Sorry guys for some delay!
I was busy researching and testing, and did identify the problem I have - I selected Dish mount point on a balcony incorrectly, so beams from sats were obstructed in various level in all dish positions by either upper balcony or rebar. I reported these findings on another forum. Its amazing, how much you can learn from selecting all components on your own and finally mounting and aiming a motorized system yourself! Just a short time ago I felt like a newbie, and now I posted my own
Tutorial on mounting and aiming a motorized system in a confined space. I'll post it here shortly. Generally, understanding basic sat topics like Clarke Arc, azimuth and elevation angles, transponders and coverage zone, Offset Dish and LNB work and specs, a Sat Receiver functionality range, is a must for motorized system setup. Your feedback and suggestions on the Tutorial are appreciated.
As to SV 360 Elite, I agree 100 percent with AcWxRadar - this receiver was not designed for a motorized setup. More precisely, it has good hardware, but its firmware needs to be tweaked a lot and finalized to allow using it with a motor and for weak linear sats. It seems this task was not on the agenda for its coders at all. Neither SV support team knows a lot if anything about Motorized system setup. On top the receiver's firmware has several major bugs affecting its performance that were reported by me in detail in a
different place, which has a better section of Bug Reports and Tutorials for this receiver. I have to say however, the receiver has almost perfect picture, if you can get it on the screen, and very sensitive excellent tuner. As to catching linear sats in general, I was able to get a few channels on some birds like Galaxy 25 and 19 despite my bad mount setup, and will try to revisit the issue after moving the dish mount and re-aiming the system. While moving along the arc, I senced to be around a linear sat, when S level changed to a continuous pulse profile around a given value like 60, so I felt getting a variable signal on top of LNB voltage and scanned. Q level on this receiver stays firmly at 0 at dish setup (except for the strongest 119W), while Q may stay 20-to-100 after switching to a channel depending on sat. I had Q=0 for 110W at setup, and Q=100 firm after switching to its unscrambled channels. I'll try to re-post the reports here later. This forum is one of most popular on FTA topic in general. To add about SV line-up, they cut the corners by not giving separate output ports for each tuner, so that's not really a 2-tuner fully functional receiver. They also didn't specify to include Ethernet Port, and now selling a Serial-to-Ethernet Dongle for extra $100, while similar generic dongle on EBay costs $5.
AcWxRadar: as to your proposal to look at Fortec Star, as I said, I trust you completely on that. The problem however is, all these receivers are about to get obsolete without HD, DVB-S2, 4-2-2 support, so it gets real pain to use with an HD TV pretty fast. I'd say, SD receivers are now better suited as complementary units. May be it wasn't the right choice in a longer term anyway. I'll think about your proposal though.
Thanks to everyone for help and support!