Thanks for the testing Karl. I've actually seen this very issue from Magnus mount as well (CGX IIRC). But it was intermittent. Sometime detectRTCCTS() would return false and all I see is echo, other times it works OK and responds to commands. I haven't been able to establish a pattern, appears to work most of the time. The only issue I had is that it would abruptly stop tracking/GOTO past a certainly hour angle and I was not able to resolve this issue, hence I asked for another test for Celestron equatorial mount which I wasn't able to do since then.

Read More...