iOptron CEM120 EC initial power up, firmware update and encoder calibration.

Firstly apologies for the very poor sound on this video. The batteries ran out on my radio microphone without me knowing, so some of the audio is from the awful microphone in a GoPro. This video runs through connection, initial power up and firmware update on my CEM120 EC. The mount has a number of methods for connection, but the hand controller firmware update needs the RS232 connection. Below is a link to the leads from Amazon which I used (big thanks to John Kulin for the information) and these work perfectly. https://www.amazon.co.uk/gp/product/B...