Not sure if this helps but I had major problems with 2 invacom c120 lnb's when I first got my viark sat 4k four weeks ago
I ended up replacing my moteck positioner which solved the problem
It was very strange had previously used lnb's and positioner with tbs6903 no problems
I ended up replacing my moteck positioner which solved the problem
It was very strange had previously used lnb's and positioner with tbs6903 no problems