Ok I have been using phd for ages, ever since I moved on from guide dog oh about 10 years ago maybe.
Anyway I has real trouble ..before cloud came over, rendering the whole exercise null and void...with guiding in dec.
Ultimately the only way I could get any sort of guiding..and it was still pretty spiky in the graph..was to increase the guiding duration from the default 100 ms to 400 ms
I haven't had to do that this last ten years! This is quite unusual..I have previously found that any problems are in either dec not calibrating at all..usually a cable fault..or to do with balance of the scope of the mount and ra doesn't guide well either in such a case.
Now I couldn't actually manage an image because by the time I did all this..took some experimentation it was clouded over..but just asking..has anyone else had a similar experience . What do you think is creating this?
Thanks in advance
