After the second digital reciever broke in a couple of years I started to suspect that a too weak signal from my home made antenna caused the reciever to work "hard" (nothing that I know about electronics supports that assumtion but anyway).
Home made antenna, ver 1.0
Just a coax cable. I removed the shielding 40cm from the outer end.
Started a project building a fractal antenna from bits and pieces.
Studied the channel frequencies to find a good average lengt (for the channels I mostly watch) for the antenna.
Home made antenna, ver 2.0
It works (and why would it not). Maybe I should take a more scientific approach and measure if there is a noticable improvement in signal strenght? Maybe later.
If there is any ver 2.x it will probably have a backplane...
EDIT: Checking the signal strenght and picture quality: Very good 98/98% for Channels 23 & 42 (490/642MHz), good 80/96% for Channel 50 (706MHz) and not so good 45/50% for channel 56 (754MHz). At least it's a big improvement compaired to the earlier antenna.