Hi,
if you want LNC for C band don t spend money with russian/chinese stuff.Quality it s not there,belive me,i m living here and i know wery well.
Try to found samthing from Norsat,SMW and other first class quality,not matter if they are second hand,5-10 years old.Quality it s there and last for longer.
For long times i try to found one C band LNC made from Norsat,SMW and other quality manufacturer but not succes.They are simply out of my range,expensive ant hard to be found here in Transilvania.
Lots of Dx-ers from my country buy chinesse stuff for C band Dx-ing.Are not good,especialy fro fringe areas,like your case.Noise Figure NF must be 10 to 13 K maximum.Above it s useless.
It s strange,but the test shows that older C band LNC from first digital generations made 5-10 years ago proved to be more sensitive for DX-ing compare with today cheap crap.
All the best from Transilvania.
mouse.