I want to share some thing change i found in C Band transmission from Insat 4A here. i think this is related to some activities in the Air . i had shared this Shubham too personally days back itself,
i have 12' C Band Dish and hetting all Frequencies of C Band with out any issues till few days back. 1 more thing to add is the Skew of C Band is not 100% , this bcoz if a make it perfect i am not getting few Frequ.. in Measat , ST2 C Band and IS 17 . so compromised as i am getting all Frequencies from Insat 4A.
Now from few days back i am not getting the signals from 2-3 week signal frequencies and i adjusted the skew and the signals r coming but reverted back to get all frequencies from earlier said Frequ..
So as i think the Polarity or some thing which i dont know has been changed or adjusted to make the GSAT Vertical pol or reception to perfection . I dont know what they changed or updated but only prediction as i am not getting signals as earlier used to in my 12'Dish.
This is my guess and calculations only and not the confirmations. any sat experts may give the actual reason.