameter. This function is new in this serie of TVGuiders, and you can disable it. I'm testing it too in my piece and it looks so it works well with very short guidescopes. (I tried guide this way 1m Newtonian by 250mm finder) There is possible, so legal calibration will be in one of latest firmware upgrade. But TVGuider can work without it, like it works for people who have one of two previous lots. Simply in positional feedback mode.
Easy to set-up, easy to use.


I hope this will be of interest
Regards, Allan
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