Stefan12
04-01-2015, 12:03 PM
Hi,
I have a Losmandy G11 mount with Gemini 2.
Could someone please tell me how you go about guiding?
I'm using a Orion mini 50mm finder scope with an ST4 cable plugged into the guide port of the Gemini 2 control box. I have the guide rate set to 0.5 or 0.8.
Now, ever since I bought the mount I've never been able to get a consistent guiding result. I would have a nice flat guiding graph for a while, but then I would suddenly see a spike in either RA or DEC, which would be un guidable. The graph again would flat line.
I tried everything to stop it. Polar alignment, I checked for cable drag, I checked my power supply to see if there were voltage spikes, but nothing would stop it.
I then tried calibrating the guider as normal with a guide rate of 0.8x and then once calibration was complete, I then stopped the guider and changed the guide rate to 0.1x.
For some reason the guider worked! The guiding was flat and constant with no silly RA or DEC spikes.
So my question is what the heck is happening with my guider?
why does changing the guide rate after calibration dictate what happens to the guider?
I thought the guide rate should never have to be changed?
I'm using a WO Megrez 90mm
Stefan :)
I have a Losmandy G11 mount with Gemini 2.
Could someone please tell me how you go about guiding?
I'm using a Orion mini 50mm finder scope with an ST4 cable plugged into the guide port of the Gemini 2 control box. I have the guide rate set to 0.5 or 0.8.
Now, ever since I bought the mount I've never been able to get a consistent guiding result. I would have a nice flat guiding graph for a while, but then I would suddenly see a spike in either RA or DEC, which would be un guidable. The graph again would flat line.
I tried everything to stop it. Polar alignment, I checked for cable drag, I checked my power supply to see if there were voltage spikes, but nothing would stop it.
I then tried calibrating the guider as normal with a guide rate of 0.8x and then once calibration was complete, I then stopped the guider and changed the guide rate to 0.1x.
For some reason the guider worked! The guiding was flat and constant with no silly RA or DEC spikes.
So my question is what the heck is happening with my guider?
why does changing the guide rate after calibration dictate what happens to the guider?
I thought the guide rate should never have to be changed?
I'm using a WO Megrez 90mm
Stefan :)