ASI1600MM-Cool horzontal lines

hemmi

Anyone have any ideas whats causing these band lines in my images. They are not fized, they alternate image to image. So calibration wont remove them.

Anyone seen these? Any ideas how to get rid of them.

Interference? USB speed? TEC?

This sub was 180s gain 139 offset 21, tec set to -25C (however never reached, so TEC was at 100% power).

This is first light with a new camera. So any help would be appreciated.

Hemmi

Sam@ZWO

usually from DC Power supply

please try to exchange one and try gain

hemmi

Sam wrote:
usually from DC Power supply

please try to exchange one and try gain

I do not have AC at my mount to try a different supply. I only have 12v at mount, fed from a ham radio power supply inside house, to mount via huge 8awg cables. This goes into a distribution box that powers everything. Even my USB3 hub and laptop are powered off this same 12v line.

I did it this way to make portable operations simple. Just a single 12v line to a battery/batterries powers everything.

Lowering the gain slightly reduces the lines enough that they are easy to remove in post processing. I suspect also that something is being introduced into the power from another device. I will try to add some additional filtering on the line to the camera. Maybe some ferite would do the trick.

But for now the lowering of the gain slightly has all but removed the lines to a point I can live with.

Sam@ZWO

hemmi wrote:
Sam wrote:usually from DC Power supply

please try to exchange one and try gain

I do not have AC at my mount to try a different supply. I only have 12v at mount, fed from a ham radio power supply inside house, to mount via huge 8awg cables. This goes into a distribution box that powers everything. Even my USB3 hub and laptop are powered off this same 12v line.

I did it this way to make portable operations simple. Just a single 12v line to a battery/batterries powers everything.

Lowering the gain slightly reduces the lines enough that they are easy to remove in post processing. I suspect also that something is being introduced into the power from another device. I will try to add some additional filtering on the line to the camera. Maybe some ferite would do the trick.

But for now the lowering of the gain slightly has all but removed the lines to a point I can live with.

these line noise usually come from AC-DC adapter, you can do a test next time try connect the camera directly with the 12V cable and nothing else