Here is the continuation of the story, I was able to re-flash the system on my instrument using system images. The idea is based on the information in the message from wagbagger, where he specified specific memory ranges on the 486 control panel and commands on the SysVue monitor: https://batboard.b...

My question is how to properly change the control board on the instrument and do not mess up with calibration data. This issue was caused by the practical situation - it is necessary to replace the control unit. Based on the earlier discussions of the Com-120 boards, any instrument holds two copies ...

My apologies for the subtopic, which was already discussed on the forum before. I'm looking an advice on what options are available today to upgrate the firmware on the Com-120B instrument? I called VIAVI Solutions Inc and their support centre in Wichita, but Com-120B/C systems are completely out of...