calibrate sensors

[selenio]

Hello all, I bougth a new LX90  GPS. The automatic alignment put  the two alignment Stars out of the field  of the viewfinder (very far from it).When I performed calibrate sensors and  inmediately  ( without turn off the switch of the telescope) automatic alignment, the two stars are now very close to the center of the crosshairs of the viewfinder . But when I shut down the power ,the autostar forgetting the sensor calibration  and the new alignment stars are very far from FOV of the  viewfinder
The battery of the LNT is new and verificated.The version of the autostar is 5CE1.
Any corrections and additional info on the subject will be welcome and appreciated.
Regards to all,

[Toxo]

Selinio,

Welcome to the 4M community!!  I  have both an LX 90 and an LX200R, and know exactly what you are going through.  In my particular case, I live near a large iron ore deposit and it throws the compas off.  On a tripod, I found that in ALT/AZ mode I had to run the Calibrate Sensors every time I took the telescope out in order for it to autoalign well.  I just got into the habit of doing it, and it has served me very well since.  Once the LX200R went on a wedge and a pier it was no longer necessary, but I still do it routinely when I use the LX90.  I also found that if I calibrated the sensors and THEN ran the Smart Mount routine my GoTo accuracy was absolutely fantastic, every time.

So hang in there and do the routine - you may have something locally affecting your system.  It IS a bit of a pain, but I think well worth it.

Cheers,


Toxo

[selenio]

Thanks for the assistance! It's much appreciated.

Daniel

[Russell]

Hi Toxo and Daniel,
For what it’s worth, my 8” LX200gps that I bought in 2005 has always been a good bit off the alignment stars.  I just go ahead and move over to them and get them centered and from that point on it will go to anything I want pretty well.  I calibrated sensors, trained the drive and all that stuff but that never seemed to even make a difference in getting the alignment stars any closer.  But once I get the alignment stars centered I’m good to go.  I guess it should also be noted that I use it for casual viewing. No polar mount or anything like that.

[Taras12]

I found that the alignment is twitchy if you are around anything that gives off a slight magnetic field, eg. powerlines.