Frreview problems can u help



Just moved into a new flat, and connected up my Freeview box, thru communal aerial .

Problems in receiving CH4 & ITV2 thru Digital box,

Screen sound spits, pixel blocking and freezes leaving these channels unwatchable

Freeview box is Grundig GDT2000, area is near Romsey Hampshire,

All other terrrestial stations are fine and the aerial guy has checked signal levels both terrestial and digital are well within spec.

Urgently need anybodys help in resolving this , any comments appreciated ?
did your aerial guy check the c/n on both analogue & digital signal,

you could have a good signal on both but if the c/n is cack then youre gonna have probs especially on itv as its 64 qam not 16 like other muxes
carrier noise mate, you could have a really high signal but if youve got poor c/n then you gonna have probs, spectrum analyzer is the only accurate way of finding all these measurements

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