Solved, saw Filters were damaged.

Hy,

today I found out that my coverage is suddenly bad.

Normaly I had 120-150 planes, now only 25 ?

I have a GP-1090 Antenna, cableing looks good.

A test with the original antenna under the roof with no window had 5 planes.

How can I check if the receiver or maybe a software thing is fault.

Ralph