Search found 82 matches

by Jean-Francois
Fri Nov 20, 2020 5:38 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Filipe, One way for better stability is to fix the cable at the camera housing ... Img_2315.jpg Here with the short cable for the direct connection to my EAGLE2 mini computer. For inside test, I use a 2 m cable. For the slow readout of the camera ... sometimes the "Force Still Mode" ...
by Jean-Francois
Thu Nov 19, 2020 4:52 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Christian, Robin and Kai, Concerning the master/slave mode of the camera: Yes, I read some information on the QHY website. I was sure that the "NASA" team perform some measurement with synchronized cameras. Robin, is it possible from SharpCap to access/modify the master/slave mode of...
by Jean-Francois
Thu Nov 19, 2020 12:22 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Christian and Felipe, Felipe ... if you open my PDF files (MONO16...), then you can compare your camera with my camera ... The matrix has in the first column the exposure time, in the next columns the results for USB traffic 0, 5, ... 20. My script founds 10939 and 3757366 also very, very near...
by Jean-Francois
Wed Nov 18, 2020 4:00 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Christian and Filipe, Thank you for the last tests. First Christian ... For USB2 ... you write "immediately locked" ... you mean the GPS status message. But ... do you verify that the StartPos is the correct one ... mean with a small lower StartPos value, the LED should disappear and...
by Jean-Francois
Tue Nov 17, 2020 3:54 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello, I do some additional tests. I use an old laptop and I found USB 2.0 on my desktop computer :roll: A) Desktop computer (new, January 2020): W10, Ryzen 3950X, ASUS Prime X570-P with USB 3.2 and USB 2.0 (on the back of the housing) B) Laptop (~ 2012 ?): HP EliteBook 2570p, W7 and only USB 2.0 C)...
by Jean-Francois
Sun Nov 15, 2020 7:13 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Robin, Look at this message from Kai getrost: https://forums.sharpcap.co.uk/viewtopic.php?t=2241&start=60#p15623 or go directly to the link: http://www.occultations.org/meetings/NA/2020Meeting/Mtg%202020%20Sun01%20-%20QHY174%20Calibration%20-%20Kai%20Getrost.pptx You can read the page 50 t...
by Jean-Francois
Sun Nov 15, 2020 4:16 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Christian and Robin, I repeat some test with the USB 2 port on my laptop this afternoon. Christian ... I think that to look only on the GPS "locked" is not sufficient. If you want to use the LED calibration, then it should be stable and the StartPos shall find the real start and the ...
by Jean-Francois
Sat Nov 14, 2020 8:51 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Robin, From your last message ... "it worked nicely, finding accurate values near to my original values of start=103000, end=31000." ???? The end position shall be larger than the start position ... it is the difference * 75000 or not ? Also with your start 103000 and end 31000, it i...
by Jean-Francois
Sat Nov 14, 2020 8:43 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Robin and Christian, I do first a sequence of test with my laptop and the cable connected to the USB3 connector. It was all working good with my new script. (Note, I install the last version of SC 3.2) After that I stop SC and unplug the cable. And I restart with the cable connected to the USB...
by Jean-Francois
Sat Nov 14, 2020 7:03 pm
Forum: QHY Cameras
Topic: QHY 174 GPS Calibration LED issue // USB Traffic weirdness
Replies: 130
Views: 15794

Re: QHY 174 GPS Calibration LED issue // USB Traffic weirdness

Hello Robin and Christian, I start my laptop and I will test it with USB 2 and USB 3. I will use my script on the laptop after I send this message. On my desktop computer (where I do all my tests in the past), I have only USB 3 connectors. Note: I try to insert some PDF documents with the results of...