Signal weak with HD channels

[samias]

I am having problems with some HD channels where the signal strength is weak, I get the error message Tune failed.

I get the non HD channels around 45 to 65 percent , but these HD channels are around 15 to 20 percent.

Is there a way to increase the signal ?

Thanks

[grtmoby]

this depends on ur location, sat to be received, parts used, dish alignment.....