The QHY-GPSBOX is the professional high precise GPS hardware time stamp device for some of the QHYCCD rolling shutter cameras. It communicates with some of the QHYCCD camera with the 6pin cable.
To compare with the QHY174GPS, it can get some bigger sensor camera has this feature. But QHY17c4GPS stil has better accurate then rolling shutter cameras. Becuase QHY174GPS is the global shutter camera and the build-in GPS module can meassure the accruate time of the beginning and ending exposure time of the whole image. For rolling shutter camera, the QHY-GPXBOX only gives the time of the frame sync (like QHY600,QHY411) or the start/end exposur time of one row (like QHY4040,QHY42PRO,QHY2020 etc)
For details please look at
Edited by QiuHY, 30 May 2020 - 09:44 AM.