Ref 7243: The channels memorised in this receiver are received with a spotted effect.
Also, their corresponding screen menus are not stable.
What is the problem?
Those memorised channels have been factory set using the theoretical installation parameters.
They do not dispose of local oscillator LNB frequency drifting.
In fact, the LNB output frequency is never equal to the theoretical one.
Because of this, a fine frequency adjustment for each memorised channel is necessary.