Your doing well ..... i find it an odd satellite ... reception of a transponder might be good for a few nights then go weak or disappear completely a few days later ...
Certainly better reception for you in the south than it is for me up here .. not set up properly for C band on the 2.4 here currently, so cant check it out - Very stormy here tonight in the north west.
Thanks Nelson, I swapped over the feed arrangement from the Zinwell LNBF in a "non polo pipe" to a Titanium Wimax LNBF without any type of pipe. I had to fit a shorter set of feed support arms to get the Titanium LNBF feed throad aperture closer to the dish and to its correct focal distance.
The LNBF swap over probably got me about 0.4db instantly and then I adjusted the Az/El for the new feed arrangement which nicked a few more fractions of a dB. It was just enough to tip a few of the frequencies persistently just under a lock into the lock zone. The other factor is time of day, most of the frequencies I locked seem to have higher signal levels in the evening.
I might swing the dish back round to 46.0 East now I have changed the feed arrangement to see if I can squeeze any more juice from that satellite? On the other hand, I am tempted to start twizzling about with the polarity skew and the feed/scalar pair distances to see if I can nick a few more fractions of a dB.