[seeker372011 (Narayan)]

Hi all:

i have been successfully autoguiding with PHD for the last several months and have had sessions where I have imaged the same target for up to 4 hours or longer-10 minute subs. I use an Orion DSI and 900mm guidescope. I plug the autoguider cable into the hand controller-I dont use a shoestring adapter/ST4 port..but it has always worked like a charm

as far as i know I have changed nothing. Yet the autoguiding is simply not working. I spent the last two nights and tried everything I could think of -including a factory reset for the mount, changed various settings in PHD guiding, calibrated and recalibrated in PHD, changed the power supply more than once, tried guide stars near meridian and near the pole and absolutely nothing worked. I even purchased a new power source yesterday ( a 17 amphour gel battery) but that didn't help either. Polar alignment was good if not very good-I took over an hour to get it right. I tried various anti-backlash settings but that didnt seem to help either

PHD would calibrate, say it was guiding-and within seconds the guide star would move out of the the target area. Its almost as if the autoguiding commands were reinforcing the drift rather than countering it.

Any suggestions would be greatly appreciated. I am going to post this over at the PHD forum as well

Thanks in advance for any advice or suggestions

Narayan


I am simply at my wits end. I have just downloaded the latest version of PHD guiding and will install and try that but other than that I am not sure what to do.