[mikeoday005]

The Synscan 4 with my new mount ( EQ8 ) has strange behaviour and I am trying to find out if it is bug, a fault in the unit or a strange "feature" of the firmware.

During tracking in RA the celestial declination reported by the Synscan is slowly changing even though the declination axis of the mount is apparently not moving.

Has anyone else noticed this? If you get a chance could you check?


In my case the problem is seen via the following steps:

- start aligned scope from park
- select and rotate to object using Synscan
- on hand controller display the rotation angle of the mount's declination/altitude axis ( Utilities/ShowPosition/AX1 ) - whether tracking in RA or not, I have found this figure to be constant as soon as the mount has finished moving to the target.
- on hand controller display the Celestial declination ( Utilities/Show Position/DEC ) - it is this figure that is slowing increasing ( ~ 5" / min ) ( note it does not change if tracking is set to "off" ).

Does anyone else have this "issue"?

Do you have any ideas what it could be?


Note that this has nothting to do with PHD or flex of the tube or imaging system - the above is just related to the declination information being displayed ( and exported ) by the Synscan unit.


Much appreciated,

Mike